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Silicon Si powder CAS 7440-21-3

About Silicon Si powder:

Silicon fume (micro silicon powder or silicon fume), also known as micro silicon powder, scientifically named “silicon fume”, is a process of smelting industrial silicon and ferrosilicon in an industrial electric furnace at high temperatures. The smoke and dust escaping with the exhaust gas is collected and processed by a special collection device. Become. The scientific name of silicon powder is “micro silicon powder” or “silicon powder“, which is a process of high-temperature smelting of industrial silicon and ferrosilicon in an industrial electric furnace. The smoke and dust escaping from the exhaust gas are collected and processed by a special trap. In escaping smoke and dust, the content of SiO2 accounts for about 90% of the total smoke and dust. Its particle size is very small, and the average particle size is almost nanometer level, so it is called silicon powder, also known as silicon metal powder.

If you want to know silicon powder price, please send inquiry to sales1@rboschco.com

Silicon powder is a non-toxic, odorless, non-polluting inorganic non-metallic material. Because it has good temperature resistance, acid and alkali corrosion resistance, high resonance coefficient, high insulation, low expansion, stable chemical properties, and high hardness, it is widely used in chemicals, electronics, integrated circuits, electrical appliances, plastics, and coatings, Advanced paint, rubber and other fields.

Secondly, only carbon, silicon is the most abundant element on earth, with an abundance of 277,000 ppm. It usually exists in the form of silicate, which is found in many rocks, clays and soils. Silicon is obtained by reducing silicon dioxide (sand, SiO 2) with carbon. Through zone refining, components used in applications that require high-purity materials (such as semiconductor devices) can be further purified, and the resulting purity is better than 1:109. There are two allotropes of silicon. Brown silicon is a powder, white crystalline (metal) silicon is gray, and the latter is more widely used. Lump silicon has no reactivity with oxygen, water and acids (except HF), but it is soluble in hot alkali.

Silicon has many applications in various industries. For example, ultra-high purity silicon is used in the semiconductor industry due to its semiconductor properties. Silicon is also used as an alloying element in certain alloys (such as ferrosilicon, an alloy of iron and silicon used to introduce silicon into steel and cast iron). It is also used in glass manufacturing. Feel free to send an inquiry to get the latest price if you would like to buy Silicon Si powder in bulk.

Silicon Si powder CAS 7440-21-3
Specifications of nano silicon powder
nano silicon powder APS(nm): 2-1000nm
nano silicon powder Purity(%): >99.95
nano silicon powder Specific surface area(m2/g): 60
nano silicon powder Volume density(g/cm3): 0.09
nano silicon powder Density(g/cm3): 2.3
nano silicon powder Crystal form: Sphere
nano silicon powder Color: yellow
nano silicon powder CAS No.: 7440-21-3
nano silicon powder EINECS No.: 231-130-8
 
Product performance of silicon powder
High purity, the scattered performance is good, particle size small, distributed even, is bigger than, the high surface activity the surface area, the pine installs the density to be low, activeness good and so on characteristics. Nanometer silicon may with the graphite either a carbon nanometer tube, or nanometer titanium nitrides and so on compound, makes lithium battery’s cathode material, may enhance lithium battery’s capacity and the service life. Is the new generation electro-optic semiconducting material, has the wide gap energy.

How is Silicon Si powder produced?
Silicon powder with a purity of 96-99% is made by reducing quartzite or sand with high-purity coke. The reduction is carried out in an electric arc furnace, and the excess SiO2 is used to prevent the accumulation of silicon carbide (SiC):
SiO 2 + 2 C→Si + 2 CO

2 SiC + SiO 2 →3 Si + 2 CO
This reaction is called the carbothermal reduction of silicon dioxide and is usually carried out in the presence of scrap iron, which contains a small amount of phosphorus and sulfur, thereby forming ferrosilicon. Ferrosilicon is an iron-silicon alloy containing different proportions of elemental silicon and iron, accounting for about 80% of the world’s elemental silicon production. Ferrosilicon is mainly used in the steel industry), mainly used as an alloy additive in iron or steel, and Used for steel deoxidation in integrated steel plants. Another reaction sometimes used is the thermite reduction of silica, as shown below:

3 SiO 2 + 4 Al→3 Si + 2 Al 2 O 3
Leaching 96-97% of powdered pure silicon with water can produce ~98.5% pure silicon for use in the chemical industry. However, for semiconductor applications, even higher purity is required, which is produced by reducing tetrachlorosilane (silicon tetrachloride) or trichlorosilane. The former is made by chlorinating waste silicon, while the latter is a by-product of organic silicon production. These compounds are volatile, so they can be purified by repeated fractional distillation and then reduced to elemental silicon using very pure zinc metal as a reducing agent. The resulting sponge-like silicon wafers are melted and then grown to form cylindrical single crystals, which are then refined through zones. Other routes use silane or tetraiodosilane (SiI4).

Another method used is to reduce sodium hexafluorosilicate, a common waste product in the phosphoric acid fertilizer industry, with metallic sodium: this is highly exothermic and therefore does not require an external fuel source. Ultra-fine silicon has a higher purity than almost all other materials: the production of transistors requires that the impurity level of silicon crystals is less than 10 per 10 1 part, and the impurity content of less than 12 per 101 part is needed and obtained under special circumstances.

Applications of Silicon Si powder:
Silicon powder is finely processed by crushing, purifying, grinding, grading and other processes using silicon dioxide (SiO2), also known as quartz. It has high purity, white color and reasonable particle gradation, and has unique properties and a wide range of uses.
Silica fume is an efficient active admixture, which can significantly improve the strength, impermeability, frost resistance and durability of concrete. The characteristics of silica fume concrete have attracted people’s attention, and silica fume concrete is widely used in water conservancy and hydropower engineering, construction engineering, highway engineering and bridge engineering.

(1) Good insulation: Due to the high purity of silicon powder, low impurity content, stable performance, and excellent electrical insulation, the cured product has good insulation and arc resistance.

(2) It can reduce the exothermic peak temperature of the curing reaction of the epoxy resin, reduce the linear expansion coefficient and shrinkage rate of the cured product, thereby eliminating the internal stress of the cured product and preventing cracking.

(3) Corrosion resistance: Silica powder is not easy to react with other substances, and does not chemically react with most acids and alkalis. Its particles are uniformly covered on the surface of the object, and it has strong corrosion resistance.

(4) The particle gradation is reasonable, which can reduce and eliminate precipitation and delamination during use; it can increase the tensile and compressive strength of the cured product, improve the wear resistance, and increase the thermal conductivity of the cured product and increase the resistance. Combustion performance.

(5) Silica powder treated with silane coupling agent has good wettability to various resins, good adsorption performance, easy to mix, and no agglomeration.

(6) Silica powder is used as a filler and added to the organic resin, which not only improves the performance of the cured product but also reduces the product cost.

Storage conditions of silicon powder
This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.
 
Packaging of silicon powder
Vacuum packing of nano silicon powder , 1kg/bag, or as your request.

Nano Diamond Powder CAS 7782-40-3

About Nano Diamond Powder:
Nanodiamond powder is the hardest known material. The industrial production of nano-scaled diamonds takes place at high temperatures and under high pressure. What is Nano Diamond Technology? The Nano Diamond Battery (NDB) is a high-power, diamond-based alpha, beta, and neutron voltaic battery that can provide lifelong and green energy for numerous applications and overcome the limitations of existing chemical batteries. The NDB acts like a tiny nuclear generator.

Applications of diamond powder Nanoparticles include their use as filling components in synthetic materials and in the production of polishes. In oil for bicycle chains, they supposedly reduce friction. Diamond has been considered for use in several medical applications due to its unique mechanical, chemical, optical, and biological properties. In addition, recent developments involving the use of diamond in prostheses, sensing, imaging, and drug delivery applications.

Why is diamond so hard? The outermost shell of each carbon atom has four electrons. In diamond, these electrons are shared with four other carbon atoms to form very strong chemical bonds resulting in an extremely rigid tetrahedral crystal. It is this simple, tightly bonded arrangement that makes diamond one of the hardest substances on Earth.

Diamond Nanopowder is gray spherical high surface area carbon. Nanoscale Carbon Particles are typically 10 – 45 nanometers (nm) with specific surface area (SSA) in the 30 – 50 m 2 /g range and also available in with an average particle size of 75 – 100 nm range with a specific surface area of approximately 2 – 10 m 2 /g. 

Is diamond powder dangerous? Acute health effects: May cause eye irritation, severe eye damage, and skin irritation due to mechanical wear of diamond powders. The fine diamond powder may be inhaled and cause respiratory irritation. Nanodiamonds or diamond nanoparticles are diamonds with a size below 1 micrometer. They can be produced by impact events such as an explosion or meteoritic impacts. Because of their inexpensive, large-scale synthesis, the potential for surface functionalization, and high biocompatibility, nanodiamonds are widely investigated as potential material in biological and electronic applications and quantum engineering. Tungstenmolybdenummetals is a trusted global Nano Diamond Powder supplier. Feel free to send an inquiry about the latest Nano Diamond price at any time.
 
How is Nano Diamond Powder Produced?
Diamond nanopowder can be produced by multi-cathode DC plasma chemical vapor deposition and high-pressure high temperature (HPHT). The potential use of nanodiamonds in biosensor applications. The surface modification of nanodiamonds can enhance its connection mechanism with specific biomolecules. How are nanodiamonds made? Currently, nanodiamonds are made by detonating an explosive in a reactor vessel to provide heat and pressure. The diamond particles must then be removed and purified from contaminating elements massed around them. The process is quick and cheap but the nanodiamonds aggregate and are of varying size and purity.

Features of Nano Diamond Powder cas 7782-40-3
nano Diamond powder purity: 99.5%
nano Diamond powder APS: 3-5 nm(according to user’s requirements)
nano Diamond powder SSA:  ~286.4521 m2/g
nano Diamond powder decomposing Temperature: 629.98oC
nano Diamond powder color: black
nano Diamond powder morphology: spherical & flaky
nano Diamond powder ash:2.218%
nano Diamond powder bulk density: 0.16 g/cm3
nano Diamond powder true density: 3.05-3.30 g/cm3
nano Diamond powder Making Method by Explosion Synthesized

Applications of Nano Diamond Powder:
One of the most widely-used and versatile nanopowders on the market, diamond nanopowder sees heavy use in electronics manufacturing, jewelry, textiles, erosion-resistant coatings, as a reinforcement agent for various substances, in artificial diamond manufacturing, and countless other operations.

Is Diamond used in medicine? Diamond has been considered for use in several medical applications due to its unique mechanical, chemical, optical, and biological properties. These developments suggest that diamond-containing structures will provide significant improvements in the diagnosis and treatment of medical conditions over the coming years.

How diamonds are used in nanotechnology? The industrial production of nano-scaled diamonds takes place at high temperatures and under high pressure. Applications of diamond nanoparticles include their use as filling components in synthetic materials and in the production of polishes. In oil for bicycle chains, they supposedly reduce friction.
Nano-diamond is widely used in various industries such as spaceflight, airplane manufacture, information industry, precision machinery, optical instrument, automobile manufacture, chemical plastics and lubricant, etc.
1.Polishing
Nanodiamonds allow for highly precise polishing of even the most rugged surfaces, making them a highly preferred coating for such tasks.

2.Protective coatings
Adding diamond nanopowder to a protective coating can improve its resistance to damage immensely at a relatively low cost.

3. Reinforcement
Used in resins, ceramics, rubbers, and countless other compounds, diamond nanopowder improves durability and resilience.

4.Quantum engineering
New research indicates exciting possibilities for nanodiamonds in quantum computing and other quantum engineering projects.

5.High precision polishing
For the computer disk heads, the panels, and chips, optics lenses and jewelry; Additives in Polymer complexes can be used as an additive in rubber, glass, ceramic, and textile fabric material;

6.Others
Erosion-resistant diamond films/coatings;
Biomedical materials (artificial bones and joints);
Biosensors; Chemical Sensors;
Field electron emission materials;
Heat-resistant diamond films/coatings; Integrated circuit substrates;
Photoelectric sensors; Self-lubricating, wear-resistant composite coating;
Pressure-limiting sensors; Radiation-resistant diamond films/coatings;
Reinforcing agents for rubber, plastics, and resin; Seed crystal for growing larger diamond;
High-strength abrasive material.

Storage Condition of Nano Diamond Powder:
The damp reunion will affect nanodiamond powder dispersion performance and using effects, therefore, nanodiamond powder should be sealed in vacuum packing and stored in a cool and dry room, the nanodiamond powder can not be exposure to air. In addition, the nanodiamond powder should be avoided under stress.

Packing & Shipping of Nano Diamond powder:
We have many different kinds of packing which depend on the nano diamond powder quantity.
Nano diamond powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Nano diamond powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.


Tungstenmolybdenummetals Nano Technology Co. Ltd. (Tungstenmolybdenummetals) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality nanodiamond powder, please feel free to contact us and send an inquiry.
 

Aluminum Al Powder CAS 7429-90-5

About Aluminum Al Powder:
Aluminum powder, commonly known as “silver powder”, is a silver metallic pigment. It is made by adding a small amount of lubricant to pure aluminum foil, crushing it into scaly powder, and polishing it. The aluminum powder is light in weight, high in floating power, strong in hiding power, and good in reflecting light and heat. After treatment, it can also become non-floating aluminum powder.
Aluminum powder can be used to produce many types of explosives and fireworks. It is also used in the manufacture of certain types of electronic products. Many coatings and sealants contain aluminum powder. Certain products designed to carry current, such as solar cells, are usually made of aluminum powder. Rocket fuel is usually made of aluminum, and many solid rocket fuels are based on chemical reactions involving this metal.
Aluminum powder is present in various products from sunscreen to lightweight concrete to solar panels. It is produced by melting aluminum ingots in a gas furnace and spraying molten metal under high pressure into fine granular powders. . Depending on the atomizing gas used to “blow” molten aluminum from the nozzle head, two types of powder can be produced from this process.
The applications of aluminum pigments range from graphic arts and inks to automotive coatings and protective coatings for bridges and buildings. The pigments are made of aluminum powder, almost all of which are made through a wet milling process. Put mineral spirits, an acid lubricant and aluminum powder in the mill. When the mill rotates, the balls in the rotating chamber cascade the aluminum paste in such a way that it flattens out upon impact and breaks the resulting flakes. Feel free to send an inquiry to get the latest price if you would like to buy Aluminum Al Powder in bulk.

Technical Parameters of Aluminum Al powder CAS 7429-90-5:

Note: according to user requirements of nano particles can provide different size products.
 
Product performance of Aluminum Al powder:
The purity is high, the grain-size distribution is good, easy to disperse

 How is Aluminum Al Powder produced? 
1. Melt extrusion method
The method is to heat and extrude the remaining components (resin, etc.) of the metallic pigment and powder coating through a screw extruder. Although metallic pigments and powder coatings can be completely mixed, the selection of metallic pigments in high-viscosity melts is insufficient. In addition, the metallic effect of the metal powder produced by this method is gray during construction. Therefore, this method is only used to produce hammer powder.
2. Dry blending method
The method is to add the metal pigment dry powder into the pulverized powder coating and mix it with a mechanical mixer. The advantage of the dry blending method is that the mixing of metallic pigments and powder coatings is not very intense, thereby preventing the deformation of the flake metallic pigments, and the metallic effect will not be affected. In addition, the loose pigment/resin mixture is also very conducive to the option of metallic pigments and improves the glitter effect. The disadvantage of this method is that when automatic spraying equipment is used to process the recycled powder, there is a big difference in the shape, density, and carbides of the metallic pigment and resin powder particles, resulting in separation.
3. Supplementary fixing method (bonding process)
In this method, the metal pigment and powder coating are dry-mixed at the same time and heated at the same time, so that the temperature just exceeds the softening point of the resin. At this time, the metal pigment can be fixed on the surface of the adhesive resin powder to prevent the powder from being constructed. The separation of metallic pigment and resin powder during recycling after neutralization construction. It is the popular bonding law.
4. Jet milling method
This method is produced using the principle of supersonic airflow pulverization. Because the aluminum powder is easy to oxidize, it is generally produced by using the JZDB series nitrogen shielded airflow pulverization classifier to produce an ultrafine aluminum powder.

Application direction of Aluminum Al powder:
Aluminum is a metal element in the crust of bauxite. Aluminum is extracted from bauxite and then separated using a chemical method called the Bayer process. Aluminum is a soft and easy-to-shape silver medal and is non-toxic and non-magnetic. Aluminum is available in both solid and powder form and has a wide range of uses on both commercial and personal levels.
Explosive
Aluminum powder is extremely flammable, so one of the most common uses is in pyrotechnic displays. The aluminum powder burns very brightly and produces different flashing effects in the firework show by using different grades of powder. It is also used in a similar way to the explosive composition used in commercial mining. In the past, when photography was still in its infancy, the aluminum powder was also used to make camera flashes.
Paint
Aluminum powder is often used to make metallic silver pigments and is sometimes sold as aluminum bronze in art shops. Aluminum bronze is flake aluminum powder, usually coated with talc or other compounds that reduce its reactivity. Pigments made from aluminum powder are commonly used as coatings in the electronics, packaging and automotive industries. Aluminum powder can also be used to produce thick pastes, which are then coated on the back of photovoltaic solar cells to make them conductive.
Fingerprint powder
Aluminum powder is often used at crime scenes to form potential fingerprints on smooth, non-porous surfaces. According to the British Home Office, aluminum flake powder is the most effective fingerprint powder used on glass. Except for silver, when used on most colored surfaces, aluminum flake powder can provide good contrast. In order to form a print, a small amount of aluminum powder is applied to the surface with a “Zephyr” brush made of fine glass filament, and the aluminum particles adhere to the print and make it visible.
Rocket fuel
Aluminum powder is an important component of solid propellant used in missile and rocket fuel. The easy availability of aluminum powder, coupled with its high reactivity and flammability, means that when used as a solid fuel, it can be used in large quantities, providing a large amount of thrust at a relatively low cost. A well-known example of aluminum powder used in this way is the reusable solid rocket motor of the NASA space shuttle.

Storage conditions of Aluminum Al powder:
This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Aluminum Al powder:
We have many different kinds of packing which depend on the aluminum Al powder quantity.
Aluminum Al powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Aluminum Al powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Nickel Ni powder CAS 7440-02-0

About Nickel Ni powder:
Nickel powder is a gray or gray-black powder with the chemical formula Ni. It is conductive, insoluble in water, ammonia, and concentrated nitric acid. It can reduce nitric acid and finely pulverize hydrochloric acid and sulfuric acid.
 
Nickel powder is divided into carbonyl nickel powder, which is mainly used for coatings and plastics as conductive pigments to shield electromagnetic drying involving radiofrequency coupling, as a variety of high-gloss decorative paints and plastics, instead of aluminum powder as anti-corrosion paint in water-based systems, etc., fine particle spherical Nickel powder can be used for conductive inks.
 
Metallic pigments with metallic nickel as the main component, including nickel powder and flake nickel powder. The former uses distilled and purified carbonyl nickel [Ni(CO)4] vapor to decompose. By controlling the temperature, carbon monoxide is used instead of gas additives. Nickel particles of appropriate size are formed in the presence of reagents (oxygen and nitrogen), and then carbon monoxide is flushed with carbon dioxide gas and the surface oxygen content of the particles is controlled to 0.065%; usually, high-purity nickel carbonyl powder is used in the presence of a suitable volume and liquid medium Next, use steel balls to grind in a ball mill to form flakes of appropriate thickness.
 
Nickel is a chemical element, its symbol is Ni, and its atomic number is 28. It is a silvery-white shiny metal with a light golden color. Nickel is a transition metal, hard and ductile. The powdered pure nickel powder has the largest reaction surface area and can exhibit significant chemical activity. However, under standard conditions, larger nickel flakes react more slowly with air. This is because an oxide layer is formed on the surface and prevents further corrosion (passivation). Even so, only a very small amount of pure natural nickel can be found in the earth’s crust, usually in ultramafic rocks and inside larger nickel-iron meteorites that are not exposed to oxygen outside the earth’s atmosphere.
 
Nickel is one of the four elements that are ferromagnetic at room temperature (the other elements are iron, cobalt, and grams). Alnico permanent magnets based in part on nickel have medium strength between iron-based permanent magnets and rare earth magnets. In modern times, metals have value mainly in alloys. Stainless steel accounts for approximately 68% of the world’s total output. Another 10% is used for nickel-based and copper-based alloys, 7% is used for alloy steel, 3% is used for casting, 9% is used for electroplating, and 4% is used for other applications, including the fast-growing battery industry. In the vehicle. As a compound, nickel has many special chemical manufacturing applications, such as catalysts for hydrogenation, cathodes for batteries, pigments and metal surface treatments. Nickel is an essential nutrient for certain microorganisms and plants that have enzymes with nickel as the active site. Feel free to send an inquiry to get the latest price if you would like to buy Nickel Ni powder in bulk.

Features of Nickel Ni powder CAS 7440-02-0:
English name: nickel powder; nickel flak powder
Molecular formula: Ni
Properties: Gray irregular powder, easy to oxidize in moist air.

How is Nickel Ni powder produced?
Nickel powder can be produced in a few different ways and the process chosen depends on the size of particles and morphology required. One of the most common ways to make nickel powder is the nickel carbonyl process. This process, also known as the Mond process, is used to produce powders with controlled morphology and tolerances. The nickel carbonyl process is also used to refine impure nickel. Solid nickel reacts with carbon monoxide to form nickel carbonyl gas. The gaseous mixture is further heated resulting in decomposition of the metal-carbonyl complex to produce pure nickel metal and carbon monoxide gas.  Fine and extra fine nickel powders can be produced by thermal shock decomposition.  
 
Another method to produce nickel powders is using electrolysis or electrowinning.  This process involves passing an electrical current through an electrolyte containing dissolved nickel metal and allowing the nickel powder to form on the cathode.  Powders formed in this way are known as electrolytic metal powders and are often very dendritic with complex morphology and hence very conductive.  The particle size and morphology can be controlled by varying certain operating parameters and using additives that affect the deposition of the powder onto the cathode.  

Applications of Nickel Ni powder:
Nickel powder is a black shiny metal powder, which is hard and malleable. In the past few decades, ultra-fine powders and nano-powders due to their special characteristics (such as magnetism, heat resistance, chemical activity, high surface area, better reactivity, enhanced hardness, semiconductor conditions and high chemical activity) And it has been improved. Get a lot of attention. Worldwide, pure nickel is also widely used in coinage systems, sonar and ultrasonic equipment.
 
There are many nickel-based alloys, such as nickel-based superalloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys, nickel-based shape memory alloys and hydrogen storage alloys. These alloys are used in the aerospace industry, automobiles, electronics, shipbuilding and many other fields. Nickel powder is used in powder metallurgy alloys.
 
Introduction of nickel powder for diamond tools (metal-based alloy powder): Metal belt is one of the key factors that determine the quality of diamond saw blades, cutter heads, grinding wheels, thin-wall drill bits and other products. After determining the diamond, the quality of the metal bond is the decisive factor. Both cobalt powder and nickel powder can be used as the main binder, but the price of cobalt powder is higher.
 
In diamond tools, the matrix refers to the packaging, the metal sintered body of diamond, the matrix is usually composed of a variety of metal elements, mainly using low melting point metal powder as a binder, such as nickel powder.
 
Most of the matrix bonding materials for diamond thin-wall drill bits and cutting discs used in the construction industry, oil and gas and other mining diamond drill bits, and carbide drill bits use nickel powder.
 
For metal material processing, most of the tools used for the mechanical grinding of automobiles and motorcycles use diamond abrasives, and most of the matrix materials also use nickel powder. Including carbonyl nickel powder, electrolytic nickel powder and reduced nickel powder.

Storage conditions of Nickel Ni powder:

This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Nickel Ni powder:
We have many different kinds of packing which depends on the nickel Ni powder quantity.
Nickel Ni powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Nickel Ni powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

Bismuth Bi powder CAS 7440-69-9

About Bismuth Bi powder:
Bismuth is a silvery, crystalline, brittle metal when freshly produced and it often presents a pinkish tinge in the air. Bismuth is the most diamagnetic element, and its thermal conductivity is lower than any metal except mercury. It has a high electrical resistance and the highest Hall coefficient. Bismuth powder is a kind of spherical metal nanoparticle with colors from dark grey to black according to different particle sizes and there are no mixed colors or obvious agglomeration.
It has a high electrical resistance and has the highest Hall effect of any metal (that is, the greatest increase in electrical resistance when placed in a magnetic field). Bismuth is stable to oxygen and water but dissolves in concentrated nitric air. All bismuth salts form insoluble compounds when put into water. Feel free to send an inquiry to get the latest price if you would like to buy Bismuth Bi powder in bulk.
The most important ores of bismuth are bismuthimite and bismite. Bismuth occurs naturally as the metal itself and is found as crystals in the sulfides ores of nickel, cobalt, silver and tin. Bismuth is mainly produced as a by-product of lead and copper smelting, especially in the USA. The chief areas where it is mined are Bolivia, Peru’, Japan, Mexico and Canada, but only to the extent of 3.000 tonnes per year. There is no reliable estimate of how much bismuth is available to be mined, but it seems unlikely that there will ever be a shortage of this metal.

Specification of Bismuth Bi powder:

Bismuth powder Purity: 99.5% 

Bismuth powder CAS:7440-69-9

Bismuth powder EINECS: 231-177-4

Bismuth powder APS: 80 nm and as your request
Bismuth powder SSA: 1>7 m²/g
Bismuth powder Morphology: spherical
Bismuth powder Melting point: 271°C
Bismuth powder Boiling point: 1420-1560°C 
 

How is Bismuth Bi powder produced?
It is best to use freshly prepared α-Bi2O3 to produce bismuth powder by reducing it with a mixture of molecular hydrogen and atomic hydrogen at 270°C. It seems that a reduction reaction of α-Bi2 O 3→Bi has taken place without any intermediate phase being formed.
Bismuth powder can be also produced by such processes as the mechanical comminution of bulk bismuth, electrolysis of nitrate and sulfate solutions at high current densities, electrolysis of BiCl3 in methyl alcohol and glacial acetic acid, electrolysis of BiBr3 in molten A1Cl3, reduction of aqueous solutions of bismuth salts with various agents, and cathodic reduction of bismuth oxide.

Application of Bismuth Bi powder:
Bismuth Powder for use in the preparation of pressed and bonded sputtering targets and in Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low-Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications.
Bismuth metal is used in the manufacture of low melting solders and fusible alloys as well as low toxicity bird shot and fishing sinkers. Certain bismuth compounds are also manufactured and used as pharmaceuticals. The industry makes use of bismuth compounds as catalysts in manifacturing acrylonitrile, the starting material for synthetic fibers and rubbers.
Bismuth powder can be used as a lubricant additive: when added 0.1 to 0.3% of Bi nanoparticles to grease in the friction process, the friction surface will form a self-lubricating, self-laminating mask to protect the machine, which will significantly improve the grease performance.
Bismuth powder can be used in the metallurgical industry: can be used as additives during the production of cast iron, steel and aluminum alloy, which can improve the cutting performance of the alloy.
Bismuth powder can be used as magnetic materials: bismuth has a smaller thermal neutron absorption cross-section, lower melting point, and higher boiling point, which enable it to be the heat transfer medium used in a nuclear reactor. 

Storage Condition of Bismuth Bi powder:
The damp reunion will affect Bi powder dispersion performance and using effects, therefore, Bismuth Bi powder should be sealed in vacuum packing and stored in cool and dry room, the Bismuth Bi powder can not be exposure to air. In addition, the Bi powder should be avoided under stress.

Packing & Shipping of Bismuth Bi powder:
We have many different kinds of packing which depends on the Bismuth Bi powder quantity.
Bismuth Bi powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Bismuth Bi powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

Copper Powder Cu Powder CAS 7440-50-8

About Copper Powder Cu Powder:
Since the application of metal copper is very wide, the consumption and production capacity in the metallurgy of toned metallurgy is second, second only to aluminum. The nano-copper powder is well thermally conductive, self-lubricity, and high activity, making it an important role in many areas, such as electrical, mechanics, chemistry, etc. This is derived from the unique basic characteristics of nano-copper powder: surface interfaces effect, quantum dimensional effect and quantum tunnel effect. Macroscopic, copper powder has a high activity, so oxidation occurs in air, soluble in thermal sulfuric acid and nitric acid. At present, the nano-copper powder is often used as catalysts, lubricants, conductive coatings, and is also widely used in engineering structural materials, aerospace and biological engineering.
 
Copper is a very durable and ductile metal that is widely used due to its thermal conductivity and conductivity. Copper can be used in wires or combined with other metals to form different alloys (such as copper, copper and copper). Bronze is formed in conjunction with tin. When exposed to air, the outer copper layer is slowly oxidized into black copper oxide. According to different conditions, it can also form copper carbonate, a green copper roof or copper coating. Feel free to send an inquiry to get the latest price if you would like to buy Copper Powder Cu Powder in bulk.

Product performance of copper powder Cu powder:

Cu powder, CAS 7440-50-8 High purity, uniform particle size distribution, easy to disperse use.

How is Copper Powder Cu Powder produced?
At present, there are many methods for preparing nano-copper powder, which can be divided into physical law and chemical methods.
Preparation of copper powder in physics method has the following methods:
1.Atomization method
The atomization method is mainly to break the metal copper liquid by high-speed airflow, thereby forming a fine droplet and then solidifying into a powder, which has become the main development trend of the current production of copper powder. The atomization method has the advantages of low production cost and small environmental pollution.
2. Mechanical ball mill
The mechanical ball milling method is widely used to prepare copper powder. The mechanism of action of the ball mill is mainly impacts collisions and rolling through metal balls, making it strong shaping deformation and constantly refining. The advantage of this method is that the process is simple, high yield, but is prone to impurities during the production process, and the powder size is not uniform.
3. Gas evaporation method
The mechanism of action of gas evaporation method is mainly to vaporize the metal copper or form a plasma in a lively atmosphere or an inert atmosphere, and then react with the lively atmosphere and cool the condensation, or by collision with the inert atmosphere, cool and condense, thereby forming a fine Copper powder. The copper powder prepared by this method has the advantages of controllable particle size, uniform shape, high purity, good crystallinity.
Preparation of copper powder by the chemical method:
1.Electrodeposition method
The electrodeposition method is to make the copper ions in the cathode in an electrochemical mode to obtain a copper powder. This method is in an important role in the preparation of the metal powder. At present, the electrodeposition method of the metal powder has a DC method, pulse method, and composite total deposition method. Electrolysis is a method of achieving scale production. It is easy to optimize the morphology, particle size, and current efficiency of electrolytic copper powder by changing the electrolysis parameters.
2. Liquid phase reduction method
The liquid phase reduction method is currently the most widely used method for preparing metal nanomaterials. The principle is to reduce the metal cation in the solution under the action of the reducing agent to prepare microns or even nanoscale metal powder by controlling various process parameters. body.
3. Vapor deposition method
The vapor deposition method is a method for reacting one or more gases to precipitate the preparation of ultrafine powder by plasma, laser, or the like. A variety of powders such as metals, alloys, oxides, sulfides, and the like can be prepared by vapor deposition.
4. Sol-gel method
The sol-gel method is mainly by hydrolyzing the metal ionic organic compound or an inorganic compound to form a sol, and then dried, grind, and calcined after solidification, thereby producing a nanofin.
 
Applications of Copper Powder Cu Powder:
Since the application of metal copper is very wide, the consumption and production capacity in the metallurgy of toned metallurgy is second, second only to aluminum. The nano-copper powder is well thermally conductive, self-lubricity, and high activity, making it an important role in many areas, such as electrical, mechanics, chemistry, etc. This is derived from the unique basic characteristics of nano-copper powder: surface interfaces effect, quantum dimensional effect and quantum tunnel effect. Macroscopic, copper powder has a high activity, so oxidation occurs in air, soluble in thermal sulfuric acid and nitric acid. At present, the nano-copper powder is often used as catalysts, lubricants, conductive coatings, and is also widely used in engineering structural materials, aerospace and biological engineering.
 
Copper is a very durable and ductile metal that is widely used due to its thermal conductivity and conductivity. Copper can be used in wires or combined with other metals to form different alloys (such as copper, copper and copper). Bronze is formed in conjunction with tin. When exposed to air, the outer copper layer is slowly oxidized into black copper oxide. According to different conditions, it can also form copper carbonate, a green copper roof or copper coating.

Storage conditions of copper powder Cu powder:

This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of copper powder Cu powder:
We have many different kinds of packing which depends on the copper powder Cu powder quantity.
Copper powder Cu powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Copper powder Cu powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

Iron powder Fe Powder CAS 7439-89-6

About Iron powder Fe Powder:
Iron powder is a whole formed from several other iron particles. The particle diameter is between 20-200 μm. The performance of iron depends on the production method and history of specific iron powder. Iron powder is divided into three types: reduced iron powder, atomized iron powder, electrolytic iron powder. Each type is used in different applications based on its properties. The appearance of reduced iron powder and atomized iron powder is not large.
Iron (FE) atomic sequence 26, relative atomic mass 55.85, silver-gray, density 7.8 g / cm3, melting point 1535 ° C, crystal structure is intimately cubic structure. Because nature is very close to cobalt, the price is very cheap, and the source is very broad. Metal iron powder is iron-gray, and the iron powder has a double effect in the formulation, and one is to form a carburized carbon carbonite with diamond; the other is an alloying of other elements to strengthen the carcass.
The mechanical properties of the iron-based binding agent are higher than the copper-based and aluminum-based binding agents, and the wettability to diamond is also superior to the copper group and an aluminum group binding agent. Pure metal iron is silver white, iron powder is black, this is an optical problem because the surface area of the iron powder is small, there is no fixed geometry, and the crystal structure of the iron block is geometric, so the iron block absorbs a portion of the light, When another part of the visible spectroscope is reflected, it is displayed; the light having no absorbed light is diffusely reflected, and it can enter the human eye, which is black. Feel free to send an inquiry to get the latest price if you would like to buy Iron powder Fe Powder in bulk.

Iron powder Fe powder Physical and chemical properties:

Nano-iron, CAS 7439-89-6, superfine iron ion laser beam through variable current equipment fumed, product powder uniform particle size, narrow particle size distribution, high purity, low carbon, sulfur, phosphorus and other harmful elements, good liquidity, powder antioxidant high capacity, low sintering temperature, high purity, high sphericity, particle size control, black powder, the average particle size of 30-80nm, not covering more than 99.99% purity. High-performance magnetic materials, magnetic fluid, absorbing materials, permeability slurry, nano-directing agent, the idea of absorbing materials.
 

How is Iron powder Fe Powder produced?
The method of manufacturing the powder is usually divided into two categories, namely physical-chemical methods and mechanical pulverization methods, and there are many resent processes, atomization methods and electrolysis methods, and general characteristics of iron powder.
Iron ore reduction method, general characteristics: powder particles are irregular, low loose density, high impurity content, slightly compression. Main use: structural parts, electrodes, metal cutting. cheap price.
Iron scale reduction method, general characteristics: powder particles are irregular, medium loose density, high purity, good compression, high compression, better sinterability. Main use: structural parts, electrodes, metal cutting. cheap price.
Atomization method, general characteristics: powder particles are close to a spherical shape, high lamination density, good fluidity, high composite grid. Main use: high-density structural parts, powder forging parts, filters, and electrodes. The price is more expensive.
Electrolysis, general characteristics: powder particles are dendrites or sheets. Soil is high, the purity is good, the press is good. Main use: high-density structural parts.
Carbonyl method, general characteristics: powder particles are spherical, very fine, high purity. Main use: electronic material. Very expensive.
 
Applications of Iron powder Fe Powder:
Iron powder can be used in the following uses:
Iron powder for magnetic alloys and certain types of steel production; bearings and filter parts; machine parts; hand warmers; high-strength wear parts; magnetic materials; friction parts (mainly auto parts); as fuel.
Place a small bag of iron powder in a bag of food or the like or add the iron powder in a plastic bag. With the principle of iron oxidation, it has a significant effect to apply its oxygen in food preservation and prevention and anti-corrosion.
Iron powder and ferrous salts are both food antioxidants and also food nutrient enhancers.
The problem of solving iron lacks, food producers usually add the iron powder in flour, corn, rice, breakfast cremes
Iron powder mainly uses powder metallurgy mechanical parts, which are the main physical properties of loose density, liquidity, formability, particle shape, etc., which are mainly affected by iron powder production methods and their chemical components.

Storage Condition of Iron powder Fe powder:
Damp reunion will affect Fe powder dispersion performance and using effects, therefore, iron powder Fe powder should be sealed in vacuum packing and stored in cool and dry room, the iron powder Fe powder can not be exposure to air. In addition, the Fe powder should be avoided under stress.

Packing & Shipping of iron powder Fe powder:
We have many different kinds of packing which depend on the iron powder Fe powder quantity.
Iron powder Fe powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Iron powder Fe powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.