Amorphous Boron B Powder CAS 7440-42-8

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About Amorphous Boron B Powder:
Boron powder is a black or dark brown powder, which can react with fluorine at room temperature and will not be corroded by alkali and hydrofluoric acid aqueous solutions. Boron powder is also called amorphous boron. Boron has a high mass calorific value and volume calorific value. It is a light brown to gray-black powder with relatively active chemical properties, but it is relatively stable at room temperature and will be oxidized when the temperature reaches 300 degrees Celsius. The ignition level is very high, requiring 700 degrees Celsius to ignite. Boron powder can react with oxygen, nitrogen and sulfur, or it can directly combine with certain metals to form certain borides. We supply boron powder for sale.

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Amorphous boron powder is a brown powder; amorphous boron is a brown powder. Amorphous boron is a brown powder. Crystalline boron is black, very hard (approximately 9.5 at Mohs hardness), and has a poor conductor at room temperature. Element boron is used as a dopant in the semiconductor industry, and boron compounds play an important role as light structural materials, pesticides and preservatives, and chemical synthesis reagents. Feel free to send an inquiry to get the latest price if you would like to buy Amorphous Boron B Powder in bulk.

Properties of Amorphous Boron B Powder :
Elemental boron CAS 7440-42-8 is a black or dark brown powder, pure boron powder is 95%. When it is oxidized in the air, it will prevent the internal boron from continuing to oxidize due to the formation of a boron trioxide film. It can react with fluorine at normal temperature and is not corroded by hydrochloric acid and hydrofluoric acid aqueous solution. Boron is insoluble in water, powdered boron is soluble in boiling nitric acid and sulfuric acid, and most molten metals such as copper, iron, manganese, aluminum, and calcium.

Amorphous Boron Powder MF:B

 Amorphous Boron Powder MW:10.81

 Amorphous Boron Powder Melting point:2300 ℃ ±2  ℃

 Amorphous Boron Powder Sublimation temperature:2550  ℃

 Amorphous Boron Powder Relative density:2.34-2.37

 Amorphous Boron Powder Solubility: Insoluble in water, hydrochloric acid, ethanol and ether,  soluble in cold 

 concentrated alkali solution decompose into hydrogen, by concentrated sulfuric acid, nitric acid oxidation into boric acid.


 Product features of Amorphous Boron powder:

  The quality is stable and reliable.
  This product can be in stored for a long time.
  According to user requirements, processing customized different particle size of products.

Technical Parameter of Amorphous Boron B powder :

Chemical CompositionBPSSiFeMgOC
Test Result (%)950.


How is Amorphous Boron B Powder produced?
There are two main techniques to obtain pure boron powder: via-gas and magnesiothermic reaction. The first technique uses hydrogen gas to reduce gaseous boron trichloride (BCl3), whereas the latter uses a combination of heat and magnesium to reduce the boron trioxide (B2O3) to elemental boron.

Applications of Amorphous Boron B Powder:
Boron powder is commonly used in metal smelting, electronic product manufacturing, ceramic manufacturing, chemical industry and nuclear industry, etc. The specific functions of boron nitride are as follows:

1. Boron powder can be used to make various boron-containing compounds, used as raw materials for the production of boron fibers, and important raw materials for the production of high-purity boron halide;

2. Boron powder is added in the form of a compound as a gas scavenger for the smelting of special alloy steel or molten steel;

3. Boron powder is used as high-energy fuel for rocket spacecraft,

4. Boron powder is used as the ignition pole of the ignition tube in the electronics industry;

5. Boron powder replaces precious or scarce metals;

6. Boron powder is used as a protective material for the atomic energy industry and the control rod in the atomic reactor;

7. Boron powder also can be used as a catalyst for organic chemical reactions.

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

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



Amorphous Boron Powder Properties

Other NamesBoron Powder, amorphous boron
CAS No.7440-42-8
Compound FormulaB
Molecular Weight10.811
AppearanceDark Brown
Melting Point2079 °C
Boiling Point2550 °C
Density2.34 g/cm3
Solubility in H2ON/A
Electrical Resistivity1.8 x 1012 microhm-cm @ 0 °C
Poisson’s RatioN/A
Specific Heat0.245 Cal/g/K @ 25 °C
Thermal Conductivity0.274 W/cm/K @ 298.2 K
Thermal Expansion5–7 µm·m-1·K-1 @ 25 °C
Young’s ModulusN/A

Amorphous Boron Powder Health & Safety Information

Signal WordWarning
Hazard StatementsH228-H302+H332-H335
Flash PointNot applicable
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberED7350000
Transport InformationDOT
WGK GermanyNWG
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