Arsenic Sulfide As2S3 Powder CAS 1303-32-8

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About Arsenic Sulfide As2S3 Powder:
Arsenic trisulfide is an inorganic compound, the chemical formula is As2S3, also known as arsenic sulfide, ore is called female yellow, realgar (arsenic disulfide) co-mineral, a common “mineral mandarin duck”.Pure arsenic trisulfide is lemon yellow, belongs to monoclinic crystal system, is composed of (As2S3) N layered lattice, melting into red liquid at 300℃, boiling at 707℃ without decomposition. Arsenic trisulfide is insoluble in water and insoluble in inorganic acids, but soluble in sodium sulfide, alkali metal hydroxides and carbonate. To be toxic.
Na3ASS3 is called sodium thioarsenite, and it can also exist in the form of the macerate NaASS2.Thioarsenite acid is unstable and easily decomposes
Arsenic trisulfide is a semiconductor with a direct bandgap of 2.7 eV. Its wide-bandgap makes it infrared transparent between 620 nm and 11 μm.
As2S3 occurs in both crystalline and amorphous forms. Both forms have polymeric structures consisting of triangular cone As(III) centers connected by sulfide centers. The sulfide center has double coordination with two arsenic atoms. In the crystalline form, the compound has a ruffled sheet structure. The bonds between the sheets are made up of van der Waals forces. Crystalline forms are usually found in geological samples. Amorphous As2S3 does not have a lamellar structure, but the cross-linking degree is higher. Feel free to send an inquiry to get the latest price if you would like to buy Arsenic Sulfide As2S3 Powder in bulk.

English name: Arsenic (II) sulfide
English alias: Arsenic Disulfide; Arsenic monosulfide; C.I. 77085; Arsenic monosulfide; dithioxodiarsane
Arsenic Sulfide CAS: 1303-32-8
Arsenic Sulfide Molecular formula: As2S3
Arsenic Sulfide Molecular weight: 244.04
Arsenic Sulfide: It contains 29.97% sulfur and 70.03% arsenic.


How is Arsenic Sulfide As2S3 Powder produced?
Arsenic trisulfide can be prepared by adding hydrogen sulfide to the hydrochloric acid solution of arsenic trioxide or by eutectic fusion of arsenic and sulfur. Arsenic trioxide can also be prepared by the following method
From the elements
Amorphous As2S3 is obtained by the fusion of elements at 390°C. Rapid cooling of the reaction melts to the glass. The reaction can be expressed by a chemical equation:
2 As + 3 S→As2S3
Water precipitation
When an aqueous solution containing As(III) is treated with H2S, As2S3 is formed. This reaction has been used in the past to analyze and determine arsenic. The result is precipitated As2S3, which is then weighed.As2S3 can even precipitate in 6M HCl.AS2S3 is very insoluble, so it is not toxic.
Applications of Arsenic Sulfide As2S3 Powder:
These properties of arsenic trisulfide can be used for the separation and identification of arsenic compounds. In addition, it has the following applications:
Arsenic trisulfide can be used as a pigment, reducing agent and medicine.
As As2S3 has a high refractive index of 2.45 and higher Knoop hardness than organic photoresists, it has been studied to fabricate photonic crystals with a full photonic bandgap. Advances in laser plate-making technologies, such as 3D direct laser engraving (3D DLW) and chemical wet etching, enable AS2S3 to be used as a photoresist to prepare 3D nanostructures
AS2S3 and AS4S4 have been studied as treatments for acute promyelocytic leukemia (APL).
Amorphous arsenic trisulfide is made for use as chalcogenide glass in infrared optics. It is transparent between 620 nm and 11 μm.
Arsenic trisulfide glass is more resistant to oxidation than crystalline arsenic trisulfide, thus minimizing toxicity.

Storage Condition of Arsenic Sulfide As2S3 Powder:
The damp reunion will affect arsenic sulfide As2S3 powder dispersion performance and using effects, therefore, arsenic sulfide As2S3 powder should be sealed in vacuum packing and stored in cool and dry room, the arsenic sulfide As2S3 powder can not be exposure to air. In addition, the arsenic sulfide As2S3 powder should be avoided under stress.

Packing & Shipping of Arsenic Sulfide As2S3 Powder:
We have many different kinds of packing which depend on the arsenic sulfide As2S3 powder quantity.
Arsenic sulfide As2S3 powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Arsenic sulfide As2S3 powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.
Arsenic Sulfide As2S3 Powder CAS 1303-32-8插图

Arsenic Sulfide As2S3 Powder Properties

Other NamesArsenic(3+) trisulfide, arsenic sulphide, arsenic; sulfane,
diarsenic trisulfide, arsenic(3+) trihydride trisulfide, arsenic trisulfide,
Orpiment, CAS 12612-21-4, EC 235-720-6
CAS No.1303-32-8
Compound FormulaAs2S3
Molecular Weight246.0382
AppearanceBright yellow to orange crystals or powder
Melting Point310 °C, 583 K, 590 °F
Solubility in waterN/A
Density3.43 g/cm3
Particle Size-100mesh
Boling point707 °C, 980 K, 1305 °F
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young’s ModulusN/A
Exact Mass245.7594 g/mol
Monoisotopic Mass 245.7594 g/mol

Arsenic Sulfide As2S3 Powder Health & Safety Information

Safety WarningDanger
Hazard StatementsH301 + H311 + H331-H410
Flashing pointN/A
Hazard CodesT,N
Risk Codes23/25-50/53
Safety Statements20/21-28-45-60-61
RTECS NumberCG2638000
Transport InformationUN 1557 6.1/PG II
WGK Germany3
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