Arsenic sulphide, 99%+

About Arsenic sulphide, 99%+

Arsenic sulphide is a main-group metal compound in Synthesis grade carrying the CAS registry number 1303-33-9 at a purity of ≥99%. The compound has the formula As2S3, corresponding to a molecular weight of 246.0 g/mol. The IUPAC name is 2,4,5-trithia-1,3-diarsabicyclo[1.1.1]pentane. It is also known as Arsenic trisulfide or Arsenic(III) sulfide.

It is supplied as an orange to brown powder. Literature values give a melting point of 310 °C and a density of 3.43 g cm3. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 7 hazard statements. Review the Safety Data Sheet before use.

Typical applications include dyes and pigments manufacture, electronics and thin films, optics and photonics and ceramics and glass. It is used across academic and industrial research.

We offer Arsenic sulphide in 5 g, 25 g, 100 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Dyes & pigments manufacture
Electronics & thin films
Optics & photonics
Ceramics & glass

Industries

Specifications & identifiers

Chemical identifiers
Product name	Arsenic sulphide, 99%+
Catalogue No.	VQ-015159
CAS Number	1303-33-9
IUPAC name	2,4,5-trithia-1,3-diarsabicyclo[1.1.1]pentane
Molecular formula	As₂S₃
Molecular weight	246 g/mol
Exact mass	245.7594
Grade	Synthesis
Purity / assay	≥99%
HSN code	28309010
InChIKey	UKUVVAMSXXBMRX-UHFFFAOYSA-N
SMILES	S1[As]2S[As]1S2
PubChem CID	71586773

Physical properties
Physical form	Powder
Appearance	Orange to brown powder
Melting point	310 °C
Density	3.43 g cm3
H-bond donors / acceptors	0 / 3
TPSA	75.9 Å²
Synonyms	Arsenic trisulfide, Arsenic(III) sulfide, Orpiment, Sulphuret of arsenic, Arsenic trisulphide, Diarsenic trisulfide, Arsenic sulfide (As2S3), Arsenic sesquisulfide, Diarsenic trisulphide, Arsenic sesquisulphide, Yellow arsenic sulfide, Arsenic Yellow

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H311Toxic in contact with skin
H319Causes serious eye irritation
H350May cause cancer
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure

Precautionary statements: P203, P260, P262, P264, P264 + P265, P270, P280, P301 + P316, P302 + P352, P305 + P351 + P338, P308 + P316, P316, P318, P319, P321, P330, P337 + P317, P361 + P364, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Arsenic sulphide, 99%+?

The CAS Registry Number of Arsenic sulphide, 99%+ is 1303-33-9. It is also known as Arsenic trisulfide, Arsenic(III) sulfide, Orpiment.

What is the molecular formula and molecular weight of Arsenic sulphide, 99%+?

Arsenic sulphide, 99%+ has the molecular formula As2S3 and a molecular weight of 246 g/mol. Its IUPAC name is 2,4,5-trithia-1,3-diarsabicyclo[1.1.1]pentane.

Which grade and pack sizes of Arsenic sulphide, 99%+ can I order?

We supply Arsenic sulphide, 99%+ in Synthesis (≥99%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Arsenic sulphide, 99%+?

Yes. Every lot of Arsenic sulphide, 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Arsenic sulphide, 99%+ be shipped internationally?

Yes. Arsenic sulphide, 99%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.