Selenium sulphide

Name: Selenium sulphide
Brand: Vaqora Chemicals
SKU: VQ-015325

About Selenium sulphide

Vaqora Chemicals supplies Selenium sulphide (Synthesis grade), a main-group metal compound registered under CAS number 7488-56-4 with a typical assay of 52–55.5%. Formula S2Se, molecular weight 143.1 g/mol. Alternative names: Selenium disulfide and Selenium disulphide.

In its supplied form it is a reddish brown to bright orange powder. Its solubility is described as practically insoluble in water and inorganic solvents. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 8 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for materials research and chemical synthesis. Our customers for this product work in academic and industrial research.

Standard pack sizes are 100 g, 250 g, 1 kg and 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Selenium sulphide
Catalogue No.	VQ-015325
CAS Number	7488-56-4
Molecular formula	S₂Se
Molecular weight	143.1 g/mol
Exact mass	143.8607
Grade	Synthesis
Purity / assay	52–55.5%
HSN code	28112990
InChIKey	JNMWHTHYDQTDQZ-UHFFFAOYSA-N
SMILES	S=[Se]=S
PubChem CID	24087

Physical properties
Physical form	Powder
Appearance	Reddish brown to bright orange powder
Solubility	Practically insoluble in water and inorganic solvents
H-bond donors / acceptors	0 / 2
TPSA	64.2 Å²
UN number	UN 2657
Synonyms	Selenium disulfide, Selenium disulphide, Selenium(IV) disulfide, Selsun Blue, Lenium, Sulfur selenide, Selenium sulfide (SeS2), Selenium(IV) sulfide, Sul-Blue, Sel-O-Rinse, Selen(IV) sulfid, Selenium sulfide SeS2

Safety & hazard information (GHS)

Toxic

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H300Fatal if swallowed
H301+H331Toxic if swallowed or if inhaled
H301Toxic if swallowed
H330Fatal if inhaled
H331Toxic if inhaled
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P260, P261, P264, P270, P271, P273, P284, P301 + P316, P304 + P340, P316, P319, P320, P321, P330, P391, P403 + P233, 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 Selenium sulphide?

The CAS Registry Number of Selenium sulphide is 7488-56-4. It is also known as Selenium disulfide, Selenium disulphide, Selenium(IV) disulfide.

What is the molecular formula and molecular weight of Selenium sulphide?

Selenium sulphide has the molecular formula S2Se and a molecular weight of 143.1 g/mol.

Which grade and pack sizes of Selenium sulphide can I order?

We supply Selenium sulphide in Synthesis (52–55.5%) grade, in 100 g, 250 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Selenium sulphide?

Yes. Every lot of Selenium sulphide 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 Selenium sulphide be shipped internationally?

Yes. Selenium sulphide is classified as hazardous (UN 2657), 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.