S2W
248 g/mol
Industrial ChemicalWarning
Tungsten disulfide
CAS12138-09-9EC235-243-3
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
solid and aerosol lubricant
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Pesticide and industrial disinfectant
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Tungsten disulfide (CAS 12138-09-9) is 2830.90.
HS code (international, 6-digit)
2830.90
EU CN code (8-digit)
2830 90 85
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
bis(sulfanylidene)tungsten
InChIKey
ITRNXVSDJBHYNJ-UHFFFAOYSA-N
SMILES
S=[W]=S
Synonyms (30)
- (WS2)
- Bis(sulfido)tungsten
- Bulk WS2 powder
- CVD Method Monolayer WS2
- Monolayer WS2 Dispersion
- Monolayer WS2 Powder
- Tungsten Sulphuratum
- Tungsten disulfide
- Tungsten disulfide powder
- Tungsten disulfide, Crystal
- Tungsten disulphide
- Tungsten sulfide (WS2)
- bis(sulfanylidene)tungsten
- disulfidotungsten
- dithioxotungsten
- tungsten(IV) sulfide
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