Tungsten disulfide (CAS 12138-09-9) — formula S2W, molecular weight 248.0; category inorganic chemicals.
Tungsten disulfide (CAS 12138-09-9) is a chemical raw material in the inorganic chemicals category. Its molecular formula S2W comprises 2 S, 1 W atoms. Its molecular weight is about 248.0. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 12138-09-9 |
|---|---|
| Molecular Formula | S2W |
| Molecular Weight | 248.0 |
| Applications | catalysts, electronics, and metal processing |
| Category | Inorganic Chemicals |
Documented applications: catalysts, electronics, and metal processing.
Tungsten disulfide is an inorganic compound with CAS registry number 12138-09-9 and molecular formula S2W (molecular weight 248.0), belonging to the inorganic chemicals segment of chemical raw materials.
CAS number: 12138-09-9
Its molecular formula S2W comprises 2 S, 1 W atoms.
Also known as: Tungsten disulfide · 二硫化钨
Category: inorganic chemicals
The CAS registry number of Tungsten disulfide is 12138-09-9.
Molecular formula S2W, molecular weight 248.0.
It is also registered under: Tungsten disulfide, 二硫化钨.
Recorded applications: catalysts, electronics, and metal processing.
Category: Inorganic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Tungsten disulfide (CAS 12138-09-9), compiled from public chemistry databases.
| CAS Registry Number | 12138-09-9 |
|---|---|
| PubChem CID | 82938 |
| Molecular formula | S2W |
| IUPAC name | bis(sulfanylidene)tungsten |
| Molecular Weight | 248.0 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 247.895076 |
| Monoisotopic Mass | 247.895076 |
| Topological Polar Surface Area | 64.2 |
| Heavy Atom Count | 3 |
Tungsten disulfide; tungsten(IV) sulfide; disulfidotungsten; CHEBI:30521; (WS2); Tungsten Sulphuratum; RefChem:57431; 12138-09-9; Tungsten disulphide; Tungsten sulfide (WS2); bis(sulfanylidene)tungsten; MFCD00011467; EINECS 235-243-3; Bulk WS2 powder; Bis(sulfido)tungsten; Monolayer WS2 Powder
| GHS notification summary | 42.8% (59 / 138) |
|---|
| GHS notification summary | 42.8% (59 / 138) |
|---|---|
| Reported hazard statements | H315 (57.2%), H319 (57.2%), H335 (57.2%) |
This chemical does not meet GHS hazard criteria for 42.8% (59 of 138) of reports.
H315 (57.2%): Causes skin irritation [Warning Skin corrosion/irritation]
Tungsten disulfide · CAS 12138-09-9 · S2W.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 二硫化钨