tungsten sulfide
Also known as: EINECS 235-243-3, MFCD00011467, TUNGSTEN SULFIDE, Tungsten Disulfide Micro powder, Tungsten Disulfide Nanoparticles, Tungsten Disulfide dispersion, Tungsten Sulfide, Tungsten disulfide, particle size 0.7-1.1 micrometer, Tungsten sulfide (metals basis), Tungsten(IV) sulfide, Tungsten(IV) sulfide powder, Wolfram(IV)disulfide, bis(sulfanylidene)tungsten, tungsten disuIlfide, tungsten disulfide
tungsten sulfide (CAS 12138-09-9) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula S2W and a molecular weight of 247.97000 g/mol. Key properties include a melting point of 1480ºC and a density of 7.5 g/mL at 25 °C(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 12138-09-9
- Jingsj CID
- J-43478-6
- Molecular Formula
- S2W
- Molecular Weight
- 247.97000 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 1480ºC |
|---|---|
| Density | 7.5 g/mL at 25 °C(lit.) |
| Exact Mass | 247.89500 |
| PSA | 64.18000 |
| LogP | 1.29640 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of tungsten sulfide?
The CAS number of tungsten sulfide is 12138-09-9.
What are the molecular formula and molecular weight of tungsten sulfide?
tungsten sulfide has molecular formula S2W and molecular weight 247.97000 g/mol.
Is tungsten sulfide hazardous?
tungsten sulfide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "tungsten sulfide (CAS 12138-09-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43478-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.