Tungsten(VI) oxide

Independent reference data for Tungsten(VI) oxide (CAS 1314-35-8), compiled from public chemistry databases.

Registry identifiers across databases

Computed descriptors

Physicochemical values on record

Documented uses on record

Used to make tungstates (used for x-ray screens and fireproofing fabrics), alloys, and yellow pigment in ceramics; [HSDB] Used as a catalyst for synthesis of organometallic compounds; [Ullmann]Metal Preparation and Pouring [Category: Foundry]

Synonyms and trade names

TUNGSTEN TRIOXIDE; 1314-35-8; Tungsten oxide (WO3); Tungstic anhydride; Tungstic oxide; Tungsten Blue; Tungstic acid anhydride; Wolframic acid, anhydride; CI 77901; C.I. 77901; DTXSID7032262; 940E10M08M; RefChem:1100596; 215-231-4; DTXCID5012262; Tungsten(VI) oxide

Regulatory listings held on file

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS TUNGSTEN OXIDE
GHS notification summary	41.5% (333 / 803)

GHS hazard classification

GHS notification summary	41.5% (333 / 803)
Reported hazard statements	H302 (58.5%), H315 (57.3%), H319 (57.3%), H335 (57.3%)

This chemical does not meet GHS hazard criteria for 41.5% (333 of 803) of reports.

H302 (58.5%): Harmful if swallowed [Warning Acute toxicity, oral]

What the public record says

Tungsten(VI) oxide · CAS 1314-35-8 · O3W. UNII 940E10M08M. Melting Point: 1472 °C; Melting Point: 1473 °C; Density: 7.2.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.