Tungsten trioxide

Agent Name
Tungsten trioxide
CAS Number
1314-35-8
Formula
O3-W
Major Category
Metals
Tungsten trioxide formula graphical representation
Synonyms
C.I. 77901; CI 77901; Tungsten Blue; Tungsten oxide (WO3); Tungsten(VI) oxide; Tungstic acid; Tungstic acid anhydride; Tungstic anhydride; Tungstic oxide; Wolframic acid, anhydride; [ChemIDplus]
Category
Metals, Inorganic Compounds
Description
Canary yellow solid; [Merck Index] Blue or brown odorless powder; [MSDSonline] Insoluble in water; [Hawley]
Sources/Uses
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]
Comments
An irritant; [MSDSonline]
Biomedical References
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Exposure Assessment

TLV (ACGIH)
3 mg/m3, as W, respirable particulate matter

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure:

Activities

Activities with risk of exposure: