CAS No 1314-35-8 , trioxotungsten Search by region : China

Name: trioxotungsten
Synonyms: 1314-35-8; Tungsten(VI) oxide;TUNGSTEN TRIOXIDE;trioxotungsten; Tungsten Blue; Tungstic acid anhydride; Tungstic anhydride; Tungstic oxide; trioxotungsten;
CAS Registry Number:1314-35-8
Melting Point: 1470-1475 ºC
Flash Point: °C
Boiling Point: ~1700ºC
Density: 7.16
Safety Statements: R22;R36/37/38
Hazard Symbols: Xn: Harmful;
Flash Point: °C
EINECS: 215-231-4
Molecular Weight: 231.8382
InchiKey: ZNOKGRXACCSDPY-UHFFFAOYSA-N
InChI: InChI=1S/3O.W
Risk Statements: S26;S37/39
Molecular Formula: O₃W
Molecular Structure:

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References of trioxotungsten

Title: Tungsten Trioxide
CAS Registry Number: 1314-35-8
CAS Name: Tungsten oxide (WO3)
Synonyms: tungstic anhydride
Molecular Formula: O3W
Molecular Weight: 231.84
Percent Composition: O 20.70%, W 79.30%
Line Formula: WO3
Literature References: Prepn from sodium tungstate: Hein, Herzog, in Handbook of Preparative Inorganic Chemistry vol. 2, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1965) pp 1423-1424. Review of toxicology and human exposure: Toxicological Profile for Tungsten (PB2006-100007, 2005) 203 pp.
Properties: Canary yellow, heavy powder; dark orange when heated, regaining the original color on cooling. Insol in water. Sol in caustic alkalies; very slightly sol in acids.
Use: Manuf tungstates which are used for x-ray screens and for fireproofing fabrics.