Tungsten(VI) oxide | Yunnan Titan New Materials Technology Co.,Ltd

Mô tả

Tungsten trioxide


IUPAC name[hide] Tungsten trioxide
Other names[hide] Tungstic anhydride Tungsten(VI) oxide Tungstic oxide
Identifiers
CAS number	1314-35-8 ^Y
PubChem	14811
RTECS number	YO7760000
Jmol-3D images	Image 1
Properties
Molecular formula	WO₃
Molar mass	231.84 g/mol
Appearance	Canary yellow powder
Density	7.16 g/cm³
Melting point	1473 °C, 1746 K, 2683 °F
Boiling point	1700 °C, 1973 K, 3092 °F (approx)
Solubility in water	insoluble
Solubility	slightly soluble in HF
Structure
Crystal structure	Monoclinic, mP32, Space group P12₁/c1, No 14
Coordination geometry	Octahedral (W^VI) Trigonal planar (O^2– )
Hazards
MSDS	External MSDS
EU Index	Not listed
Main hazards	Irritant
Flash point	Non-flammable
Related compounds
Other anions	Tungsten trisulfide
Other cations	Chromium trioxide Molybdenum trioxide
Related tungsten oxides	Tungsten(III) oxide Tungsten(IV) oxide
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

ỨNG DỤNG

Tungsten(VI) oxide, also known as tungsten trioxide or tungstic anhydride, WO₃, is a chemical compound containing oxygen and the transition metal tungsten. It is obtained as an intermediate in the recovery of tungsten from its minerals. Tungsten ores are treated with alkalis to produce WO₃. Further reaction with carbon or hydrogen gas reduces tungsten trioxide to the pure metal.

Keywords:Fine ceramics

Phiếu kiểm nghiệm

Product name	Tungsten(VI) oxide		CAS：1314-35-8
Description	Canary yellow powder
Formula	WO₃		99.%
		TEST RESULTS
WO₃		≥
		≤