Home Categories Inorganic chemistry Tungsten trioxide
A7665012

Tungsten trioxide , 99.8%metalsbasis , 1314-35-8

Synonym(s):
Tungsten trioxide nanowires;Tungstic anhydride

CAS NO.:1314-35-8

Empirical Formula: O3W

Molecular Weight: 231.84

MDL number: MFCD00011466

EINECS: 215-231-4

Pack Size Price Stock Quantity
25G RMB34.40 In Stock
100G RMB97.60 In Stock
500G RMB377.60 In Stock
2.5KG RMB1608.80 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 1470-1475 °C
Boiling point: 1837°C (estimate)
Density  7.16 g/mL at 25 °C(lit.)
storage temp.  Room Temperature
solubility  insoluble in H2O, organic solvents; slightly soluble in acid solutions; soluble in alkaline solutions
form  powder
Specific Gravity 7.16
color  Yellow to greenish-yellow
Water Solubility  insoluble
Merck  14,9817
crystal system Monoclinic
Space group P21/a
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.72850.75170.38359090.9900.21

Exposure limits ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
InChIKey ZNOKGRXACCSDPY-UHFFFAOYSA-N

Description and Uses

It is used in tungsten and tungstate manufacturing which are used as X-ray screens and for fire proofing fabrics. It is used as a ceramic pigment. Nanowires of Tungsten (VI) oxide are capable of absorbing a higher percentage of the sun radiation since it absorbs blue light.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312a-P330-P501a
Hazard Codes  Xn
Risk Statements  22-36/37/38
Safety Statements  26-36-37/39
WGK Germany  -
RTECS  YO7760000
21
TSCA  Yes
HS Code  28259012
Toxicity rat,LD50,oral,1059mg/kg (1059mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)BEHAVIORAL: EXCITEMENTBEHAVIORAL: MUSCLE WEAKNESS,Hygiene and Sanitation Vol. 31(7-9), Pg. 197, 1966.

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