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Tungsten trioxide Structure

Tungsten trioxide

Chemical Properties

Melting point 1470-1475 °C
Boiling point 1837°C (estimate)
Density  7.16 g/mL at 25 °C(lit.)
storage temp.  Room Temperature
form  powder
color  Yellow to greenish-yellow
Specific Gravity 7.16
Water Solubility  insoluble
Merck  14,9817
Exposure limits ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
InChIKey ZNOKGRXACCSDPY-UHFFFAOYSA-N
CAS DataBase Reference 1314-35-8(CAS DataBase Reference)
FDA UNII 940E10M08M
NIST Chemistry Reference Tungsten trioxide(1314-35-8)
EPA Substance Registry System Tungsten trioxide (1314-35-8)

Safety

Symbol(GHS)
Signal wordWarning
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
Hazardous Substances Data 1314-35-8(Hazardous Substances Data)
NFPA 704:
0
1 0

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