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Phosphotungstic acid 44-hydrate Structure

Phosphotungstic acid 44-hydrate

Chemical Properties

Melting point 89℃ [HAW93]
RTECS  TH5650000
storage temp.  Inert atmosphere,2-8°C
solubility  very soluble in H2O; soluble in ethanol, ethyl ether
form  Powder
color  White to pale yellow
Water Solubility  practical insoluble
Merck  14,7364
Exposure limits ACGIH: TWA 3 mg/m3
EPA Substance Registry System Tungsten hydroxide oxide phosphate (12067-99-1)

Safety Information

Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45-24/25
RIDADR  UN 3264 8/PG 2
WGK Germany  3
TSCA  Yes
HazardClass  5.1
PackingGroup  III
HS Code  28112900
Toxicity rat,LD50,oral,3300mg/kg (3300mg/kg),Toxicology and Applied Pharmacology. Vol. 42, Pg. 417, 1977.

MSDS

Usage And Synthesis

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