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12501-23-4

Name Phosphotungstic acid hydrate
CAS 12501-23-4
EINECS(EC#) 235-087-6
Molecular Formula H6O8PW
MDL Number MFCD00149915
Molecular Weight 348.86
MOL File 12501-23-4.mol
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Chemical Properties

Appearance Crystalline
Melting point  ~95 °C(lit.)
Boiling point  107.9℃[at 101 325 Pa]
density  3.88[at 20℃]
vapor pressure  19.2hPa at 20℃
storage temp.  0-6°C
form  Solid
color  White
PH 1.3 (20g/l, H2O, 20℃)
Water Solubility  soluble
Sensitive  Hygroscopic
Exposure limits ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
Stability: hygroscopic
CAS DataBase Reference 12501-23-4(CAS DataBase Reference)

Safety Data

Hazard Codes  C,Xi
Risk Statements 
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S24/25:Avoid contact with skin and eyes .
S37/39:Wear suitable gloves and eye/face protection .
S36:Wear suitable protective clothing .
RIDADR  UN 3260 8/PG 3
WGK Germany  3
RTECS  TH5650000
F  3-10-23
TSCA  Yes
HazardClass  8
HS Code  28111990
Toxicity
LD50 orally in Rabbit: 3300 mg/kg

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