Home Categories Phosphotungstic acid hydrate
A6621212

Phosphotungstic acid hydrate , AR , 12501-23-4

Synonym(s):
Phosphotungstic acid;Tungstophosphoric acid;Tungstophosphoric acid hydrate

CAS NO.:12501-23-4

Empirical Formula: H6O8PW

Molecular Weight: 348.86

MDL number: MFCD00149915

EINECS: 603-020-3

Pack Size Price Stock Quantity
25G RMB68.00 In Stock
100G RMB226.40 In Stock
500G RMB816.00 In Stock
2.5kg RMB3007.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

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.  room temp
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)

Description and Uses

Phosphotungstic acid hydrate may be used as a staining agent for the transmission electron microscope (TEM) imaging of cetyltrimethylammonium bromide (CTAB) coated gold nanorods.
It may be used in the preparation of:

  • Phosphotungstic acid doped ormosil hybrid networks.
  • Niobia supported phosphotungstic acid (PTA) catalysts.
  • Titanium dioxide (TiO2) nanoparticles /phosphotungstic acid (HPW) films.

Safety

Symbol(GHS) 
GHS05,GHS07,GHS09
Signal word  Danger
Hazard statements  H302-H314-H411
Precautionary statements  P260-P273-P280-P301+P312-P303+P361+P353-P305+P351+P338
Hazard Codes  C,Xi
Risk Statements  34-36/37/38
Safety Statements  26-36/37/39-45-24/25-37/39-36
RIDADR  UN 3260 8/PG 3
WGK Germany  3
RTECS  TH5650000
3-10-23
TSCA  Yes
HS Code  2811 19 80
HazardClass  8
Toxicity LD50 orally in Rabbit: 3300 mg/kg

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