Home Chemnovo Acids-Inorganic Phosphotungstic Acid Reagent
02023
Phosphotungstic Acid Reagent
Reagent for microscopy. dodeca-tungsto phosphoric acid ((anhydr. basis)
CAS : 12501-23-4
HS Code : 2811.19900
Molecular Formula : H3[P(W3O10)4]xH2O
Molecular Weight : 2880.17
Physical Properties
Physical state at 20 °C
Solid |
Colour
White to yellowish |
Odour
Odorless |
Melting point/ Freezing point [°C]
95 °C |
Solubility in water [% weight]
200 g/100 g water |
Specifications
Appearance
White or yellowish green crystalline powder |
Chloride (Cl)
Max 0.005% |
Sulphate (SO4)
Max 0.01% |
Total nitrogen (N)
Max 0.002% |
Lead (Pb)
Max 0.002% |
Iron (Fe)
Max 0.002% |
Potassium (K)
Max 0.02% |
Copper (Cu)
Max 0.001% |
Sodium (Na)
Max 0.02% |
Loss on ignition (at 750°C)
Max 17% |
Safety Information and Hazard Symbols
Symbol: GHS05
Signal Word: Danger
UN No.: 3260
IMCO Class No.: 8
Packing Group: II
Hazardous Statement: H314
Precaution Statement: P280-P305 + P351 + P338-P310
×