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PHOSPHOTUNGSTIC ACID AR

PHOSPHOTUNGSTIC ACID AR

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Description

Reagent for microscopy.
Tungstophosphoric acid
Article No. 05266 Grade AR
Purity CAS No. 12501-23-4
Molecular Formula H3[P(W3O10)4]xH2O Molecular Weight 2880.17
H.S. Code 2811.1990 Shelf Life 60 Months

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 to yellow to beige to grey powder or crystals
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%

Packings
25 g 00025
100 g 00100

Safety Information
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

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