Phosphotungstic acid hydrate

English Name: phosphotungstic acid hydrate; Tungstophosphoric acid hydrate； Dodecatungstophosphoric acid hydrate

Other names: phosphotungstic acid hydrate; Tungsten phosphate hydrate; 12 tungstophosphoric acid hydrate

CAS No.: 12501-23-4

H3[P(W3O10)4] · xH2O=2880.05 (anhydrous basis)

Grade: ar

Clarity test: acceptable

Heavy metals (calculated by Pb): ≤ 0.002%

Chloride: ≤ 0.03%

Ammonium salt: ≤ 0.02%

Sulfate: ≤ 0.02%

Iron: ≤ 0.002%

Water insoluble matter: ≤ 0.02%

Sodium: ≤ 0.02%

Calcium: ≤ 0.02%

Nitrate: ≤ 0.01%

Physicochemical  Properties: white or yellowish green crystal or crystalline powder. Slightly weathered. Soluble in about 0.5 parts of water, soluble in ethanol and ether

Purpose: biochemical research. Various alkaloids, nitrogenous bases, phenols, proteins, peptones, amino acids, urea acids, urea, blood and sugar reagents. Biological staining.

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