diSodium hydrogen phosphate anhydrous BP 500GM Go Back

CASR

: 7558-79-4

Molecular Formula

: Na2HPO4

Molecular Weight

: 141.96
Specifications  
Appearance: A white or almost white powder, hygroscopic
Solubility: Soluble in water, practically insoluble in ethanol (96%).
Identification A (By Chemical test): Solution should slightly alkaline.
Identification B (By Loss on drying): Not more than 1.0%
Identification C (By Chemical test): A yellow color should develop
Identification D (By Chemical test): A dense white precipitate should form.
Appearance of solution: Solution should be clear and colorless.
Reducing substances: The colour of the permanganate should not be completely discharge
Monosodium Phosphate: NMT 2.5%
Chlorides: NMT 200ppm
Sulphate (SO4): NMT 500ppm
Arsenic (As): NMT 2ppm
Iron(Fe): NMT 20ppm
Loss on drying (105 °C, 4 hr): Not more than 1.0%
Assay (Dried substance): 98.0% - 101.0%
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