SODIUM DIHYDROGEN ORTHOPHOSPHATE DIHYDRATE AR

Confirms to BP, USP
Sodium phosphate monobasic dihydrate

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Article No.
05858
Grade
AR
Purity
99%
CAS No.
13472-35-0
Molecular Formula
NaH2PO4.2H2O
Molecular Weight
156.01
H.S. Code
2835.2200
Shelf Life
60 Months
MSDS
 

 

Physical Properties

Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
4.2 - 4.5
Melting point/ Freezing point [°C]
60°C
Density [g/cm3]
1.92
Solubility in water [% weight]
Soluble in water

Packings

  • 1PW1200500

    500 g (00500)

  • 1PW1204000

    5000 g (05000)

 

Specifications

Appearance Colorless crystals or white crystalline powder
Assay 99.0 - 100.5%
Identity (acc. to pharmacopoeias) Passes test
Appearance of solution Passes test
Insoluble matter in water Max 0.01%
pH (1% solution in water) 4.1-4.7
pH (5% solution in water; 20°C) 4.2-4.5
pH (5.7% solution in water) 4.1-4.5
Chloride (Cl) Max 0.001%
Sulphate (SO4) Max 0.005%
Aluminium, calcium and related elements Passes test
Substance reducing KMnO4 (as O) Passes test
Arsenic (As) Max 0.0002%
Calcium (Ca) Max 0.002%
Iron (Fe) Max 0.001%
Heavy metal (as Pb) Max 0.0005%
Magnesium (Mg) Max 0.001%
Potassium (K) Max 0.005%
Loss on drying (at 130°C) 21.5 - 24.0%

Revision Date : 10-Aug-2022
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