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Dibasic sodium phosphate dihydrate USP/Ph.Eur 500GM
92611SG500379087131EV
USP/Ph.Eur3790871
10028-24-785794
Na2HPO4.2H2OMay 2022
177.99April 2025
Sr.No.TestResultSpecification
1DescriptionColorless crystals.White powder or colorless crystals.
2SolubilityPassesFreely soluble in water; practically insoluble in ethanol (96%)
3Identification (By chemical test)CompliesSolution should be slightly alkaline
4Identification (By Loss on drying)20.6%19.5% - 21.0%
5Identification (Sodium)CompliesA dense precipitate should form.
6Identification (Phosphate 1)CompliesA yellow precipitate that soluble in 2N nitric acid and in 6N ammonium hydroxide should form.
7Identification (Phosphate 2)CompliesWith ammonium molybdate solution, acidified solutions should yield a yellow precipitate which should soluble in 6N ammonium hydroxide.
8Identification (Phosphate 3)CompliesA yellow colour should develop.
9Assay (on dry basis)98.7%98.0% - 100.5%
10Assay (Dried substance)98.7%98.0% - 101.0% (Na2HPO4)
11Insoluble Substances0.009%NMT 0.4%
12Appearance of solutionPassesClear and colorless solution.
13Reducing substancesPassesThe color of the permanganate should not completely discharge
14Monosodium PhosphateLess than 2.5%2.5% max.
15ChloridesLess than 400ppm400ppm max
16Sulphate (SO4)Less than 0.1%0.1% max
17Arsenic (As)Less than 4ppm4ppm max
18Iron(Fe)Less than 40ppm40ppm max
19Loss on drying,130°C20.6%19.5% - 21.0%
Remarks: THE CAPTIONED MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF USP AND PH.EUR SPECIFICATION.
FINAR provides this analytical report in good faith and to the best of its knowledge. It should not be substituted for the users own raw material quality control.
Tested By
(Chemist - Quality Control)
Approved By
(Head - Quality Control)
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