Monobasic sodium phosphate monohydrate Cell culture 250GM Go Back


: 10049-21-5

Molecular Formula

: NaH2PO4.H2O

Molecular Weight

: 137.99
Description: Colorless crystals or a white crystalline powder. Its solutions are acid to litmus and effervesce with sodium carbonate
Solubility: Very soluble in water; very slightly soluble in ethanol (96%). practically insoluble in alcohol
Assay (Alkalimetric): 98.0% - 100.5%
Identification (By chemical test): Solution should be slightly acid
Identification (Phosphate 1): A neutral solution should yield yellow precipitate with silver nitrate solution that soluble in 2N nitric acid and 6 N ammonium hydroxide
Identification (Phosphate 2): With ammonium molybdate solution, acidified solutions should yield a yellow precipitate with ammonium molybdate solution which should soluble in 6N ammonium hydroxide
Identification (Sodium): A dense precipitate should form
Identification (By Loss on drying): 11.5% 14.5%
Appearance of solution: Clear and colorless solution
Insoluble Substances: NMT 0.2%
pH (5% aq soln): 4.2 – 4.5
Chloride (Cl): NMT 0.014%
Sulfate (SO4): NMT 0.03%
Heavy metals (as Pb): NMT 0.001%
Aluminium (Al): NMT 0.0002%
Arsenic (As): NMT 0.0002%
Iron (Fe): NMT 0.001%
Aluminium, Calcium and Related Element: The sample solution should not become turbid when rendered slightly alkaline to litmus paper with 6N ammonium hydroxide
Reducing substances: The solution retains a slight red color.
Loss on drying at 130°C: 11.5% - 14.5%
Water: 10.0% - 15.0%
Total aerobic microbial count: NMT 100CFU/gm
Total Yeast and mold count: NMT 100CFU/gm
Bacterial endotoxins: NMT 2.5IU/gm
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