Product Details :
Product Name | : Monobasic Sodium Phosphate Dihydrate |
C.A.S. No. | :13472-35-0 |
Molecular Formula | : NaH2PO4.2H20 |
Molecular Weight | : 156.01 g/mol |
SPECIFICATION | IP | BP | USP |
Description | A white powder or colorless crystals. | White, slightly deliquescent crystals or granules. | White, slightly deliquescent crystals or granules. |
Solubility | - | Very soluble in water and very slightly soluble in ethanol (96 %). | - |
Identification
|
A: It gives reaction of phosphates. B: It gives reaction of sodium salts.
| A : 10 % solution is slightly acidic B: It gives reaction of Phosphates. C: It gives reaction of Sodium Salts. |
A : Gives reaction of phosphates B: Gives reaction of sodium salts.
|
Appearance of solution | - | Solution is clear & Colorless | - |
pH | 4.1 - 4.5 | 4.2 - 4.5 | 4.1 - 4.5 |
Insoluble Sub. | NMT 0.2 % | - | NMT.0.2 % |
Chloride | NMT 140 ppm | NMT 200 ppm | NMT 140 ppm |
Sulphate | NMT 1500 ppm | NMT 300 ppm | NMT 1500 ppm |
Al , Ca & related -element | Not became turbid when rendered slightly alkaline to litmus paper. | - | Not became turbid when rendered slightly alkaline to litmus paper |
Arsenic | NMT 8 ppm | NMT 2 ppm | NMT 8 ppm |
Heavy metals | NMT 20 ppm | - | NMT 20 ppm |
Water by KF | 18.0 % -26.5 % | - | 18.0 % -26.5 % |
Organic volatile impurities | - | - | Meets the requirement |
Residual Solvents | - |
| Meets the requirement |
Iron | - | NMT 10 ppm | - |
Reducing substance | - | The color of the permanganate is not completely discharged. | - |
LOD ( at 130oC ) | - | 21.5 %-24.0 % | - |
Assay (on dry basis) | 98.0 % - 103.0 % | 98.0 % - 100.5% | 98.0%-103.0% |
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