Sodium Phosphate Monobasic Dihydrate, 98-100.5%
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Sodium Phosphate Monobasic Dihydrate, 98-100.5%
Sodium Phosphate Monobasic Dihydrate
Meets analytical specification of BP, FCC, Ph. Eur., USP, E 339, 98-100.5% (calc. to the dried substance)
Synonym(s)- Sodium dihydrogen phosphate dihydrate
| Property |
Value |
| Assay (calculated to the dried substance)
| 98.0 - 100.5%
|
| Assay (calculated on the anhydrous basis)
| 98.0 - 103.0%
|
| Loss on drying (130°C)
| 21.5 - 24.0%
|
| Water (Karl Fischer)
| 18.0 - 26.5%
|
| Water insoluble matter
| max. 0.2%
|
| pH (5%, 25°C)
| 4.2 - 4.5
|
| pH (1%, 20°C)
| 4.1 - 5.0
|
| Arsenic (As)
| max. 1 ppm
|
| Calcium (Ca)
| max. 0.002%
|
| Cadmium (Cd)
| max. 1 ppm
|
| Copper (Cu)
| max. 0.001%
|
| Iron (Fe)
| max. 5 ppm
|
| Mercury (Hg)
| max. 1 ppm
|
| Magnesium (Mg)
| max. 0.002%
|
| Lead (Pb)
| max. 1 ppm
|
| Zinc (Zn)
| max. 0.001%
|
| Heavy metals (as Pb)
| max. 10 ppm
|
| Al, Ca and Related Substances
| complying
|
| Chloride (Cl)
| max. 50 ppm
|
| Fluoride (F)
| max. 10 ppm
|
| Sulfate (SO4)
| max. 200 ppm
|
| Reducing impurities
| complying
|
| Appearance of the solution
| complying
|
| Residual solvents
| complying
|
| Appearance
| complying
|