di-Sodium hydrogen phosphate dihydrate, Pharmpur®, Ph Eur, BP, USP
- Synonyms: Sodium monohydrogen phosphate, Sodium phosphate dibasic
- Na2HPO4·2H2O
- M = 177,99 g/mol
- CAS [10028-24-7]
- EINECS-No.: 231-448-7
- Solub. in water: (20 ºC): 93 g/l
- Melting point: 92,5 ºC (release of crystalline water)
- LD 50 (oral, rat): 17000 mg/kg (anhydrous substance)
- Tariff number: 2835 22 00 00
- Applications: analytical chemistry, in buffer solutions (phosphates).
SPECIFICATIONS
assay (acidimetric, referred to dried sample): 98,0 - 100,5 %
identification: passes test
appearance of solution: clear and colourless
insoluble in water : max. 0,4 %
arsenic (As): max. 4 ppm
chlorides (Cl): max. 400 ppm
sulfates (SO4): max. 0,1 %
iron (Fe): max. 40 ppm
monosodium phosphate: max. 2,5 %
reducing substances: passes test
loss on drying (130 ºC): 19,5 - 21,0 %
| Reference | ||
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SO0338025P |
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SO03380500 |
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SO03381000 |
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