di-Sodium hydrogen phosphate dihydrate, HPLC grade
- Synonyms: Sodium monohydrogen phosphate, Sodium phosphate dibasicr- Na2HPO4·2H2Or- M = 177,99 g/molr- CAS [10028-24-7]r- EINECS-No.: 231-448-7r- Solub. in water: (20 ºC): 93 g/lr- Melting point: 92,5 ºC (release of crystalline water)r- LD 50 (oral, rat): 17000 mg/kg (anhydrous substance)r- Tariff number: 2835 22 00 00r- Applications: analytical chemistry, in buffer solutions (phosphates).rrSPECIFICATIONSrassay (acidimetric, referred to dried sample): min. 99,5 %ridentity (IR): passes test: rinsoluble in water : max. 0,4 %rpH (5 %, H2O): 9,0 - 9,2 rrwavelength:: absorbance:r230 nm: 0,1 AUr260 nm: 0,06 AUr280 nm: 0,04 AUr320 nm: 0,02 AUr
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