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di-Potassium Hydrogen Phosphate, anhydrous, for molecular biology

- Synonyms: Dipotassium hydrogen phosphate, Potassium phosphate dibasicr- K2HPO4r- M = 174,18 g/molr- CAS [7758-11-4]r- EINECS-No.: 231-834-5r- Solub. in water: (20 ºC): solubler- Tariff number: 2835 24 00 00r- Applications: analytical chemistry, in buffer solutions (phosphates), nutrient media for bacterial culture.rrSPECIFICATIONSrassay (acidimetric): min. 99 %rpH (5 %, H2O, 20 °C): 8,7 - 9,4rheavy metals (as Pb): max. 0,001 %rinsoluble matter: passes testrloss on drying (105 ºC): max. 1,0 %rchlorides (Cl): max. 0,02 %: rfluorides (F): max. 0,001 %rsulfates (SO4): max. 0,005 %rrA at 260 nm (1 cm/0,1 M in H2O): max. 0,05 AUrA at 280 nm (1 cm/0,1 M in H2O): max. 0,05 AUr