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di-Potassium hydrogen phosphate trihydrate, for analysis, ExpertQ®, Reag. Ph Eur

- Synonyms: Secondary potassium phosphate, Potassium phosphate dibasicr- K2HPO4·3H2Or- M = 228,23 g/molr- CAS [16788-57-1]r- EINECS-No.: 231-834-5r- Solub. in water: (20 ºC): freely solubler- Tariff number: 2835 24 00 00r- Applications: in buffer solutions (chromatography).rrSPECIFICATIONSrassay (acidimetric): min. 98 %rinsoluble in water: max. 0,01 %rpH (5 %, H2O): 8,5 - 9,6rchlorides (Cl): max. 0,001 %rsulfates (SO4): max. 0,005 %rtotal nitrogen (as N): max. 0,001 %rarsenic (As): max. 0,5 ppmrcopper (Cu): max. 0,003 %rheavy metals (as Pb): max. 0,001 %riron (Fe): max. 5 ppmrlead (Pb): max. 0,001 %rnickel (Ni): max. 0,001 %rsodium (Na): max. 0,1 %r