di-Potassio idrogenofosfato triidrato, per analisi, ExpertQ®, Reag. Ph Eur

- Synonyms: Secondary potassium phosphate, Potassium phosphate dibasic
- K2HPO4·3H2O
- M = 228,23 g/mol
- CAS [16788-57-1]
- EINECS-No.: 231-834-5
- Solub. in water: (20 ºC): freely soluble
- Tariff number: 2835 24 00 00
- Applications: in buffer solutions (chromatography).

SPECIFICATIONS
assay (acidimetric): min. 98 %
insoluble in water: max. 0,01 %
pH (5 %, H2O): 8,5 - 9,6
chlorides (Cl): max. 0,001 %
sulfates (SO4): max. 0,005 %
total nitrogen (as N): max. 0,001 %
arsenic (As): max. 0,5 ppm
copper (Cu): max. 0,003 %
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 5 ppm
lead (Pb): max. 0,001 %
nickel (Ni): max. 0,001 %
sodium (Na): max. 0,1 %