Potassio idrogenotartrato, Pharmpur®, Ph Eur, BP

- Synonyms: Potassium bitartrate, Tartaric acid monopotassium salt
- C4H5KO6
- M = 188,14 g/mol
- CAS [868-14-4]
- EINECS-No.: 212-769-1
- Solub. in water: (20 ºC): 5,7 g/l
- Melting point: ~ 250 ºC (decomposes)
- Tariff number: 2918 13 00 90
- Applications: in food industry, in galvanotechnia, colouring agent (metals), in pharma industry.

SPECIFICATIONS
assay (acidimetric, on dried sample): 99,5 - 100,5 %
Identification B (EP): passes test
Identification tartrate: passes test
Identification potassium: passes test
specific rotation ([a]20°/D): + 8,0 º - + 9,2 °
chlorides (Cl): max. 500 ppm
sulfates (SO4): max. 500 ppm
oxalic acid (C2H2O4): max. 500 ppm
barium (Ba): passes test
loss on drying (105 ºC): max. 0,5 %