Potassium carbonate, Pharmpur®, Ph Eur, BP, USP

- Synonyms: Potash
- K2CO3
- M = 138,21 g/mol
- CAS [584-08-7]
- EINECS-No.: 209-529-3
- Solub. in water: (20 ºC): soluble
- Melting point: 891 ºC
- LD 50 (oral, rat): > 2000 mg/kg
- GHS-signal word: Warning
- GHS-H sentences: H315 - H319 - H335
- GHS-P sentences: P261 - P280 - P305+P351+P338 - P321 - P405 - P501a
- Tariff number: 2836 40 00 00
- Applications: analytical chemistry, laboratory reagent, manufacture of glass, in the ceramics industry, inorganic salts, cosmetics.

SPECIFICATIONS
assay (acidimetric, referred to dried sample): 99,5 - 100,5 %
Identification A (EP): passes test
Identification carbonates: passes test
Identification bicarbonates: passes test
Identification potassium: passes test
appearance of solution: passes test
insoluble matter: passes test
chlorides (Cl): max. 100 ppm:
sulfates (SO4): max. 100 ppm:
calcium (Ca): max. 100 ppm:
iron (Fe): max. 10 ppm
loss on drying (125 ºC, 5 h): max. 5,0 %
loss on drying (180 °C, 4h) : max. 0,5 %