Potassium chloride, for analysis, ExpertQ®, Reag. Ph Eur

- Synonyms: Chloro potassium
- KCl
- M = 74,56 g/mol
- CAS [7447-40-7]
- EINECS-No.: 231-211-8
- Solub. in water: (20 ºC): 330 g/l
- Melting point: 773 ºC
- Boiling point: 1413 ºC
- LD 50 (oral, rat): 2600 mg/kg
- Tariff number: 3104 20 90 00

SPECIFICATIONS
assay (argentometric, on dried sample): passes test
insoluble in water: max. 0,01 %
pH (5 %, H2O): 5,5 - 8,0
bromides (Br): max. 0,05 %
iodides (I): max. 0,002 %
iodides (I): passes test
phosphates (as PO4): max. 0,0005 %
sulfates (SO4): max. 0,005 %
Identification potassium EP: passes test
Identification chloride EP: passes test
appearance of solution: clear and colourless
acidity : passes test
alkalinity: passes test
magnesium and alkaline-earth metals (as Ca): max. 200 ppm
loss on drying (105 ºC, 3 h): max. 1,0 %
total nitrogen (as N): max. 0,001 %
barium (Ba): max. 0,001 %
calcium (Ca): max. 0,001 %
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 3 ppm
magnesium (Mg): max. 0,002 %
sodium (Na): max. 0,02 %