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

- Synonyms: Knollide
- KI
- M = 166,01 g/mol
- CAS [7681-11-0]
- EINECS-No.: 231-659-4
- Solub. in water: (20 ºC): soluble
- Melting point: 686 ºC
- Boiling point: 1330 ºC
- Vapour pressure: (745 ºC) 1,3 hPa
- LD 50 (oral, rat): 2779 mg/kg
- GHS-signal word: Danger
- GHS-H sentences: H372
- GHS-P sentences: P260 - P264 - P270 - P314 - P501a
- Tariff number: 2827 60 00 90
- Applications: analytical chemistry, laboratory reagent, emulsifier (photography).

SPECIFICATIONS
assay (titrimetric, referred to dried sample): 99,0 - 100,5 %
Identification iodides: passes test
Identification potassium: passes test
appearance of solution: clear and colourless
alkalinity: passes test
iodates (IO3): passes test
sulfates (SO4): max. 150 ppm
thiosulfates (S2O3): passes test
thiosulfates and barium: passes test
nitrates, nitrites and ammonia: passes test
iron (Fe): max. 20 ppm
loss on drying (105 ºC, 3 h): max. 1,0 %
loss on drying (105 °C, 4h) : max. 1,0 %