Potassio ioduro, per analisi, ExpertQ®, ACS, ISO, Reag. Ph Eur

- 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 (argentometric): min. 99,5 %
assay (titrimetric, referred to dried sample): 99,0 - 100,5 %
assay (titrimetric): min. 99,0 %
Identification iodides: passes test
Identification potassium: passes test
appearance of solution : passes test
insoluble in water: max. 0,005 %
pH (5 %, H2O): 6,0 - 8,0
alkalinity: passes test
chlorides and bromides (as Cl): max. 100 ppm:
iodates (IO3): max. 3 ppm
iodates (IO3): passes test
iodates (IO3) and iodine (I) (as IO3) : max. 3 ppm
phosphates (PO4): max. 10 ppm
sulfates (SO4): max. 50 ppm
thiosulfates (S2O3): passes test
total nitrogen (as N): max. 0,001 %
arsenic (As): max. 0,1 ppm
barium (Ba): max. 20 ppm
calcium (Ca): max. 10 ppm
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 3 ppm
magnesium (Mg): max. 10 ppm
sodium (Na): max. 50 ppm
reducing substances: passes test
loss on drying (105 ºC, 3 h): max. 1,0 %
loss on drying (150ºC, 6 h): max. 0,2 %

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