Potassium nitrite, crystallized, for analysis, ExpertQ®, ACS

- Synonyms: Nitrous acid potassium salt
- KNO2
- M = 85,11 g/mol
- CAS [7758-09-0]
- EINECS-No.: 231-832-4
- Solub. in water: (20 ºC): soluble
- Melting point: 440 ºC
- EC-Index-No.: 007-011-00-X
- ADR: 5.1 O2 II UN 1488
- IMDG: 5.1 II UN 1488
- IATA/ICAO: 5.1 II UN 1488
- GHS-signal word: Danger
- GHS-H sentences: H272 - H301 - H400
- GHS-P sentences: P221 - P210 - P301+P310 - P370+P378 - P405 - P501a
- Tariff number: 2834 10 00 00
- Applications: analytical chemistry, laboratory reagent, in food industry, preservative agent (E-249), for determination of: aminoacids, cobalt, iodine, urea.

SPECIFICATIONS
assay (permanganometric): min. 96,0 %
insoluble in water: max. 0,01 %
pH (5 %, H2O): 7,0 - 10,0
chlorides (Cl): max. 0,01 %
sulfates (SO4): max. 0,01 %
calcium (Ca): max. 0,003 %
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 0,001 %
sodium (Na): max. 0,5 %