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Potassium hydrogen sulfate, EssentQ®

- Synonyms: Potassium bisulfate
- KHSO4
- M = 136,17 g/mol
- CAS [7646-93-7]
- EINECS-No.: 231-594-1
- Solub. in water: (20 ºC): 490 g/l (exothermic process)
- Melting point: 210 ºC (decomposes)
- LD 50 (oral, rat): 2340 mg/kg
- EC-Index-No.: 016-056-00-4
- ADR: 8 C2 II UN 2509
- IMDG: 8 II UN 2509
- IATA/ICAO: 8 II UN 2509
- GHS-signal word: Danger
- GHS-H sentences: H314 - H335
- GHS-P sentences: P260 - P303+P361+P353 - P305+P351+P338 - P310 - P405 - P501a
- Tariff number: 2833 29 90 00
- Applications: analytical chemistry, laboratory reagent, for determination of: silicon compounds and ores.

SPECIFICATIONS
assay (acidimetric): min. 99 %
chlorides (Cl): max. 0,003 %
nitrates (NO3): max. 0,005 %
phosphates (as PO4): max. 0,005 %
aluminium (Al): max. 0,002 %
calcium (Ca): max. 0,01 %
arsenic (As): max. 5 ppm
copper (Cu): max. 0,005 %
heavy metals (as Pb): max. 0,004 %
iron (Fe): max. 0,002 %
lead (Pb): max. 0,005 %
magnesium (Mg): max. 0,01 %
nickel (Ni): max. 0,01 %