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Potassium sulfate, for analysis, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Sulfuric acid potassium saltr- K2SO4r- M = 174,27 g/molr- CAS [7778-80-5]r- EINECS-No.: 231-915-5r- Solub. in water: (20 ºC): 110 g/lr- Melting point: 1069 ºCr- Boiling point: 1689 ºCr- LD 50 (oral, rat): 6600 mg/kgr- Tariff number: 3104 30 00 00r- Applications: analytical chemistry, laboratory reagent, for determination of: nitrogen (Kjeldahl), in fertilizer compositions, manufacture of glass.rrSPECIFICATIONSrassay (acidimetric): min. 99,0 %ridentity (IR-spectrum): passes testrinsoluble in water: max. 0,01 %rpH (5 %, H2O): 5,5 - 8,0 rchlorides (Cl): max. 5 ppmrtotal nitrogen (as N): max. 5 ppmrarsenic (As): max. 2 ppmrcalcium (Ca): max. 0,005 %rheavy metals (as Pb): max. 5 ppmriron (Fe): max. 5 ppmrmagnesium (Mg): max. 0,002 %rsodium (Na): max. 0,02 % r