Siarczan potasowy, ExpertQ® ekstra czysty, ACS, ISO, Reag. Ph Eur – SCHARLAU
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Potassium sulfate, ExpertQ®, ACS, ISO, R
– Synonyms: Sulfuric acid potassium salt
– K2SO4
– M = 174,27 g/mol
– CAS [7778-80-5]
– EINECS-No.: 231-915-5
– Solub. in water: (20 ºC): 110 g/l
– Melting point: 1069 ºC
– Boiling point: 1689 ºC
– LD 50 (oral, rat): 6600 mg/kg
– Tariff number: 3104 30 00 00
– Applications: analytical chemistry, laboratory reagent, for determination of: nitrogen (Kjeldahl), in fertilizer compositions, manufacture of glass.
SPECIFICATIONS
assay (acidimetric): min. 99,0 %
identity (IR-spectrum): passes test
insoluble in water: max. 0,01 %
pH (5 %, H2O): 5,5 – 8,0
chlorides (Cl): max. 5 ppm
total nitrogen (as N): max. 5 ppm
arsenic (As): max. 2 ppm
calcium (Ca): max. 0,005 %
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 5 ppm
magnesium (Mg): max. 0,002 %
sodium (Na): max. 0,02 %
