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Aluminium potassium sulfate dodecahydrate, for analysis, ExpertQ®, ACS, Reag. Ph Eur

- Synonyms: Potassium aluminium sulfate, Alum potassium, Potassium alumr- KAl(SO4)2·12H2Or- M = 474,39 g/molr- CAS [7784-24-9]r- EINECS-No.: 233-141-3r- Solub. in water: (20 ºC): 139 g/lr- Melting point: 90 ºCr- Tariff number: 2833 30 00 00r- Applications: analytical chemistry, manufacture of dyes, manufacturing of lacquers, in explosive compositions.r- Appearance: Blanco y CristalinorrSPECIFICATIONSrassay (complexometric): 99,0 - 100,5 %ridentity (IR-spectrum): passes testrappearance of solution: clear and colourlessrinsoluble in water: max. 0,005 %rpH (10 %, H2O): 3,0 - 3,5 rchlorides (Cl): max. 5 ppmrammonium (NH4): max. 0,005 %rcadmium (Cd): max. 5 ppmrcopper (Cu): max. 5 ppmrheavy metals (as Pb): max. 0,001 %riron (Fe): max. 5 ppmrlead (Pb): max. 5 ppmrsodium (Na): max. 0,005 %r