Analytical Reagents,
Analytical Reagents for General Use,
Analytical/Chromatography,
C-D, Puriss p.a.,
Chromium Salts,
Essential Chemicals,
Puriss p.a.,
Research Essentials,
Salts
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grade
ACS reagent
InChI Key
ZFVHBEKVAITXHW-UHFFFAOYSA-J
grade
puriss. p.a.
assay
≥99.0% (RT)
mp
89 °C(lit.)
solubility
water: soluble(lit.)
anion traces
chloride (Cl-): ≤20 mg/kg
cation traces
Al: ≤200 mg/kg
Ca: ≤100 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cu: ≤10 mg/kg
Fe: ≤100 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤100 mg/kg
Na: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤50 mg/kg
Zn: ≤10 mg/kg
Description:
Packaging
500 g in poly bottle
Application
Chromium(III) potassium sulfate dodecahydrate (KCr(SO4)2.12H2O) has been used for coating the slides for microscopic studies on Periplaneta americana. It may be used in the preparation of quasi-monodisperse spherical core-shell particles of Cr/α-Cr2O3.
General description
Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is a violet colored solid. It has been synthesized by reacting sulfur dioxide with potassium dichromate (dissolved in sulfuric acid) at -38°C. It is widely used chemical in dyeing and textile industry.