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Chromium(III) potassium sulphate dodecahydrate, 1 kg

≥98 %, p.a., ACS
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
i causes skin irritation, causes serious eye irritation
P280 P302+P352 P305+P351+P338
i wear protective gloves/eye protection, IF ON SKIN: Wash with plenty of water, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
Pack Qty.
Alum chrome, Chromic(III) potassium sulphate 12-hydrate, Potassium chromium(III) sulphate
Empirical formula KCr(SO4)2 · 12 H2O
Molar mass (M) 499,41 g/mol
Density (D) 1,83 g/cm³
Melting point (mp) 89 °C
CAS No. 7788-99-0
EG-Nr. 233-401-6

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Art. No. 4389.3

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Chromium(III) potassium sulphate dodecahydrate
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4389.1 250 g plastic


4389.2 500 g plastic


4389.3 1 kg plastic


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Downloads / MSDS

General information

Salts for Analysis

Our salts for analysis are manufactured under strict production guidelines. Analytical purity and best quality reliably characterize each batch. Salts in p.a. quality made by Carl ROTH meet the high requirements for reproducible results. Most of our salts are additionally specified according to international standards like ACS and ISO.

p.a.: pro analysi (for analysis)ACS: American Chemical SocietyISO: International Standard Organisation


Certificates of Analysis

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The following analysis certificates have been found:

Guarantee analysis

Appearanceviolet crystalline powder
Assay (iodom.)98,0-102,0 %
In H2O insoluble matter≤0,01 %
Chloride (Cl)≤0,002 %
Aluminium (Al)≤0,005 %
Ammonium (NH4)≤0,01 %
Lead (Pb)≤0,005 %
Iron (Fe)≤0,01 %
Copper (Cu)≤0,001 %
Nickel (Ni)≤0,001 %
Heavy metals (as Pb)≤0,01 %