CHROMIUM (III) POTASSIUM SULPHATE DODECAHYDRATE

CHROMIUM (III) POTASSIUM SULPHATE DODECAHYDRATE AR/ACS

Chrome alum; Potassium chromium(III) sulfate dodecahydrate

Article No.

2819D

Grade

AR/ACS

Purity

99%

CAS No.

7788-99-0

Molecular Formula

KCr(SO₄)₂.12H₂O

Molecular Weight

499.39

H.S. Code

2833.2990

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

Physical state at 20 °C

Solid

Colour

Violet crystalline

Odour

Odorless

Melting point/ Freezing point [°C]

89 °C

Density [g/cm3]

1.826

Solubility in water [% weight]

Soluble in water

Appearance	Violet crystalline powder
Assay (iodometric)	99 - 102%
Substance insoluble in water	Max 0.01%
Chloride (Cl)	Max 0.002%
Lead (Pb)	Max 0.005%
Copper (Cu)	Max 0.001%
Nickel (Ni)	Max 0.001%
Iron (Fe)	Max 0.01%
Aluminium (Al)	Max 0.005%
Ammonium (NH4)	Max 0.01%
Heavy metal (as Pb)	Max 0.01%

Safety Statement: 22-24/25

Revision Date : 19-Apr-2013