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  7. Chromium(III) potassium sulfate dodecahydrate, 99.9% (metals basis)

Chromium(III) potassium sulfate dodecahydrate, 99.9% (metals basis)

Catalog No. p-4407388
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Catalog No. Quantity
AA4408314 25 g
AA4408322 100 g
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Catalog No. AA4408314 Supplier Thermo Scientific Chemicals Supplier No. 04408314
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Description

CAS: 7788-99-0 | CrH24KO20S2 | 499.386 g/mol

It is used for tanning of leather and as a photographic film hardener. It is also used in textile dye, photography, ceramics, and the preparation of chromium standard solutions, as a catalyst, mordant, ceramics, tannage and developer.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers

CAS 7788-99-0
Molecular Formula CrH24KO20S2
Molecular Weight (g/mol) 499.386
MDL Number MFCD00149917
InChI Key ZFVHBEKVAITXHW-UHFFFAOYSA-J
Synonym chromium potassium sulfate dodecahydrate, chrome alum dodecahydrate, potassium chromium alum dodecahydrate, unii-h54d055wx6, ccris 8929, chromic potassium sulfate dodecahydrate, chromium iii potassium sulfate 1:1:2 , dodecahydrate, sulfuric acid, chromium 3+ potassium salt 2:1:1 , dodecahydrate, acmc-20alga, ksc492e4p
PubChem CID 24596
IUPAC Name potassium;chromium(3+);disulfate;dodecahydrate
SMILES O.O.O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[K+].[Cr+3]

Specifications

Melting Point 89°C
Color Violet
Physical Form Crystalline
Quantity 25 g
Assay Percent Range 99.9% (Metal basis)
Solubility Information Soluble in water 24g/100 mL (15°C).
Formula Weight 499.39 (283.21 Anhydrous)
Odor Odorless
Appearance Violet crystals
Density 1.83 g/cm3
Chemical Name or Material Chromium(III) potassium sulfate dodecahydrate
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Safety and Handling

Hazard Category H315-H319
Precautionary Statement P264b-P280-P302+P352-P305+P351+P338-P332+P313-P362
EINECSNumber 233-401-6
RTECSNumber GB6850000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only