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101036 Chromium(III) potassium sulfate dodecahydrate

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Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7788-99-0233-401-6CrKO₈S₂ * 12 H₂OKCr(SO₄)₂ * 12H₂O499.41 g/molACS,Reag. Ph Eur


Catalogue NumberPackaging Qty/Pack
1010360250 Plastic bottle 250 g
Catalogue Number101036
SynonymsPotassium chromium(III) sulfate, Alum chrome
DescriptionChromium(III) potassium sulfate dodecahydrate
Product Information
CAS number7788-99-0
EC number233-401-6
GradeACS,Reag. Ph Eur
Hill FormulaCrKO₈S₂ * 12 H₂O
Chemical formulaKCr(SO₄)₂ * 12H₂O
Molar Mass499.41 g/mol
HS Code2833 30 00
Quality LevelMQ300
Biological Information
Physicochemical Information
Density1.83 g/cm3 (20 °C)
Melting Point89 °C
pH value3 (50 g/l, H₂O, 20 °C)
Bulk density800 - 1000 kg/m3
Solubility250 g/l
Materials Information
Toxicological Information
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H315: Causes skin irritation.
H319: Causes serious eye irritation.
Precautionary Statement(s)P264: Wash skin thoroughly after handling.
P280: Wear protective gloves/ eye protection/ face protection.
P302 + P352: IF ON SKIN: Wash with plenty of water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P332 + P313: If skin irritation occurs: Get medical advice/ attention.
P337 + P313: If eye irritation persists: Get medical advice/ attention.
Signal WordWarning
Storage class10 - 13 Other liquids and solids
WGKWGK 3 highly hazardous to water
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).
Safety Information
Categories of dangerirritant
Product Usage Statements
Storage and Shipping Information
StorageStore at +15°C to +25°C.
Packaging Information
Transport Information
Supplemental Information
Assay (iodometric)99.0 - 102.0 %
Identitypasses test
Insoluble matter≤ 0.01 %
Chloride (Cl)≤ 0.002 %
Heavy metals (as Pb)≤ 0.01 %
Al (Aluminium)≤ 0.005 %
Cu (Copper)≤ 0.001 %
Fe (Iron)≤ 0.010 %
NH₄ (Ammonium)≤ 0.010 %
Pb (Lead)≤ 0.005 %
Global Trade Item Number
Catalogue Number GTIN
1010360250 04022536014814