243361

Chromium(III) potassium sulfate dodecahydrate

Manufacturer: Sigma Aldrich

CAS Number: 7788-99-0

Synonym(S): Chrome alum, Potassium chromium(III) sulfate dodecahydrate

Select a Size

Pack Size SKU Availability Price
5 G 243361-5-G In Stock ₹ 3,009.35
100 G 243361-100-G In Stock ₹ 3,388.23
500 G 243361-500-G In Stock ₹ 7,523.38

243361 - 5 G

₹ 3,009.35

In Stock

Quantity

1

Base Price: ₹ 3,009.35

GST (18%): ₹ 541.683

Total Price: ₹ 3,551.033

grade

ACS reagent

Quality Level

200

Assay

≥98%98.0-102.0% (ACS specification)

form

crystals

reaction suitability

reagent type: catalystcore: chromium

impurities

≤0.01% insolubles

mp

89 °C (lit.)

anion traces

chloride (Cl-): ≤0.002%

cation traces

Al: ≤0.02%Fe: ≤0.01%NH4+: ≤0.01%heavy metals (as Pb): ≤0.01%

SMILES string

O.O.O.O.O.O.O.O.O.O.O.O.[K+].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O

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Description

  • General description: Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is widely used chemical in dyeing and textile industry. It can be synthesized by reacting sulfur dioxide with potassium dichromate (dissolved in sulfuric acid) at -38°C.[1]
  • Application: Chromium(III) potassium sulfate dodecahydrate [KCr(SO4)2.12H2O] has been used for the dissolution of gelatin in various studies.[2][3]It may be used as a starting material in the synthesis of quasi-monodisperse spherical core-shell particles of Cr/α-Cr2O3 to be used as solar absorbers.[4]

SAFETY INFORMATION

Pictograms

GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Precautionary Statements

P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

WGK

WGK 3