Chromium potassium sulfate dodecahydrate CAS#: 7788-99-0

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Chromium potassium sulfate dodecahydrate

Basic information Safety Supplier Related

Chromium potassium sulfate dodecahydrate Basic information

Product Name:

Chromium potassium sulfate dodecahydrate

Synonyms:

Chromium (III) Potassium Dodecahydrate
CHROMIUM POTASSIUM SULFATE, REAGENT (ACS)CHROMIUM POTASSIUM SULFATE, REAGENT (ACS)CHROMIUM POTASSIUM SULFATE, REAGENT (ACS)CHROMIUM POTASSIUM SULFATE, REAGENT (ACS)
chromicpotassiumsulfatedodecahydrate
chromicpotassiumsulfatedodecahydrate(chromealum)
Chromium(III)potassiumsulfate(1:1:2),dodecahydrate
potassiumchromiumalumdodecahydrate
Potassiumchromiumsulfate,doe
Chromium(Ⅲ) potassium sulfate dodecahydrate

CAS:

7788-99-0

MF:

CrH5KO5S

MW:

208.19

EINECS:

616-539-5

Mol File:

7788-99-0.mol

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Chromium potassium sulfate dodecahydrate Chemical Properties

Melting point:: 89 °C(lit.)
Density: 1.83
storage temp.: Store at +15°C to +25°C.
solubility: water: soluble(lit.)
form: Solid
color: Violet
PH: 3 (50g/l, H2O, 20℃)
Odor: Odorless
Water Solubility: 24 g/100 mL (15 ºC)
Merck: 14,2229
Exposure limits: NIOSH: IDLH 25 mg/m3; TWA 0.5 mg/m3
Stability:: Stable. Incompatible with magnesium, aluminium.
CAS DataBase Reference: 7788-99-0(CAS DataBase Reference)

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Safety Information

Hazard Codes: Xi
Risk Statements: 36/38
Safety Statements: 22-24/25-37/39-26
WGK Germany: 2
RTECS: GB6850000
TSCA: Yes
HS Code: 28332990

MSDS

Language:English Provider:Chromium(III) potassium sulfate
Language:English Provider:ACROS
Language:English Provider:SigmaAldrich
Language:English Provider:ALFA

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Chromium potassium sulfate dodecahydrate Usage And Synthesis

Chemical Properties

deep violet-red crystals

Uses

Chromium potassium sulfate dodecahydrate is used in method for synthesizing metal-organic terephthalate structure MIL-101 (Cr).

Uses

Chromium(III) potassium sulfate dodecahydrate [KCr(SO₄)₂.12H₂O] has been used for the dissolution of gelatin in various studies.
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.

Uses

Chromium potassium sulfate dodecahydrate is used in preparation of chromium standard solutions.

General Description

Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is a violet colored solid. It has been synthesized by reacting sulfur dioxide with potassium dichromate (diisolved in sulfuric acid) at -38°C. It is widely used chemical in dyeing and textile industry.

Purification Methods

Crystallise it from hot water (2mL/g) by cooling.

Chromium potassium sulfate dodecahydrate Preparation Products And Raw materials

Raw materials

Sulfuric acid Potassium dichromate

Preparation Products

CHROMIUM POTASSIUM SULFATE Neutral Black 2S-RL Neutral Grey 2BL Solvent Red KL Solvent Red BL Neutral Bordeaux D-BN

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