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ChemicalBook--->CAS DataBase List--->7788-99-0

7788-99-0

7788-99-0 Structure

7788-99-0 Structure
IdentificationMore
[Name]

Chromium potassium sulfate dodecahydrate
[CAS]

7788-99-0
[Synonyms]

ALUM CHROME
CHROME ALUM
CHROME ALUM, DODECAHYDRATE
CHROMIC POTASSIUM SULPHATE
CHROMIC POTASSIUM SULPHATE 12-HYDRATE
CHROMIC POTASSIUM SULPHATE DODECAHYDRATE
CHROMIUM(+3)POTASSIUM SULFATE 12-WATER
CHROMIUM(III) POTASSIUM SULFATE
CHROMIUM (III) POTASSIUM SULFATE 12-WATER
CHROMIUM(III) POTASSIUM SULFATE DODECAHYDRATE
CHROMIUM(III) POTASSIUM SULPHATE 12-HYDRATE
CHROMIUM(III) POTASSIUM SULPHATE DODECAHYDRATE
CHROMIUM POTASSIUM SULFATE
CHROMIUM POTASSIUM SULFATE 12 H2O
CHROMIUM POTASSIUM SULFATE, 12-HYDRATE
CHROMIUM POTASSIUM SULFATE DODECAHYDRATE
CHROMIUM POTASSIUM SULFATE, HYDROUS
POTASSIUM CHROMIUM(+3)SULFATE 12-WATER
POTASSIUM CHROMIUM ALUM
POTASSIUM CHROMIUM(III) SULFATE
[EINECS(EC#)]

233-401-6
[Molecular Formula]

CrH24KO20S2
[MDL Number]

MFCD00149917
[Molecular Weight]

499.4
[MOL File]

7788-99-0.mol
Chemical PropertiesBack Directory
[Appearance]

deep violet-red crystals
[Melting point ]

89 °C(lit.)
[bulk density]

800-1000kg/m3
[density ]

1.83
[storage temp. ]

Store at +15°C to +25°C.
[solubility ]

water: soluble(lit.)
[form ]

Solid
[color ]

Violet
[Odor]

Odorless
[PH]

3 (50g/l, H2O, 20℃)
[Stability:]

Stable. Incompatible with magnesium, aluminium.
[Water Solubility ]

24 g/100 mL (15 ºC)
[Merck ]

14,2229
[Exposure limits]

NIOSH: IDLH 25 mg/m3; TWA 0.5 mg/m3
[CAS DataBase Reference]

7788-99-0(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/38:Irritating to eyes and skin .
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
[WGK Germany ]

2
[RTECS ]

GB6850000
[TSCA ]

Yes
[HS Code ]

28332990
Raw materials And Preparation ProductsBack Directory
[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
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Chromium(III) potassium sulfate(7788-99-0).msds
Hazard InformationBack Directory
[Chemical Properties]

deep violet-red crystals
[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 method for synthesizing metal-organic terephthalate structure MIL-101 (Cr).
[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.
[reaction suitability]

reagent type: catalyst
core: chromium
[Purification Methods]

Crystallise it from hot water (2mL/g) by cooling.
Spectrum DetailBack Directory
[Spectrum Detail]

Chromium potassium sulfate dodecahydrate(7788-99-0)IR1
Chromium potassium sulfate dodecahydrate(7788-99-0)ESR
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Chromium potassium sulfate dodecahydrate, 99+%(7788-99-0)
[Alfa Aesar]

Chromium(III) potassium sulfate tetracosahydrate, 98%(7788-99-0)
[Sigma Aldrich]

7788-99-0(sigmaaldrich)
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