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Merck
CN

60152

Sigma-Aldrich

硫酸铬(III)钾 十二水合物

purum p.a., ≥98.5% (RT)

别名:

硫酸钾铬(III) 十二水合物, 铬明矾

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About This Item

线性分子式:
CrK(SO4)2 · 12H2O
CAS号:
分子量:
499.40
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21
方案:
≥98.5% (RT)
表单:
crystals

等级

purum p.a.

质量水平

方案

≥98.5% (RT)

表单

crystals

mp

89 °C (lit.)

痕量阴离子

chloride (Cl-): ≤200 mg/kg

痕量阳离子

Ca: ≤500 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤200 mg/kg
Na: ≤1000 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES字符串

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

InChI

1S/Cr.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4

InChI key

ZFVHBEKVAITXHW-UHFFFAOYSA-J

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一般描述

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.

应用

Chromium(III) potassium sulfate dodecahydrate (KCr(SO4)2.12H2O) may be used for coating the slides for microscopic studies on Periplaneta americana. It may be used in the preparation of quasi-monodisperse spherical core-shell particles of Cr/α-Cr2O3.

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2 - Skin Irrit. 2

储存分类代码

11 - Combustible Solids

WGK

WGK 3


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Black Cr/α-Cr2O3 nanoparticles based solar absorbers.
Khamlich S, et al.
Physica B: Condensed Matter, 407(10), 1509-1512 (2012)
Eagleson M.
Concise Encyclopedia Chemistry, 887-887 (1994)
Venous sclerosants: distant ischaemic disorders.
Prescrire international, 20(117), 155-155 (2011-06-18)
H Murabayashi et al.
The Journal of veterinary medical science, 61(10), 1183-1186 (1999-11-24)
One of the most attractive characteristics of a horse testis is the change of the weight during development. As the testicular weight changes and the number of Leydig cells decreases, pigments appear in interstitial tissues. In the present study, the
T J Filler et al.
Histochemistry, 101(5), 375-378 (1994-06-01)
This paper introduces two innovations in reflection contrast microscopy (RCM): (1) an extended application for qualitative light microscopic investigations; and (2) a novel method for quantification in cytochemistry. (1) We found out that RCM cannot only be used for surface

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