243361
硫酸铬(III)钾 十二水合物
ACS reagent, ≥98%
别名:
硫酸钾铬(III) 十二水合物, 铬明矾
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关于此项目
线性分子式:
CrK(SO4)2 · 12H2O
化学文摘社编号:
分子量:
499.40
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NB.24
等级
ACS reagent
质量水平
方案
≥98%
98.0-102.0% (ACS specification)
表单
crystals
反应适用性
reagent type: catalyst
core: chromium
杂质
≤0.01% insolubles
mp
89 °C (lit.)
痕量阴离子
chloride (Cl-): ≤0.002%
痕量阳离子
Al: ≤0.02%
Fe: ≤0.01%
NH4+: ≤0.01%
heavy metals (as Pb): ≤0.01%
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
铬 (III) 十二水合硫酸钾（十二水合硫酸铬 (III) 钾铬矾）是广泛用于染色和纺织工业的化学品。二氧化硫与重铬酸钾（溶于硫酸）在-38℃ 下反应可合成。
应用
十二水合硫酸铬 (III) 钾 [KCr (SO 4 ) 2 。在多项研究中，12H 2 O 被用于明胶的溶解。
可作为合成 Cr/α 准单分散球形核壳粒子的起始材料-Cr 2 O 3 用作太阳能吸收剂。
可作为合成 Cr/α 准单分散球形核壳粒子的起始材料-Cr 2 O 3 用作太阳能吸收剂。
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)
G M Lee et al.
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C A Redi et al.
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