产品说明
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℃. 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.
基本信息
| 线性分子式 | CrK(SO4)2 · 12H2O |
| 分子量 | 499.40 |
| EC 号 | 233-401-6 |
| MDL编号 | MFCD00149917 |
| PubChem化学物质编号 | 329758772 |
| NACRES | NA.21 |
产品性质
| 质量水平 | 200 |
| 等级 | purum p.a. |
| 测定 | ≥98.5% (RT) |
| 形式 | crystals |
| mp | 89 ℃ (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 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 |
| 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 |
安全信息
| 象形图 |  |
| 警示用语： | Warning |
| 危险声明 | H315 - H319 |
| 预防措施声明 | P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313 |
| 危险分类 | Eye Irrit. 2 - Skin Irrit. 2 |
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 2 |
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