硫酸铬（六水）

性状描述: 绿色粉末或深绿色片状结晶。除六水合物外，尚有无水物和多种含不同结晶水的化合物，最多可达18分子结晶水。色泽由绿到紫不等。含结晶水的可溶于水，无水物则不溶。最小致死量(大鼠，静脉)144mg/kg。有腐蚀性。

质量标准: CP,用于合成： 外观Appearance green to dark green powder,crystals X-射线衍射分析X-Ray Diffraction Conforms to standard ICP Assay Confirms chromium component Cr 18%-26% (titration with sodium thiosulfate) typically 19%-21% SO4 50%-73%(gravimetric with barium chloride) typically 55%-58% PH 1.0-2.5 (5%, H2O) 技术指标 电镀级 Cr2(SO4)3·6H2O,% ≥98.0 水不溶物Insoluble matter in water,% ≤0.02 氯化物(Cl)Chloride,% ≤0.01 铝(Al)Aluminum,% ≤0.05 铁(Fe)Iron,% ≤0.01 钙(Ca)Calcium,% ≤0.01 钠(Na)Sodium,% ≤0.05 钾(K)Potassium,% ≤0.05 99.99% metals basis: 外观Appearance green to black powder, crystals X-射线衍射分析X-Ray Diffraction Conforms to standard 纯度Purity ≥99.99% Based on Trace Metals Impurities ICP Assay Confirms chromium and sulfur component Cr 15% - 25% (titration with sodium thiosulfate) 痕量金属分析total metallic impurities ≤200ppm by ICP Atomic emission

储存条件: 密封保存。

用途: 分析试剂。媒染剂。玻璃和陶瓷彩釉制造。