商品名：硫酸铬，水合

别 名：Chromic sulfate
Chromium sulfate hydrate
相关CAS：10101-53-8

英文名：Chromium(III) sulfate hydrate

产 地：湖南

Cas号：15244-38-9

MDL：

Beilstein：

EINECS：

分子结构：

分子式：Cr2(SO4)3•6H2O

分子量：500.2700

备注：

性状：绿色粉末或暗绿色片状。本品除六合物外，尚含有多种不同结晶水，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，其无水物则不溶。难溶于醇。
熔点：90ºC

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

存储：易吸潮

用途：三价铬钝化、电镀添加剂；用于制备含铬催化剂，印染工业用作媒染剂，用于玻璃和陶瓷釉彩和腐蚀阻抑剂。

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