CAS号:10049-05-5
品名:无水氯化铬(Ⅱ)Chromium(II)Chloride
中文别名:亚铬酸;
英文别名:Chromium(II)chloride;dichlorochromium;
分子式:Cl2Cr
分子量:122.902
精确质量:121.878
Psa:0.0
RTECS号:GB5250000
EINECS号:233-163-3
MDL号:MFCD00010947
PubChem号:24868545
外观与性状:灰色绿色粉末
密度:
熔点:824ºC
稳定性:Stable, but decomposes in water or moist air. Incompatible with water, oxidizing agents, active metals.
储存条件:库房低温,通风,干燥
WGK Germany:3
危险品运输编码:UN3260
危险类别:8
包装等级:III
危险品标志:Xn
信号词:Warning
危险性防范说明:P261; P305 + P351 + P338
危险标志:GHS07
危险性描述:H302; H315; H319; H335
简介:Chromium(II)chlorideisaninorganiccompoundwiththeformulaCrCl2.Thiscrystallinesolidiswhitewhenpure,howevercommercialsamplesareoftengreyorgreen;itishygroscopicandreadilydissolvesinwatertogivebrightblueair-sensitivesolutionsof[Cr(H2O)4]Cl2.Chromium(II)chloridehasnoindustrialusesbutisusedonalaboratory-scaleforthesynthesisofotherchromiumcomplexes.
用途:还原剂。使卤化物脱卤,使胺氧化物脱氧;使环氧化合物脱城成烯;醌还原成氢醌。也用于甾酮的2,4一二硝基苯脐保护基的脱除和烯二酮还原成二酮等。
铬