Chromium(II) Chloride

[10049-05-5] Cl2Cr (MW 122.92) InChI = 1/2ClH.Cr/h2*1H;/q;;+2/p-2/f2Cl.Cr/h2*1h;/q2*-1;m InChIKey = XBWRJSSJWDOUSJ-ORSGRNIKCF (reducing agent for dehalogenation of organic halides, especially allylic and benzylic halides, and for transformation of carbon–carbon triple bonds leading to (E)-alkenes; conversion of dibromocyclopropanes to allenes; preparation and reaction of allylic chromium reagents; reduction of sulfur- or nitrogen-substituted alkyl halides to give hetero-substituted alkylchromium reagents) Physical Data: mp 824 °C; 2.751 g cm−3. Form Supplied in: off-white solid; commercially available. Solubility: soluble in water, giving a blue solution; insoluble in alcohol or ether. Handling, Storage, and Precautions: very hygroscopic; oxidizes rapidly, especially under moist conditions; should be handled in a fume hood under an inert atmosphere (argon or nitrogen).