| By dissolving chromium hydroxide in perchloric acid, and subsequent cautious evaporation, short green deliquescent needles of chromium perchlorate, soluble in alcohol, are obtained. Two bluish-green perchlorates, probably derivatives of the hex-aquo base, [Cr(H2O)6](ClO4)3 and [Cr(H2O)6](ClO4)3.3H2O, have been described. |