Appearance: Red crystal. Easily deliquescent in wet air, soluble in water, alcohol and acetone, it becomes light-blue powder after losing the crystal water.

• 性状：红色结晶；在湿空气中易潮湿，易溶于水，也溶于乙醇、醚和丙酮；脱水后呈浅兰色粉末。