It can be dissolved in Methanol, ethanol and acetone, but not in water.
可溶于甲醇、乙醇、丙酮等有机溶剂，不溶于水。
It is not dissolved in ethanol without water, acetone, aether and grease. It is red in acid, reddish brown in neutral and dark red-brown in alkaline.
在酸性水溶液中呈透明的鲜艳红色，在中性水溶液中呈红棕色，在碱性水溶液中呈透明的深红棕色。
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