性质：白色粉末，不溶于水，溶于乙醇，遇强酸分成硬脂酸和金属盐。
Properties: White powder, insoluble in water, but soluble in alcohol. It will decompose into stearic acid and metal salt when meeting strong acid.
在这里，脂肪酸金属盐是选自硬脂酸锌、硬脂酸铝及硬脂酸锡中的至少一种。
Here, the fatty acid metal salt is preferably at least one kind selected from the group consisting of zinc stearate, aluminum stearate and tin stearate.
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