物理性能：硬脂酸钙，为白色轻质粉末，不溶于水，溶于热的乙醇和乙醚，在空气中吸收水分，遇强酸分解成硬脂酸和相应的钙盐。
Properties : white light powder, insoluble in water but soluble in ethanol and aether. absorbs moisture from the air. decompounds into stearate and calcium when meeting strong acid.
由于陶瓷碎片的物理性能和化学性能都十分稳定，不能被分解、腐蚀，甚至打碎了后填埋上千年也没有什么改变。
Since the physical and chemical properties of ceramic fragments are very stable and can not be broken down, corrosion, and even buried depth for a thousand years but not changed.
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