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1·Practically insoluble in water;

几乎不能溶解在水中；

2·Solubility: soluble in water, slightly soluble in alcohol, Practically insoluble in acetone.

溶解性：溶于水，盐酸微溶于乙醇，硫酸不溶于丙酮。

3·White, crystalline powder or colorless crystals, freely soluble in water, practically insoluble in ethanol.

白色结晶性粉末或无色结晶体，易溶于水，在乙醇中不溶。

4·It is practically insoluble in water and only very slowly soluble in diluted acids, so it is largely converted for fertilizing purposes into superphosphate.

磷酸三钙几乎完全不溶于水，在稀酸中溶解也极为缓慢。所以，作为肥料，通常得把磷酸三钙转化为过磷酸钙。