This article USES the direct double decomposition method to synthesis zinc gluconate, through adding ethyl alcohol to reduce its watery solution solubility and to obtain its crystal.

采用直接复分解法合成葡萄糖酸锌，通过滴加乙醇降低它在水溶液中的溶解度从而得到它的晶体。

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Single crystal of spectinomycin dihydrochloride was cultivated by natural cooling method according to its characteristic of solubility.

根据盐酸大观霉素的溶解度特性，采用自然冷却法培养出单晶。

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The solubility curve for cadmium nitrate tetrahydrate (CNT) has been ditermined. the CNT crystal can be grown by slow cooling solution technique.

测定了四水硝酸镉（CNT）溶解度曲线，采用降温法培养出CNT 单晶。

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