1. The preparation of sodium metasilicate pentahydrate using aqueous crystallization method is studied.
对采用溶液结晶法制取五水偏硅酸钠进行了研究。
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2. The decomposition temperature and heat of cefazolin sodium pentahydrate were measured by the differential scanning calorimetry technique.
采用差热分析法测定头孢唑林钠的分解温度和分解热；
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3. Compared the catalytic activity of ferric chloride hexahydrate, stannic chloride pentahydrate and sodium bisulfate monohydrate for synthesis of nerolin bromelia.
比较了六水三氯化铁、五水四氯化锡和一水硫酸氢钠催化合成橙花素的催化活性。
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4. A new process which produce copper sulfate pentahydrate and activated zinc oxide from the used catalyst by soaking in complex acid has been introduced in this paper.
本文介绍采用络合酸浸法以废甲醇催化剂为原料制备五水硫酸铜和活性氧化锌的新工艺。
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5. The present market of sodium metasilicate pentahydrate was outlined, and then the experimental technique of preparing sodium metasilicate pentahydrate from the waste silica gel was introduced.
概述了五水偏硅酸钠的市场现状，介绍了以废硅胶为原料生产五水偏硅酸钠的实验方法。
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6. The present market of sodium metasilicate pentahydrate was outlined, and then the experimental technique of preparing sodium metasilicate pentahydrate from the waste silica gel was introduced.
