英语释义

1. a chemical compound with five molecules of water

片语

cefazolin pentahydrate五水头孢唑啉

Pentahydrate Borax英文名

Ceftazidime Pentahydrate头孢他啶

tetrachlorostannane pentahydrate五水四氯化锡

Raffinose Pentahydrate棉子糖

Borax Pentahydrate五水硼砂

Ammonium tungstate pentahydrate五水合氧化钨铵

Borate pentahydrate五水硼酸盐

pentahydrate crude五水合物原矿

英汉例句

• 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；

• methyl cinnamate was synthesized in the presence of the catalyst of pentahydrate stannic chloride, and characterized by melt i ng point, elementary analysis and infrared spectrum.

  在五水四氯化锡催化下合成了肉桂酸甲酯，并用熔点、元素分析和红外光谱进行了表征。

• 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。

• the preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

  用经高温煅烧后的闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜。

• ethyl cinnamate was synthesized by esterification of cinnamic acid with ethanol in the presence of stannic chloride pentahydrate catalyst.

  在五水四氯化锡存在下，肉桂酸和乙醇发生酯化反应合成肉桂酸乙酯。

• 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。

• 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。

• 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。