水溶液

The influences of ratio of liquid to solid, concentration of ethanol in solvent and leaching time on recovery of phenol and caustic soda and yield of fatty acid and sebacic acid were investigated.

在癸二酸传统生产工艺中的裂解工序后增加浸取工序回收游离碱和苯酚，通过正交试验，考察了液固比、浸取剂浓度和浸取时间对氢氧化钠和苯酚回收及对脂肪酸和癸二酸产率的影响，确定最佳回收工艺条件为：液固比2.5，浸取剂为95％的乙醇水溶液，浸取时间为15min。

In order to recycle extra caustic soda and increase purity of sebacic acid, the research work in this thesis includes: extra caustic soda recovery, purification of sebacic acid and determination of solubility of sebacic acid in water, ethanol, and ethanol aqueous solution.

但是，它的传统生产工艺中存在过量游离碱浪费，癸二酸产品纯度不高等问题。对此本文做了三方面的研究，包括改进癸二酸生产工艺回收过剩的游离碱；提纯癸二酸；测定癸二酸在乙醇、水、乙醇水溶液中溶解度。

Make up a 1.5-3% solution of your semicarbazone in 3 mL of ethanol.

用3 mL乙醇配成1.5-3%缩胺基脲的水溶液6。

Measure the optical rotation of the semicarbazone derivative solution in the polarimeter, following the procedure outlined in the Techniques Manual.

用旋光仪测得缩胺基脲衍生物水溶液的旋光度。

The invention relates to a nanometer gluconic acid smectite and a preparation technique, which is characterized in that: an alkali calcium bentonite and a gluconic acid are adopted as materials to react in the existence of the dispersant of ethanol-water solution.

本发明涉及纳米葡萄糖酸蒙脱石及制备工艺，其特征是：以碱性钙基膨润土和葡萄糖酸为原料，在乙醇水溶液分散剂的存在下反应。

Copolymerization by micellar polymerization [8] is the most usual method in which a surfactant such as sodium dodecyl sulfate is used in an aqueous solution to solubilize the hydrophobic monomer.

共聚胶束聚合[ 8 ]是最常用方法，其中表面活性剂，如十二烷基硫酸钠，是用在水溶液中，以solubilize疏水性单体。

The result shows that for both PCL homopolymers and PCL-b-PEG block copolymers, the spherulitic linear growth rate first increases with molecular weight and reaches a maximum, then decreases as molecular weight increases. Crystallization temperature has greater influence on the spherulitic growth rate of polymers with higher molecular weight.

当自由PEG在水中的占有面积S_o与单根PEG链段所占有的表面积S的比值S_o／S的值接近或小于3时，PEG链段对胶束形状的影响较小，PCL嵌段的影响占主导地位，易形成片状胶束；当S_o／S的值在3-10之间时，随着PCL嵌段分子量的增加，PCL-b-PEG嵌段共聚物在水溶液中自组装形成类似球状、棒状和蠕虫状胶束，是PEG与PCL嵌段共同的作用的结果；当S_o／S的值大于10时，易形成球状胶束。

OBJECTIVE To investigate the degradation kinetics of sodium formaldehyde sulfoxylate.

中文摘要：目的研究药用抗氧剂甲醛合次硫酸氢钠在水溶液中氧化反应的反应速率常数。

To determine the rate constants of oxidation reaction between sodium formaldehyde sulfoxylate and oxygen in aqueous solutions at different pH values, different temperatures, different buffer concentrations and different dissolved oxygen concentrations.

考查在不同PH值，不同缓冲液浓度，不同温度，不同溶解氧浓度的条件下甲醛合次硫酸氢钠在水溶液中与氧反应的反应动力学特征。

METHODS The residual concentrations of sodium formaldehyde sulfoxylate in the solutions were determined by iodimetry, the datas were fitted by linear regressions and then ...

在高精度电热恒温箱中在不断通入空气或医用纯氧的情况下，采用碘量法测定甲醛合次硫酸氢钠在水溶液中不同时刻的浓度，作出降解曲线，将测得的数据进行降解动力学方程的拟合并获得动力学参数，并计算反应速率常数。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。