查询词典 chloroacetic acid

Carboxymethyl dimethyl sulfonium chloride as a novel aquatic feed attractant was synthesized with chloroacetic acid, methyl sulfide and in solvent free system.

运用无溶剂合成方法，利用较低成本的氯乙酸为原料与二甲硫醚反应，合成新型水产动物诱食剂——氯化羧甲基二甲基锍。

The yield of borneol and isoborneol was 52.93%,and selectivity for borneol was 60.46%at the conditions of programmed temperatures,reaction time 315 min,saponification time 1h,mass part of catalyst 5%,and terpineol:chloroacetic acid 100∶25.

酯化反应采用程序升温，时间315 min，皂化时间1 h。催化剂用量为松节油质量的5%，松节油∶氯乙酸为100∶25时，龙脑得率为52.93%，正龙脑的选择性为60.46%。

Chitosan was modified by reaction with ammonium thiocyanate and chloroacetic acid.

壳聚糖是甲壳素的脱乙酰基产物[1]，它以其来源广泛、天然无毒、可生物降解的特性，在水处理中的应用较为广泛。

Beet alkali was synthesized from trimethylamine and chloroacetic acid .

以三甲胺及一氯乙酸为原料合成甜菜碱。

Batata carboxymethyl starch dregs is synthesized by the reaction of batata starch dregs (C 6H 9O 4OH) and chloroacetic acid in solvent of methanol under alkaline condition.

以甲醇为溶剂，红薯淀粉渣(C6 H9O4OH)和氯乙酸为原料，在碱性条件下合成红薯羧甲基淀粉渣。

Synthesis of n-butyl chloroacetate from chloroacetic acid and n-butanol in the presence of stannic chloride pentahydrate was studied.

在五水四氯化锡存在下，由氯乙酸和正丁醇合成氯乙酸正丁酯。

Synthesis of ethyl chloroacetate with chloroacetic acid and ethanol catalysed by GdCl2-EDTB-H3SiW12O40was investigated.

研究了反应时间、醇酸比、带水剂用量及催化剂用量对杂多酸化合物GdCl2-EDTB-H3SiW12O40催化合成氯乙酸乙酯的影响，确定了最佳反应条件，醇酸摩尔比1.5∶1，带水剂量10mL，催化剂使用量为酸的1.0%，反应时间2.5h

As concerning synthesis of 2-ethylhexyl chloroacetate, effects of catalyst dosage, molar ratio of 2-ethylhexanol to chloroacetic acid, reaction time, dosage of water entrainer on esterification rate were studied.

将此固体超强酸酯用于氯乙酸和异辛醇合成氯乙酸异辛酯的酯化反应，考察了异辛醇和氯乙酸的摩尔比、催化剂用量、反应时间、带水剂环己烷的用量对酯化反应的影响。

Isooctyl chloroacetate was synthesized by chloroacetic acid and isooctyl alcohol with methyl benzenesufonat as catalysts under the irradiation of microwave.

在微波辐射下，以对甲苯磺酸为催化剂合成氯乙酸异辛酯。

Isoamyl chloroacetate is synthesized from chloroacetic acid and isoamyl alcohol with mordenite as catalyst and benzene as water carrying agent under the irradiation of microwave.

研究了微波辐射作用下丝光沸石催化氯乙酸与异戊醇的酯化反应。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。