氯乙酸

The isopropyl chloracetate was synthesized by esterification of chloracetic acid with isopropyl alcohol using aluminium phosphotungstate as catalyst.

以氯乙酸和异丙醇为原料，磷钨酸铝作催化剂进行酯化反应，合成氯乙酸异丙酯。

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。

The optimum synthetic conditions of ethyl chloroacetate are: molar ratio of chloroacetic acid to ethanol is 1:8, the quantity of catalyst[Fe2(SO4)3 xH2O] is 10% of the mass of chloroacetic acid, reaction time is 1 hour, 5A zeolite was used as dehydrating agent. In these conditions, the yield of ethyl chloroacetate was up to 73%.

用Fe_2(SO_4)_3·xH_2O作为催化剂合成氯乙酸乙酯的较佳反应条件是：酸醇物质的量之比为1：8，催化剂用量为氯乙酸质量的10％，以5A分子筛作为脱水剂，回流时间1h，收率达73％以上。

Meanwhile, the optimum operation conditions obtained by orthogonal experiment are as follows: microwave power is 585 W, irradiation time is 30min, the amounts of catalyst is 1.5% of feed stock, mole ratio of alcohol to acid is 1.5:1, the yield of isoamyl chloroacetate is 93.2% Comparing with conventional heating method, the heating time under microwave irradiation is less than 1/14 of the former.

最佳工艺条件为：微波功率585W，加热时间为25min，催化剂用量为2.0%，醇酸比为1.5：1，此条件下氯乙酸异戊酯的产率为93.2%。对比实验结果表明，微波辐射加热法合成氯乙酸异戊酯的反应速度至少是常规加热法的14倍。

Production process and market requirement of chloroacetic acid at home and abroad were introduced.

钱伯章，氯乙酸的生产工艺和市场分析介绍了国内外氯乙酸的生产工艺和市场需求。

A series of novel polyethylene glycol derivatives was synthesized by esterification of chloroacetic acid with polyethylene glycol.

介绍了一氯乙酸在农药、医药、日用化工及有机工业中的应用，评述了一氯乙酸的工业生产现状。

Results: Recoveries over 90%,the relative standard deviation of sample (n=6) was 1.8% for dichloroacetic acid and 1.9% for trichloroacetic acid and the detection limit was 0.83 μg/L and 0.4 μg/L respectively.

结果：本法的加标回收率在90%以上，6份平行样品测定的相对标准偏差二氯乙酸为1.8%，三氯乙酸为1.9%，检出限依次为0.83μg/L和0.4μg/L。

The photocatalytic degradation of dichloroacetic acid and trichloroacetic acid solution with titanium dioxide(TiO_2) thin films is investigated in the paper.

用常压化学气相沉积法镀TiO2薄膜，以紫外灯为光源，对二氯乙酸和三氯乙酸溶液进行光催化降解，并证实了此过程符合一级反应动力学方程。

This study developed a new method on the determination of carcinogenic disinfection by-products-trace dichloroacetic acid and trichloroacetic acid in tap water by ion chromatography-electrospray-tandem mass spectrometry(IC-ESI-MS/MS).

建立了一种采用离子色谱-串联电喷雾四级杆质谱联用技术检测自来水中可致癌的饮用水消毒副产物二氯乙酸和三氯乙酸的方法。

The rather amount of dichloroacetic acid not only enhances consumption of raw materials, but also increases the cost, with the difficulty to separate it from the product later the quality of products drops. Dichloroacetic acid is of a few uses causing the huge waste of the fund and equipments.To control the dichloroacetic acid coming out and decrease the consumption o

通过大量实验，对反应精馏技术的原理进行了理论研究，从中探索得出反应精馏法合成氯化节、氯乙酸等有机氯化物的工艺路线，为氯化节和氯乙酸的生产提供了一条新的生产工艺，为反应精馏技术应用的理论研究拓展了新的内容，并为工程设计提供了基本数据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。