一氯乙酸

Carboxymethyl Chitosan was synthesized under conditions of basification and heat by chitosan and monochloroacetic acid.

以壳聚糖与一氯乙酸在碱性条件下通过加热制备了羧甲基壳聚糖。

Major procurement of goods: a three-chlorosilanes, dichloromethane, AE activity ester, 3-iodine Silane, special acid, pentyl chloride, triethylamine, thiadiazole, tetrazolylazo acid, 2 - Acetamide, tetrahydrofuran, the four-guanidine, isopropanol, five phosphorus trichloride, sodium vary bitter, acid, sodium phenylacetate, 6-2 silicon n-amine, Ethylacetoacetate , Methyl isobutyl ketone, potassium dihydrogen phosphate, aluminium oxide, DL methionine, N, N-dimethylaniline, NN-diethyl aniline, 4 sodium EDTA, Anhydrous sodium sulfate, ammonium sulfate, potassium sulfate, sodium acetate, sodium carbonate, DMC, formic acid, sodium chloride medicinal, oxalate, protopine, acetone, alcohol, acetic acid, vinegar Ethyl, butyl acetate, methanol, ethanol (anhydrous, industrial, medicinal), formaldehyde, Ye Jian (30%), hydrochloride (industrial-grade, refined grade, reagent level), sulfate (98%), Ammonia, calcium carbonate, chlorine dioxide, 6 - APA ,7-ACA ,7-ADCA ,7-ANCA, sulbactam, ceftazidime activity ester, Deng salt (hydroxymethyl-K, acid precursors Potassium, sodium dihydrogen methyl), resin, the enzyme, water treatment agent, Xiao Mo agent, demulsifier, flocculants, activated carbon, all kinds of medicinal materials, All kinds of additives

三甲基一氯硅烷、二氯甲烷、AE活性酯、三甲基碘硅烷、特戊酸、特戊酰氯、三乙胺、噻二唑、四氮唑乙酸、二甲基乙酰胺、四氢呋喃、四甲基胍、异丙醇、五氯化磷、异辛酸钠、苯乙酸、苯乙酸钠、六甲基二硅胺烷、乙酰乙酸乙酯、甲基异丁酮、磷酸二氢钾、三氧化二铝、DL蛋氨酸、N，N-二甲基苯胺、NN-二乙基苯胺、乙二胺四乙酸四钠、无水硫酸钠、硫酸铵、硫酸钾、醋酸钠、碳酸钠、碳酸二甲酯、甲酸、药用氯化钠、草酸、片碱、丙酮、正丁醇、冰醋酸、醋酸乙酯、醋酸丁酯、甲醇、乙醇、甲醛、液碱（30％）、盐酸（工业级、精制级、试剂级）、硫酸（98％）、氨水、碳酸钙、二氧化氯、6－APA、7－ACA、7－ADCA 、7－ANCA、舒巴坦、头孢他啶活性酯、邓盐(羟甲基钾、前体酸钾、二氢甲基钠)、树脂、生物酶、水处理剂、消沫剂、破乳剂、絮凝剂、活性碳、各种药用辅料、各种添加剂

The surface hydroxyl group onto magnetic polyvinyl acetate nanoparticles can be obtained by saponification reaction on their surface.

结果表明，磁性聚苯乙烯颗粒与丁二酸酐发生Freidel-Crafts酰基化反应，可以在颗粒表面引入少量羧基；磁性聚甲基丙烯酸甲酯颗粒分别与乙二醇、二缩三乙二醇、聚乙二醇等发生醇-酯交换反应，可以在颗粒表面接枝不同分子链长度的末端羟基；磁性聚醋酸乙烯酯颗粒经过醇解或皂化反应可以获得表面羟基；磁性聚丙烯酸甲酯颗粒通过乙二胺或1，6己二胺的胺解反应可以得到表面氨基，继而与一氯乙酸反应可以引入亚胺二乙酸基团。

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。

The optimal conditions were obtained that isopropanol concentration 95% mass ratio of sodium hydroxide to soybean dietary fiber and monochloracetic acid 1.00:1.25:1.20, alkalization time 60 minutes, etherification temperature 70 degrees C, and etherification time 120~150 minutes.

以大豆膳食纤维为原料，一氯乙酸为醚化剂，异丙醇为溶剂，制备了羧甲基大豆膳食纤维，研究了异丙醇溶液质量分数、NaOH用量、MCA用量、碱化时间、醚化温度、醚化时间对产品羧甲基质量分数的影响。

The effects of reaction temperature on the yield and the purity of monochloroacetic acid under a determined molar ratio of raw materials were investigated.

用氯气与醋酸在氯乙酰氯催化下合成了一氯乙酸。

The influence of the use level of base and monochloroacetic acid on the degree of substitution in CMS,the influence of DS and H/Na(ratio of free and salified carboxylic acid in CMS)on swelling and disintegrating of CMS have been discussed.

考察了碱和一氯乙酸用量对CMS取代度的影响及DS和CMS中游离羧基和成盐羧基比对崩解剂吸水溶胀性能的影响。

Under alkaline conditions, carboxymethyl konjac glucomannan with different degree of substitution was prepared through reaction of monochloroacetic acid and konjac glucomannan using isopropyl alcohol as dispersing agent.

以异丙醇为分散剂，在碱性介质中一氯乙酸和魔芋葡甘聚糖反应制备了系列羧甲基魔芋葡甘聚糖。

Carboxymethyl fenugreek gum with different degree of substitution was synthesized with NaOH and sodium monochloroacetate powder as the basifying and etherifying agents.

通过加入NaOH与一氯乙酸钠固体进行香豆胶的碱化和醚化，制备了不同取代度的羧甲基香豆胶。

Results showed that the optimum condition in carboxy methylation were: 15 percent sodium hydroxide , 20 % chloroacelic acid, alkalified 35℃, etherification 50℃, etherification time 120 min.

甜菜膳食纤维羧甲基化改性的最佳条件：15％氢氧化钠、20％一氯乙酸、35℃碱化温度、50℃醚化温度、2.0h醚化时间。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。