- 更多网络例句与一氯乙酸相关的网络例句 [注:此内容来源于网络,仅供参考]
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On the basis of above results, the reaction rectification tower to synthesize benzyl chloride was established.
目前,国内均采用间歇釜式生产,一氯乙酸生成的同时也生成了副产物二氯乙酸,反应终点二氯乙酸浓度在12-25%。
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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。
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The experimental results showed that, monochloroacetic acid and dichloroacetic acid enhanced photocatalytic hydrogen generation activity, but trichloroacetic acid did not improve it. The amount of produced H_2 increases almost proportionally to the irradiation time within 5 h irradiation. The photocatalytic oxidation of monochloroacetic acid and dichloroacetic acid mainly produced CO_2, HC1 and CH_2O, the photocatalytic oxidation of trichloroacetic acid mainly produced CO_2 and HCl.
实验表明,一氯乙酸、二氯乙酸的存在明显地提高了制氢反应效率,而三氯乙酸的存在却不能起到促进作用;反应5h内,反应生成氢的量与反应时间成线性关系;一氯乙酸、二氯乙酸光降解产物主要是CO_2、HCl和CH_2O,三氯乙酸光降解产物主要是CO_2和HCl;研究了溶液pH值对放氢反应的影响;在实验浓度范围内,一氯乙酸、二氯乙酸浓度对放氢反应的影响,表观上符合Langmuir-Hinshelwood关系式;考察了一氯乙酸、二氯乙酸在光催化剂表面的吸附。
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The decisive influencing factor of viscosity in carboxyl-methylation was cross-linking reaction. Carboxyl-methylation was the main influencing factor of solubility and swelling capacity in modification of high content amylose starch. The structure and gelatinization property of different amylose content were analyzed with an Olympus Vanox BHS-2 multi-function optic microscope, and the results were as follows. The structure of ordinary cornstarch was different from the high amylose; gelatinization temperature and pH value of starch were affected deeply by amylose content, but had little difference between the gelatinization of high content amylose starch contained 50% and 70% amylose; pH value had much more effect than temperature on the gelatinization of high content amylose cross-linked starch. Monochloroacetic acid consumption, alcohol concentration and pH value influenced the starch carboxyl-methylation. When alcohol concentration was 60%, pH value 10, monochloroacetic acid/starch mass ratio 55%, the carboxyl-methylation of high amylose cross-linked cornstarch had the best result. With the In-Vitro digestibility model and biodegradation experiment, the digestibility and biodegradability of high amylose cornstarch and its modified starch were detected.
采用Brabande粘度测定仪和Olympus Vanox BHS-2型多功能光学显微镜等分析手段对链淀粉含量50%和70%的高链玉米淀粉及其交联和交联羧甲基化淀粉的结构和性质进行了表征和分析,结果表明,普通玉米淀粉结构与含链淀粉50%和70%高链玉米淀粉结构不同;高链淀粉比普通淀粉难糊化,高链改性淀粉糊化受pH值影响较大,受温度影响较小;淀粉的冻融稳定性、透光率、溶解度、膨胀度和粘度受链淀粉的含量和改性的影响,但是,链淀粉含量超过50%时,则链淀粉含量对淀粉的膨胀度和溶解度影响不大;改性淀粉性质的影响因素中,影响粘度主要因素是交联反应,影响透明度、溶解度和膨胀度主要因素是羧甲基化改性;一氯乙酸用量、反应时乙醇浓度及碱性条件都会影响高链淀粉及其交联淀粉的羧甲基化改性效果,制备羧甲基化改性淀粉的最佳工艺是在pH值为10的60%的乙醇浓度介质中按一氯乙酸/淀粉质量比为55%进行取代反应。
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The five halogenated acetic acids, monochloroacetic acid, dichloroacetic acid, trichloro acetic acid, monobromoacetic acid, dibromoacetic acid, were separated on an IonPac AS19 column specially designed for oxyhalides, and the separating conditions were optimized.
利用IonPac AS19大容量阴离子交换色谱柱对水中的一氯乙酸、二氯乙酸、三氯乙酸、一溴乙酸、二溴乙酸5种卤代乙酸进行了分离,优化了分离条件。
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Methods Immobilizing α-amylase on chitosan by using trichloroacetic acid or chloroacetic acid as cross-link agent.
以自制壳聚糖为载体,一氯乙酸或三氯乙酸为交联剂,将α-淀粉酶固定化。
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Results showed that extraction abilities depends on the hydrophobic of solutes which pK〓 values are similar, e. g. acetic, propionic, butyric and valeric acids, while pK〓 values affect dominantly the extraction abilities of acids with similar hydrophobic, e. g. formic, acetic, chloroacetic, dichloroacetic, and trichloroacetic acids. Meanwhile, diluents and TOA concentration also affect the extraction equilibria of acids through the specific basicity of TOA .
TOA对酸性差别很小的一元羧酸如乙酸、丙酸、丁酸、戊酸的萃取能力主要取决于羧酸的疏水性参数logP;TOA对疏水性参数差别较小的羧酸如甲酸、乙酸、一氯乙酸、二氯乙酸、三氯乙酸的萃取能力主要取决于羧酸的电性参数;稀释剂的种类、TOA的浓度都会影响TOA的表观碱度pH〓,并通过TOA的表观碱度影响羧酸的萃取平衡。
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The optimal conditions determineded by experiments were as follow: chloracetic acid : sodium carbonate : isopropyl xanthate : ethylamine=l : 0.58 : 1 : 1.05, water usage is 30 ml/O.lmol chloracetic acid, esterification temperature was 80癈, esterification time was 2h, ammonolysis temperature was 70 C, ammonolysis time was Ih.
实验得出最佳工艺条件为:一氯乙酸:碳酸钠:异丙基黄药:乙胺=1:0.58:1:1.05,水用量为30 ml/0.1mol一氯乙酸,酯化温度80℃,酯化时间2小时,氨解温度70℃,氨解时间1小时。
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And the application of glycollic acid in the fields of chemical cleaning, auxiliaries and materials were introduced in detail.
概述了羟基乙酸几种主要工业合成方法的工艺条件及存在的主要问题,即氯乙酸水解法、氰化法、甲醛羰基化法和一氯乙酸钾水解法。
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A brief account of technique conditions of several main technique routes for synthesizing glycollic acid and existing main problems in it are given.
概述了羟基乙酸几种主要工业合成方法的工艺条件及存在的主要问题,即氯乙酸水解法、氰化法、甲醛羰基化法和一氯乙酸钾水解法。
- 更多网络解释与一氯乙酸相关的网络解释 [注:此内容来源于网络,仅供参考]
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chloroacetic acid:氯乙酸
[摘要]1.简述 氯乙酸(chloroacetic acid)是醋酸的氯取代产品,是一氯醋酸、二氯醋酸、三氯醋酸的总称. 由于用途最广泛的是一氯醋酸(MCAA,monochloroacetic acid),通常就把MCAA简称为氯乙酸.
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chloroacetic acid:一氯乙酸
一开 surface section | 一氯乙酸 chloroacetic acid | 仪器 apparatus
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Monobromated camphor:一溴樟脑
钼酸 Molybdic acid | 一溴樟脑 Monobromated camphor | 一氯醋酸(一氯乙酸) Monochloracetic acid
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Monochloracetic acid:一氯醋酸(一氯乙酸)
一溴樟脑 Monobromated camphor | 一氯醋酸(一氯乙酸) Monochloracetic acid | 醋酸吗啡 Morphine acetate
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Monochloro Acetic Acid:一氯乙酸
戊二醛 LUTARALDEHYDE | 一氯乙酸 Monochloro Acetic Acid | 磷酸 phosphoric acid
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Monochloro Acetic Acid:一氯醋酸
氨基乙酸 glycine technical | 一氯醋酸 monochloro acetic acid | 6-氯烟酸 6-Chloro Nicotinic Acid
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Monochloro Acetic Acid:一氯乙酸 , 氯乙酸
molybdenum salts 金属钼盐 | monochloro acetic acid 一氯乙酸 , 氯乙酸 | mono chloro acetone 一氯丙酮
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monochloroacetic acid:一氯醋酸,氯乙酸(一氯醋酸)
monochloro-acetyl chloride 氯乙酰氯 | monochloroacetic acid 一氯醋酸,氯乙酸(一氯醋酸) | monochloroacetic acid anhydride 氯乙酸酐
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monochloroacetic acid anhydride:氯乙酸酐
monochloroacetic acid 一氯醋酸,氯乙酸(一氯醋酸) | monochloroacetic acid anhydride 氯乙酸酐 | monochloroacetone 氯丙酮,一氯丙酮
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trichloroacetic acid:三氯乙酸
新一代换肤治疗 (TCA Peeling) 彻底治疗肌肤老化问题Easy Peel是目前最安全及简便的一种三氯乙酸(Trichloroacetic Acid)化学换肤之一,含15%三氯乙酸(Trichloroacetic Acid),可快速地更新皮肤细胞,使抗氧化治疗面霜有效地渗入皮肤,