查询词典 chloride

Keywords amino acid methyl ester hydrochloride;amino acids;methanol solution of thionyl chloride;thionyl chloride;synthesis

氨基酸甲酯盐酸盐；氨基酸；二氯亚砜-甲醇溶液；二氯亚砜；合成

Thionyl chloride and bromine were used as raw materials to synthesize α-bromo isobutyric acid chloride which will substitute α-bromo isobutyric acid bromine.

研究了以异丁酸、氯化亚砜和液溴为主原料合成α-溴代异丁酰溴的替代产品———α-溴代异丁酰氯的工艺。

Self-catalyzed characteristic of choline chloride based on kinetics is further proved by studying the effect of reactant concentration during the process of synthesis of choline chloride from the chloroethanol and trimethylamine.

通过研究由氯乙醇和三甲胺反应合成氯化胆碱过程中反应物浓度的变化规律，进一步从动力学角度验证了氯化胆碱的自催化特性。

The changes of postharvest physiology, storage quality and oxidative changes of fatty acid of unshelled pine nut (Pinus koraiensis Sieb.et Zucc.) 'Korea pine'and shelled pine nut which were cased in 30 μm purple polyvinyl chloride bag and 30 μm white polyvinyl chloride bag, general 40 μm polyethylene bag, respectively for 180 days at ambient temperature(20-30℃).

以朝鲜红松带壳松籽和去壳松仁为试材，将其分别放在30 μm紫色聚氯乙烯袋、30 μm白色聚氯乙烯袋和40 μm白色聚乙烯袋中进行自发气调贮藏，研究了常温下（20～30℃）贮藏180 d期间松籽种仁的生理、品质和脂肪酸氧化变化。

This article describes a brand - new method as viscometry to study the principle and method of water treatment coagulant polyaluminum chloride form existing in the aqueous solution gets the character value of hydrated ion group : A2 , thereby lays foundation for understanding the form of polyaluminum chloride in the aqueous solution provides the directive information for developing efficient new kind of high effective coagulant .

介绍了一种全新的方法--粘度法研究水处理混凝剂在水溶液中的形态的原理和方法，求得水化离子团特征值A_(2)，从而为进一步摸清聚合氯化铝在水溶液中的形态奠定了基础，为开发新型高效混凝剂提供有指导意义的信息。

Methoxystilbene and 2-methoxy-4'-nitrostilbene were synthesized from benzyl chloride and nitrobenzyl chloride by the Wittig reaction, and used as intermediates for the synthesis of the final product fluorescent whitener FP4,4'-bis(2-methoxystyrylbiphenyl via reduction and diazotisation of the latter followed by reaction with the former in the presence of NaOH.

以氯化苄和对硝基氯苄为原料，经Wittig反应合成中间体：2-甲氧基-二苯乙烯和2-甲氧基-4'-硝基-二苯乙烯。后者经还原反应、重氮化反应后，在氢氧化钠存在下与前者反应生成最终产品荧光增白剂FP4，4'-双-2-(甲氧基苯乙烯基联苯。为该类荧光增白剂的合成开辟了一条新路线

Reagent-grade cadmium chloride, copper chloride, and zinc sulfate were used to conduct all studies.

试剂级氯化镉，氯化铜，硫酸锌和使用进行的所有研究。

The determination of zinc chloride and ammonium chloride in electrolyte of dry cells was stu died based on the principle of complexometric titration and acid alkali titration.

应用络合滴定和酸碱滴定的原理，对干电池电解液中氯化锌氯化铵的测定进行了探讨。

Compare the crystalline methods of zirconyl chloride in the preparation of zirconium dioxide by lime-roasting method,and a new crystalline method of adding calcium chloride was proposed.

对石灰制取二氧化锆生产中结晶氯氧化锆的方法进行了比较，提出了加氯化钙结晶的新工艺，对影响氯氧化锆结晶率的因素进行了研究。

The super microporous tin-doped zirconium oxides were successfully synthesized by sol-gel method using zirconyl chloride as Zr source, tin chloride as Sn source and cetyltrimethylammonium bromide as template under hydrothermal or refluxing conditions.

以二氯氧锆和四氯化锡为金属源，十六烷基三甲基溴化铵为模板剂，用溶胶-凝胶法在水热或回流条件下成功合成出了锡掺杂的超微孔二氧化锆材料。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。