戊醇

Using a simple and reliable apparatus,the solubilities of glutaric acid in water,ethanol,toluene,chloroform,n-butanol and acetone are determined by the analytic method.

用平衡法分别测定了戊二酸在水、乙醇、甲苯、氯仿、正丁醇、丙酮中的溶解度数据。

At the same time, for the alternatives, another set of devices was also set up according to balanced method. From above two experiments, we got solubility datas of succinic acid, glutaric acid and adipic acid in six solvents of water, ethanol, n-butanol,choloroform, acetone and toluene, of which most were measured for the first time.

由合成法和平衡法实验测定了丁二酸、戊二酸和己二酸三种溶质在水、乙醇、正丁醇、氯仿、丙酮、甲苯六种溶剂中的溶解度数据，其中大部分体系和溶解度数据是首次测定。

Coupling ML-PLLA/GA and glutamic acid capped ML-PLLA-GC were prepared by modifying with Glutaric anhydride and L-Glutamic acid, respectively.

借助IR、~1HNMR、UV、DSC、TG等分析手段对材料进行了表征，并考察了戊二酸酐和L-谷氨酸对甘露糖醇-聚乳酸性能的影响，实验结果表明：以。

Then two star-shaped oligomers with designed molecular weights 5000 g mol-1 and 10000 g mol-1, respectively, were synthesized from D, L-lactide and glycolide as raw materials and pentaerythritol as initiator under catalysis of dibutyltin oxide.

以合成的丙交酯和乙交酯为原料，季戊四醇为引发剂，氧化二丁基锡为催化剂合成出设计分子量为5000和10000两种预聚物。

The results showed that the ash content and the contents of cold water and hot water and benzyl ethanol extractives of Albizia falcataria are lower than that of Gmelina arborea, the contents of lignin and cellulose of Albizia falcataria is similar to that of Gmelina arborea. On the other hand, the contents of 1%NaOH extractive and hemicellulose of Albizia falcataria are higher than that of Gmelina arborea.

结果表明，南洋楹的灰分、冷热水抽出物和苯-醇抽出物含量低于石梓，Klason 木素和纤维素含量两者相当，但是南洋楹的 1％ NaOH 抽出物和戊聚糖含量明显高于石梓。

In the synthesis of canthaxanthin by selective catalylitic oxidating of βcarotene,CO2 was used as acidifying or alkalizing agent,which controlled reacting system acidity and protected polyene.,producing less by-products and increasing catalylitic oxidation selectivity.In the addition reaction of isoprene with hypochloric acid,1-chloro-2-methyl-3-buten-2-ol and l-chloro-2-methyl-3-buten-4-ol were made by controlling of the acidity with carbon dioxide i...

CO2作为酸碱调节剂和惰性气体，在β-胡萝卜素催化氧化合成角黄素反应中，可以控制反应体系酸性，保护原料中的双键，减少副反应发生，提高催化氧化反应的选择性；异戊二烯氯醇化生成1-氯-2-甲基-3-丁烯-2-醇和1-氯-2-甲基-3-丁唏-4-醇反应中，CO2代替有机酸作酸碱调节剂，控制次氯酸的生成速度，达到调控反应的目的，反应条件温和，不副产固体。

In this paper, starch was used as a char forming agent to all or partly replace pentaerythitol in Intumescent Flame Retardants, and investigated to effect on thermal degradation and flame retardancy of polyethylene intumescent system.

以淀粉作为膨胀阻燃体系中的成炭剂，取代或部分取代了膨胀型阻燃剂中的季戊四醇，研究了淀粉对膨胀阻燃剂及其与线性低密度聚乙烯膨胀体系的热降解行为和阻燃性。

The effects of catalyst synthesis and esterification reaction conditions on the yield of the isoamyl acetate were investigated.

将该催化剂用于醇酸反应制备乙酸异戊酯，考察了反应条件对酯化率的影响。

Two chiral centers of 〓 and 〓 are come fromchiral isoamyl alcohol and chiral octanol-2 respectively.

和〓的手性中心分别来自于手性异戊醇和手性辛醇-2。

This paper studied the synthesis of isoamyl acetate using silver phosphotungstomolybdate heteroployacid as catalyst.

制备了固体磷钼钨杂多酸银盐，并以此为催化剂，对醋酸异戊酯的合成反应进行了研究，探讨了催化剂用量、醇酸摩尔比、反应时间和催化剂重复使用对酯产率的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。