A new ester guerbet alcohol acetate is synthesized.
合成了一种新的乙酸2-辛基十二烷醇酯。
This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials.
这些香料都是以草酸二乙酯与相应的醇为原料,通过酯交换反应来合成的。
The application of four acids as catalyst in the synthesis of mixing ester from mixing alcohol was studied.
本文研究了四种酸催化剂用于工业混醇与乙酸酯化合成混合酯的催化性能。
Conclusion: All water, alcohol and ester extracts of TFB have effects of relieving a cough, eliminating expectoration, antasthmatic, analgesia, anti-inflammation and sedation.
减少自主活动次数。结论:水半夏水提物、醇提物和酯提物均有止咳、祛痰、平喘、镇痛、抗炎和镇静作用。
Yellow serofluid is a by-product during Luzhou style liquor production, which contains a large proportion of flavor components such as acid, ester, alcohol, aldehyde.
黄浆水是浓香型曲酒生产过程中产生的副产物,富含酸、酯、醇、醛等酒类所需香味成份。
The method of seeking rectifying factors in the mixed sample of alcohol, aldehyde and ester with chromatography is introduced.
介绍运用色谱技术对醇、醛、酯混合标样求校正因子的方法。
Through chromium sour oxidize propyl alcohol system ester law study in sulphuric acid acetic acid system in, proply acetate and proply propanoate form mechanism, and related influencing factor.
通过铬酸氧化丙醇制酯法,研究在硫酸-乙酸体系中,乙酸丙酯及丙酸丙酯的形成机理,及相关影响因素。
The constituents from pickle brine extracted with ethyl ether and identified by GC MS. In the result, 8 acids, 4 alcohol, 2 nitriles, 2benzines and 1 ester were identified.
首先,对雪里蕻腌菜卤汁的乙醚萃取浓缩液组分进行了鉴定,结果发现有机酸组分8个,醇类组分4个,腈类组分2个,酯类组分1个,芳香烃2个。
Lightcolored rosin ester with Gardner color 2-4 was prepared by reacting rosin with alcohol in the presence of a new CLC catalyst.
松香在新型催化剂(CLC)存在下与醇发生酯化反应,生成加纳色号2~4的浅色松香树脂。
Esterification is a common organic reaction, usually with the catalysis of acid carboxylic acid and alcohol produce ester.
酯化反应是常见的有机反应,通常是在酸催化作用下由羧酸与醇反应生成酯。
The results indicated that the change process and the change trend of alcohol, acid, aldehyde and ester compounds were different.
发现了香气成分中部分醇类、酯类、醛类和酸类各自特殊的变化过程和变化趋势。
The results showed that all the water, alcohol, methanol, 50% methanol, n-hexane and acetic ester extracts have antioxidation on lard and peanut oil.
实验表明,山稔子水、无水乙醇、甲醇、50%甲醇、正己烷和乙酸乙酯的提取物对猪油和花生油均具有抗氧化作用,而且其抗氧化作用的强弱与溶剂的极性直接相关。
The Kefir yogurt products had excellent texture, smooth taste, moderate sweetness and acidities, dense alcohol and ester aroma, and short solidify time.
用此发酵剂制作成品酸奶,凝乳时间短,凝固结实,口感细腻,甜酸度适中,有浓郁的酯香风味。
In the reaction process, the free fatty and resin acids react with the alcohol, with the aid of the acid catalyst, to yield the desired ester products.
在反应过程中,借助于酸催化剂,所述游离的脂肪和树脂酸与所述醇反应产生期望的酯产物。
The invention provides a celastrol long-chain alcohol ester and the preparation method and the function thereof.
本发明提供了一种雷公藤红素长链醇酯及其制备方法与用途。
For functional polymer of rosin allyl alcohol ester, the static adsorption of ginkgo biloba flavone was 22.
研究了功能化松香丙烯醇酯聚合物吸附分离银杏黄酮的效果。
At last, the application of alcohol polyether phosphate ester was discussed.
最后,对醇醚磷酸酯的应用开发进行了研究。
The results showed that the relative contents of fusel oil were decreased; the relative contents of total ester, total acid and phenylethyl alcohol increased after PEF treatment.
研究结果表明:经一定条件的高压脉冲电场处理后,葡萄酒中的杂醇油含量有所下降,总酸、总酯和苯乙醇的含量有所上升。
First we synthesized the -phenylethyl chloride from -phenylethyl alcohol. Then it was substituted by enolate anion of diethyl malonate and converted to ester.
在我们的合成方法中,先从-苯乙醇开始合成了-苯乙基氯,再用丙二酸二乙酯的烯醇盐离子进行亲核取代。
The composite amino acids lauryl alcohol ester was synthesized by lauryl alcohol and the composite amino acids from rapeseed meal which was hydrolyzed with hydrochloric acid.
以菜籽粕水解制得的复合氨基酸浓缩液为原料,与月桂醇酯化制得复合氨基酸月桂醇酯。
Total ester and total acid content in three prescriptions above all reach national top quality standard of Sanhua-flavor type low alcohol liquor.
以上三配方酒样中的总酯、总酸含量均达到优质低度米香型白酒的国家标准。
The influence of the molar ratio of n-amyl alcohol and acetic acid, the quantity of the catalyst, the reaction time etc on the ester yield was discussed.
探讨了醇酸物质的量比、催化剂用量、反应时间等因素对酯收率的影响。
The intermediary products are ester with a benzene circle, linear acid, alcohol, ester, e…
中间产物包括多种含一个苯环的酯和直链的酸、醇、酯等。
The result indicated that the highest relative content in essential oil in the three periods is alcohol substance and the second is ester and aldehyde.
不同时期的黄褐毛忍冬挥发油中醇类物质含量均较高,其次是酯类、醛类等物质;
The esterification reaction of a long chain fatty acid and a fatty alcohol catalyzed by sugar ester modified lipases in organic media was studied.
本文研究了不同糖脂化合物修饰的脂肪酶在有机溶剂中催化长碳链脂肪酸和脂肪醇的酯化反应。
Using senecioic acid and definite alcohol such as methanol or other alcohols as raw materials in the presence of phosphorus oxychloride as catalyst, corresponding ester can be synthesized by one step.
以异戊烯酸和甲醇等醇类为原料,在三氯氧磷催化下一步合成相应的酯类。
Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.
先制备具有均一链长的含有酰胺键的硬段单体,然后与二元醇进行缩聚反应生成酯键是制备性能良好的聚酰胺酯的较好途径。
A copolymer of acrylic higher alcohol ester-acrylonitrile (AEA) as cold flow improver for diesel fuel were designed and synthesized, and its effects were evaluated.
设计合成了丙烯酸高碳醇酯-丙烯腈共聚物(AEA)作为柴油低温流动性改进剂,评价了其使用效果,对其结构与性能的关系进行了初步研究。
The relationship between structure and composition of higher carbon alcohol phosphoric ester fat liquor and leather properties was studied.
对高碳醇磷酸酯加脂剂的结构和组成与皮革性能之间的相关性进行了研究。
The relationship between structure and composition of higher carbon alcohol phosphoric ester fat liquor and leather properties was studied.
对高碳醇磷酸酯加脂剂的结构和组成与皮革性能之间的相关性进行了研究。
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