Esters

A Pilot Test of Synthesis of Complex Esters used in PVC External Lubricant

聚氯乙烯外润滑剂高分子复合酯的中试研究

Fatty acid esters of starch were new and non-ionic surfactants, which catalyst.

脂肪酸淀粉酯是一种新型的非离子型表面活性剂, 具有广泛的应用价值.

Synthesis of thio ethers and thiocyanic acid esters using triphase catalysis

芳香族对称硫醚和硫氰酸酯的三相催化合成

Production of rosin esters was improved by adding composite additives.

采用添加复合添加剂的方法改进松香酯的工业生产.

Recently the reactivity of nitric esters in the presence of hydrazine has been investigated.

人们近来研究了有肼存在时硝酸酯的反应性.

The aroma of persimmon fruit is weak, main components are alkanes and esters, such as tetradecane, 2-methyl-decane, hexadecane and ethyl decanoate.

柿子果实的香气较弱，主要以烷烃类和酯类为主，如十四烷、2-甲基癸烷、十六烷等烷烃类物质和癸酸乙酯。

Curculigo orchioides and different doses of benzoic acid esters of phenolic glycosides could improve bone density in ovariectomized rats, and in the higher and highest dose groups, it was significantly different from the OVX rats ( P 0.01).

仙茅提取物及不同剂量的苯甲酸酯类酚苷成分均能提高去卵巢大鼠的骨密度，且中、高剂量组大鼠骨密度与去卵巢模型组大鼠比较具有显著性差异（P0.01）。

The most stable state esters of could well be polyester.

状态最稳定的酯类很可能要数聚酯.

Long-chain fatty acid esters of starch have some special properties, such as thermal plasticity, hydrophobicity, emulsifiability and biodegradability.

长链脂肪酸淀粉酯是一类具有特殊的热塑性、疏水性、乳化性和可生物降解性的变性淀粉，在食品、纺织、化妆品、医药等行业有着广泛的应用。

At sufficiently high temperatures and alkalinity, fatty esters may be hydrolyzed to produce soaps.

在足够的温度和碱度的情况下, 脂护酯可能被水解产生皂类.

As raw materials for the production of cosmetics, polyglycerol esters may use as emulsion, excipient, wetting agent, softener. and dispersion, and have the action of stabilization condition and viscosity control.

聚甘油酯作为化妆品生产原料可用作乳化剂、赋形剂、保湿剂、柔软剂和分散剂，并具有稳定、调理和控制粘度的作用。

Tocopherol esters are of a great variety and have various pharmaceutical functions.

生育酚酯种类很多,药理功能不尽相同.

A series of α,β unsaturated ketones and esters have been synthesized by Knoevenagel reaction of aldehyde with carbonyl compounds which have active methylene group in the presence of tellurium(ⅳ) chloride in excellent yields.

用TeCl4催化含有活泼亚甲基的羰基化合物与醛的Knoevenagel反应，合成了一系列α，β－不饱和酮或酯，收率最高达95%。

Any of several esters, other than the ethyl ester, of carbamic acid.

'聚'.''氨脂一种氨基甲酸中除''.'乙基'.''酯以外的酯.

Recent studies on catalysis by heteropoly acid ( HPA) for the synthesis of aromatic ketone by Friedel-Crafts acylation reaction and Fries rearrangement of aryl esters are reviewed.

综述了杂多酸及其盐在合成芳酮的Friedel-Crafts（F-C）酰化反应和Fries重排中的应用，并与其它类型的催化剂作了比较。

Research on correlation of transfer ratio of some aldehydes and esters flavors and cigarettes tar content

一些醛、酯类香料在卷烟中的转移率与卷烟焦油量的相关性研究

Only a very limited amount of data is available on thiol esters.

有关硫醇酯类的数据非常有限.

Stereochemistry of tautomerism ⅰ. studies on tautomeric equilibrium of alkyl malonic esters

互变异构的立体化学Ⅰ.烃基丙二酸酯的互变异构平衡的研究

A Study on infrared Spectra of Organotin Esters of Terebic Acid

芸香酸有机锡酯的红外光谱研究

Nonionic surface-active agents polyoxyethylene condensates, sucrose esters and alkyl amine oxides.

有聚氧乙烯缩合物, 糖酯和烷基胺氧化物.

Nitrous esters can react with alkyl peroxides to yield alkyl nitrates.

亚硝酸酯与过氧化烷基反应,得到烷基硝酸酯.

Acid, Fatty Acids , Fatty Alcohols, Amines, Fatty Amines, Fatty Esters. Acid.

采购产品酸, 脂肪酸, 脂肪的酒精, 胺, 脂肪的胺, 脂肪的酯. 酸.

The acrylic esters sticking label adhesive at a high speed was produced.

以丙烯酸酯为原料制备了高速贴标胶粘剂.

Study of the Rapeseed Oil, Tall Oil Pitch Esters Binder for Foundry Use

铸造用菜油，浮油沥青酯粘结剂的研究

Results show that the essential oils of rhodiola crenulata mainly fatty acid, terpene, alcohol and a small amount of esters, ketones, aldehydes, paraffin, phenols and other ingredients.

结果表明，大花红景天的挥发油主要是脂肪酸类、萜类、醇类及少量酯、酮、醛、烷烃、酚类等成分。

Nonionic surface-active agents include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.

非离子型表面活性剂有聚氧乙烯缩合物, 糖酯和烷基胺氧化物.

Synthesis and Application of Disproportionative Tall Oil Esters

歧化妥尔油酯的合成及应用

The catalytic system and reaction mechanism of methyl formate reacting with alkene for synthesis of esters

甲酸甲酯与烯烃反应合成酯的催化体系及反应机理

Esters are named as derivatives of the acids from which they are derived.

酯是作为相应的酸的衍生物来命名的.

Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.

非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.