dimethyl

The thermodynamic analysis of the synthesis processes was carried out with the emphasis on the calculations of free energy for DMC synthesis from dimethyl ether ( DME) with CO and O_2 or DME with CO_2 at different temperature and pressure.

计算了不同温度和压力条件下二甲醚（DME）氧化羰化合成DMC及DME与CO2反应合成DMC的焓ΔrHm、吉布斯自由能变ΔrGm和平衡常数lnKθ。

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Expression of DNA polymerase β induced by all-trans retinoic acid and dimethyl sulfoxide and change of the base excision repair in human esophageal cancer cells

诱导分化的人食管癌细胞DNA聚合酶β和碱基切除修复功能的改变

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The Aerobic Biodegradation of UDMH Wastewater and Its Kinetics Research; Development of Nonaqueous Electrolyte Electrochemical Gas Detector for Unsymmetrical Dimethyl Hydrazine

偏二甲肼污水的好氧生物降解及其动力学研究偏二甲肼非水电解液电化学气体检测仪的研制

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Application of dimethyl carbonate, the green materials in the chemical process

化工生产中绿色原料碳酸二甲酯的应用绿色工艺的原料碳酸二甲酯

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Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization.

烯酮, 特别是二甲基烯酮, 很容易齐聚和聚合.

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Development of Nonaqueous Electrolyte Electrochemical Gas Detector for Unsymmetrical Dimethyl Hydrazine

偏二甲肼非水电解液电化学气体检测仪的研制

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On the basis of the process for the preparation of the Cu-Zn-Al methanol catalyst, a catalyst is developed for the manufacture of dimethyl ether from syngas in one-step.

在Cu-Zn-Al甲醇催化剂制备工艺的基础上，研制出了合成气一步法制二甲醚催化剂。

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N , N-dimethyl-2-mercapto-nicotinic amide is an important synthetic intermediate for drug and pesticide.

二甲基 -2- 巯基烟酰胺是重要的医药和农药中间体.

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Dimethyl sulfone is an important material of healthy foods and relative pharmaceutical.

二甲基砜是保健食品和相关医药的重要原料.

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[ Method] Protoheme was separated from protein hydrolysate of coagulated animal blood and protoporphyrin, protoporphyrin dimethyl ester and other intermediate products were extracted, which were finally made into protoporphyrin disodium.

方法将凝固动物血中的蛋白质水解，分离出血红素，经原卟啉、原卟啉甲酯等中间产物，最终精制获得原卟啉钠。

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Synthesis of Polysubstituted Aromatic Compounds 4. The Diels Alder Reaction of Substituted 3 Sulfolenes with Dimethyl Acetylenedicarboxylate

多取代芳香族化合物的合成4.取代的环丁-3-烯砜与丁炔二酸二甲酯的Diels-Alder反应

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Methods of preparation dimethyl carbonate are reviewed and the progress is forecasted.

综述了碳酸二甲酯的合成方法,并预测了其市场前景.

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Dimethyl ether has better fuel and mechanical properties and explosive force.

二甲醚的燃油性能和机械能更好,爆发力大.

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Ethylene Glycol Dimethyl Ether ( see 1 , 2-Dimethoxy-ethane )

亚乙基二醇 ( 见乙二醇 )

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The purity of dimethyl disulfide was determined by capillary gas chromatography.

应用毛细管气相色谱法测定二甲基二硫的纯度.

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Viscoelastic micelle solution was formed by propyl ( double octadecyl dimethyl ammonium chloride) ( 18-3-18) dissolved in water at 45 ℃, relative viscosities of micelle solutions were increased with the increases of concentration of 18-3-18.Stable micelle systems may be formed by mixing 18-3-18, CTAC and NaSal.

丙撑基（双十八烷基二甲基氯化铵）（18-3-18）在45℃下溶解形成黏弹性胶束，相对黏度随浓度增加而增大。18-3-18、CTAC和NaSal可复配形成稳定的胶束体系。

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Methods RLS spectra was used to determine trace nitrite by the diazotization-coupling reaction between sulfanilic amide-N, N-dimethyl aniline-nitrite.

方法利用磺胺-N，N-二甲基苯胺-亚硝酸根间发生的重氮化-偶联反应，通过共振散射光谱法测定痕量亚硝酸根。

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Using furfural as the raw material with KClO_3 as the oxidant the V_2O_5 as the catalyst to prepare fumaric acid. Synthesis of dimethyl fumarate by esterification reaction of fumaric acid with methanol catalyzed by heterogeneous supported heteropoly acid PW_ ( 12)/ C.

研究了以糠醛为原料，以KClO3为氧化剂，V2O5为催化剂制备富马酸，在固载杂多酸PW12/C催化下，富马酸和甲醇经过酯化反应合成富马酸二甲酯。

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Acetone ( or dimethyl ketone ): Simplest and most important ketone ( CH 3 COCH 3 ) .

丙酮: 亦称二甲基酮:分子式为 CH3COCH3,最简单和最重要的酮.

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METHODS 3-hydroxy estrogen reacted with dimethyl sulfate in acetone in the presence of potassium carbonate.

方法以含 3- 酚羟基的雌激素类化合物为原料,丙酮为溶剂,在碳酸钾存在下与硫酸二甲醋反应.

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The Zn-Al hydrotalcite prepared by co-precipitation method was used to catalyze the transesterification of phenol and dimethyl carbonate ( DMC).

用共沉淀法制备了Zn-Al水滑石，并用于多相催化酯交换合成碳酸二苯酯的反应。

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Studies on the Synthesis of Sesamin-group Lignans IV.A Study of the Reaction between Dimethyl 2-Phenyl-furane-3,4-dicarboxylate and Grignard Reagents

芝麻素类型木脂素的合成研究Ⅳ2－苯基呋喃3，4－二羧酸二甲脂与格氏试剂反应的研究

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Dimethyl ether is a kind of clean fuel with good characteristics, prospect future for development.

二甲醚是一种性能好 、 有发展前途的清洁燃料.

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The method for the determination of 2-nitro-dimethyl-terephthalic by GC in this paper.

摘要研究了 2- 硝基对苯二甲酸二甲酯的气相色谱测定方法.

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DHDMEU ( 4, 5-dihydroxy-1 , 3-dimethyl ethylene urea )

4, 5- 二羟基 -1, 3- 二甲基乙烯脲 ( 无甲醛交联整理剂 )

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Methods of qualitative and quantitative analysis for benzene, toluene, ethyl benzene, dimethyl benzene in blood and urine.

血、尿中的苯 、 甲苯 、 乙苯 、 二甲苯的定性及定量分析方法.

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Treatment of Wastewater Containing Unsymmetrical Dimethylhydrazine with Oxidation Method of Chlorine Dioxide Development of Nonaqueous Electrolyte Electrochemical Gas Detector for Unsymmetrical Dimethyl Hydrazine

二氧化氯氧化法处理偏二甲肼污水工艺偏二甲肼非水电解液电化学气体检测仪的研制

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The study of solubility, density, viscosity and appropriate model enriches the basic research of chemical engineering and molecular thermodynamic, and provides basic data for industrial production and farther research to dimethyl fumarate.

本文研究的溶解度、密度、粘度数据及相应的模型，丰富了化工基础数据和分子热力学研究，为富马酸二甲酯的进一步研究和工业化提供了基础数据和信息。

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Marine living beings , plants, animals and human body all contain dimethyl sulfone.

海洋生物 、 植物 、 动物和人体均含有二甲基砜.

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Vapor-liquid equilibria and separation of methanol-dimethyl carbonate azeotrope are ( reviewed ) in this paper.

综述了碳酸二甲酯 - 甲醇二元共沸物汽液平衡和 分离方法 的最新研究进展.

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