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- dimethyl dioxane 二甲基二氧乙环,二甲基二恶烷
- OBJECTIVE: To study the synthetic method of 2,2 dimethyl 5 hydromethyl 1,3 dioxane. 目的:探讨2,2二甲基5羟甲基1,3二氧六环的合成方法。
- The Dimethyl Sulfate has an annual output of 15,000 tons. 同时我司也是国内最大的磺胺类产品出口基地。
- Dimethyl ether (DME) is produced normally from syngas or methanol. 介绍了二甲醚的应用及其下游产品的开发利用情况。
- Dimethyl 5-sulfoisophthalate sodium salt hydrate, 98... 二甲基5-磺酸异邻苯二酸钠盐;
- Triethylene glycol dimethyl ether, stabilized, 99%... 三乙二醇二甲醚/三甘醇二甲醚;
- Acetone (or dimethyl ketone): Simplest and most important ketone (CH3COCH3). 丙酮:亦称二甲基酮:分子式为CH3COCH3,最简单和最重要的酮。
- Acetone (or dimethyl ketone): Simplest and most important ketone (CH3COCH3). 丙酮:亦称二甲基酮:分子式为CH3COCH3,最简单和最重要的酮。
- Study on the kinetics of dimethyl ether one step synthesis from syngas. 合成气一步法制二甲醚的动力学研究
- Recent methods of dimethyl fumarate synthesis are reviewed in this article. 本文对近年来富马酸二甲酯的合成方法进行了评述。
- Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone. 通过过一硫酸和丙酮反应,合成了新型高效的氧化剂二甲二氧环烷。
- Objective:A method was developed for the determination of the dioxane in Ftibamzone by headspace gas chromatography. 目的:建立了顶空气相色谱法测定酞丁安中二氧六环的含量。
- The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed. 利用二甘醇为原料,以对甲苯磺酸为催化剂合成了1,4-二氧六环。
- Determination with gas chromatography/flame ionization detector(GC/FID) for dioxane in cosmetics was developed. 建立了用毛细管气相色谱配氢火焰离子化检测器测定洗涤和化妆品中二恶烷的方法。
- Dioxane has been frequently detected in river water, especially in ground water polluted by volatile halogenated hydrocarbons. 二恶烷经常会在河水、特别是地下水中被检测到,这主要是由于挥发性的卤代碳氢化合物造成的污染。
- The copolymers prepared by solution polymerization in THF or dioxane were better supporter for the synthesis of highly active supported catalyst. 在溶剂THF或二氧六环的存在下制得的苯乙烯-丙烯酸共聚物最适宜于合成高活性的载体钕络合物。
- Green environmental protection, harmful solvents are free such as dimethyl benzene, methanal ect. 绿色环保,不含二甲苯、甲醛等有害溶剂。
- In experiment dioxane was choosed as the best solvent for extraction of pigment and capsaicin from Capsicum frutescens L. 以贵阳的干红辣椒为原料,选用二氧六环为最佳提取溶剂。
- Also, in dioxane solution, 18Crown6 was prepared in 64.4% yields by reaction of polyethylene glycol 270 and ptoluenesulfonyl chloride. 以二氧杂环己烷为溶剂;通过聚乙二醇270与对甲基苯磺酰氯反应合成了18冠6;产率64.;4%25。
- 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.