• 聚乙二醇二丁醚;

    Polyethylene glycol dibutyl ether;

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  • 还涉及其制备方法,它包括:1)乙二醇独丁醚为介质;

    Its preparing method comprises:1)ethylene glycol monobutyl ether as medium;

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  • 甲基叔丁醚(MTBE)是在临床试验中的一种胆石溶解剂。

    MTBE is a gallstone dissolving agent in clinical trial.

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  • 用微型蒸馏头替代常量分水器来制备正丁醚,既能满足分析要求,又能节省实验经费。

    It reports that n-butyl ether can be prepared in microscale experiment with a microscale distillation head.

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  • 另一些鱼在接触杀螟松之前分别用胡椒基丁醚(pbo)和磷酚三苯酯(TPP)做预处理。

    Fish were also pretreated with piperonyl butoxide (PBO) or triphenyl phosphate (TPP) and then exposed to fenitrothion.

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  • 介绍了乙二醇单异丁醚的反应机理及原料的摩尔比、反应温度和反应时间等因素对合成反应的影响。

    This paper dealt with reaction mechanisms and synthesis and the effects of raw materials mole ratio, reaction temperature and reaction time.

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  • 一种含磷酸酯叔氟水分散体树脂,按树脂的单体总重量计,其包括:1) 30.0%的乙二醇独丁醚;

    A phosphate ester tert-fluorine water dispersion resin(resin monomer total weight% )comprises:1)30.0% ethylene glycol monobutyl ether;

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  • 清洁的胡椒基丁醚生产工艺的研究i, 5 -丙基- 1,3 -苯并二氧杂茂的氯甲基化废水的处理。

    Studies on Environmentally Sound Technology for Producing Piperonyl Butoxide I. Treatment of Waste Water from Chloromethylation of 5-propyl-1, 3-benzodioxole.

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  • 结论当淡色库蚊产生抗药性后,采用杀虫剂与氧化胡椒基丁醚混用的方法,可以减少杀虫剂的使用剂量,取得较好防治效果。

    Conclusion the lower dosage of commonly used insecticides mixed with Piperonyl Butoxide may have better control efficacy after the resistance of mosquitoes to insecticides was produced.

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  • 着重讨论了DBP(邻苯二甲酸二丁酯)生产过程中,丁醇分子间脱水生成丁醚的副反应机理及危害,并找出了预防副反应发生的措施。

    Discusses the mechanism and harmfulness of undesired formation of butyl ether by inter-molecular dehydration of n-butanol during DBP production. Preventive measures are also provided.

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  • 利用改进型的乌别洛特毛细管黏度计,对268.123~373.131K温度区间内的甲基叔丁醚的饱和液相黏度进行了实验研究。

    The viscosity of saturated liquid methyl tert-butyl ether(MTBE) was presented over the temperature range from 268.123 to 373.131 K with a calibrated Ubbelohde-type capillary viscometer.

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  • 利用本文实验数据拟合了甲基叔丁醚饱和液相粘度方程,方程和实验数据的平均和最大相对偏差分别为0.49%和1.21%,可以满足工程实际应用.。

    The experimental data of this work were correlated as a polynomial function of the temperature. The average and maximum relative deviation were 0.49% and 1.21%, respectively.

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  • 为研究硫醇烯光固化组成物的反应机理,选用安息香双甲醚、安息香乙醚、安息香正丁醚、二苯甲酮和噻吨酮为光敏剂,用红外光谱法研究了硫醇烯的光化学反应动力学。

    The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.

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  • 盆栽试验研究了2,4 - D丁酯、油菜素内酯对大豆的安全性和对氟磺胺草醚除草活性的影响。

    By pot trial we studied the influence of 2, 4-d butyl and brassinolide to the safety of soybean and to efficacy of fomesafen.

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  • 采用一步法合成以4 ,4 '-甲烷二环已基二异氰酸酯(HMDI)、扩链剂1,4 -丁二醇(BDO)为硬段,聚四氢呋喃醚(PTMG)为软段的脂肪族聚氨酯。

    The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).

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  • 产品成分:去离子水、甘油、丁二醇、芦荟提取液、透明质酸、尿囊素、苯氧乙醇、维生素c乙基醚、PEG - 40氢化蓖麻油、EDTA -二钠、香料。

    Ingredients: Deionized Water, Glycerin, Butanediol, Aloe Extract, ha, Allantoin, Phenoxyethanol, Ethyl Ascorbic Acid, PEG-40 Hydrogenated Castor Oil, EDTA-Disodium Salt, Essence.

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  • 结果表明,丁硫醚的去除率随辐射剂量的增加而上升,去除反应符合一级动力学;

    The results show that the degradation efficiency of DBS increases with the accretion of radiation dose of gamma rays and the degradation reaction of DBS seems following first-order kinetic.

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  • 系统研究了以TBP为萃取剂,乙酸丁酯、二甲苯、石油醚、煤油为稀释剂,从高酸度盐酸溶液中萃取镓。

    Extraction of Gallium from high concentration HCl solution using organic phases which composes of TBP and butyl acetic ester, xylene, petroleum ether and kerosene, respectively, are investigated.

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  • 以乙酰乙酸叔丁酯为原料,经过肟化、醚化、氯代酯解反应合成了头孢克肟开环侧链酸。

    Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.

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  • 结果表明:2,4—D丁酯与氟磺胺草醚、精稳杀得混用具有提高除草效果的作用;

    The results showed that: there was synergism to combination between 2,4-D butyl and fomesafen, fluazifop-p-butyl;

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  • 结果表明:2,4—D丁酯与氟磺胺草醚、精稳杀得混用具有提高除草效果的作用;

    The results showed that: there was synergism to combination between 2,4-D butyl and fomesafen, fluazifop-p-butyl;

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