硫酸二甲酯

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  • dimethyl sulfate
硫酸二甲酯硫酸二甲酯
  1. 例如,某些海藻向大气释放硫酸二甲酯(DMS)等化学物质,而硫酸二甲酯与云的形成有关系。

    For example , some species of ocean algae release a chemical into the atmosphere known as dimethyl sulfate ( DMS ) .

  2. DMC可作为羰基化试剂代替剧毒物质光气用于合成聚碳酸酯、异氰酸酯、杀虫剂西维因等,用作甲基化试剂代替致癌物硫酸二甲酯合成苯甲醚。

    DMC can be used as carbonylation agent replacing phosgene in synthesis of polycarbonate , isocyanate and insecticide carbaryl as well as methylating agent replacing carcinogen dimethyl sulfate in synthesis of methylphenate .

  3. 确定以硫酸二甲酯为N甲基化剂,对对氨基苯甲酸PABA进行N二甲基化。

    It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent .

  4. 对尿素与硫酸二甲酯的缩合反应、缩合液与NaOH的置换反应以及游离的O-甲基异脲与醋酸、正-十二胺的合成反应做了系统的研究。

    We carried out a systematic study on the condensation reaction of urea and dimethyl sulfate , the displacement reaction of condensation liquid and NaOH and the synthetic reaction of the free O-methyl isobutyl , urea acetic acid and dodecylamine .

  5. 以三硬脂酸甘油酯、二乙烯三胺(DETA)为原料合成了中间体,经硫酸二甲酯阳离子化制备出双酰胺季铵盐阳离子表面活性剂,再与AEO-9、TX-10复配制得复合脱墨剂。

    This paper deals with a cationic bisamide compound system deinking agent whose intermediate was prepared by using tristearin , isopropylidene glycerol , diethylenetriamine ( DETA ) and catalyzed by p-Toluene sulfonic acid and reacted at 140 ℃ for 2 h.

  6. 急性硫酸二甲酯中毒致双眼角膜剥脱的护理体会

    Nursing of Double Corneas Endarterectomy Induced by Acute Dimethyl Sulfate Poisoning

  7. 方法对124例硫酸二甲酯致眼损伤的病例进行分析。

    Methods Retrospective analysis 124 cases of eye injured by dimethyl sulfate .

  8. 硫酸二甲酯眼损伤的临床表现及治疗

    Clinical appearance and treatment of eye trauma by dimethyl sulphate

  9. 急性硫酸二甲酯中毒1例护理体会

    Nursing experience about one case of acute dimethyl sulfate poisoning

  10. 结果硫酸二甲酯致眼损伤主要临床表现为化学性结膜炎、角膜炎。

    Results Main clinical manifestations are chemical conjunctivitis and keratitis .

  11. 目的提出对硫酸二甲酯中毒案件损伤程度的评定方法。

    Objective To develop criteria to assess injuries due to diethyl sulfate poisoning .

  12. 硫酸二甲酯对眼组织的急性损害

    Acute Injury of the Eyes Caused by Dimethyl Sulfate

  13. 其制备方法是由三氧化硫与甲醚反应生成硫酸二甲酯。

    The title product is prepared by reacting sulfur trioxide with methyl ether .

  14. 一起硫酸二甲酯急性中毒事故调查

    Survey on an accident of acute dimethyl sulfate poisoning

  15. 1起急性硫酸二甲酯中毒事故的调查

    Investigation on a case of acute dimethyl sulfate poisoning

  16. 硫酸二甲酯中毒案件损伤程度评定44例分析

    Assessment of Injuries Caused by Diethyl Sulfate Poisoning

  17. 硫酸二甲酯的遗传毒效应研究

    Study on genetic toxicity effect of dimethyl sulfate

  18. 124例病人中有10例合并硫酸二甲酯中毒,61例合并呼吸道损伤,8例合并皮肤灼伤。

    10 cases were complicated with poisoning , 61 respiratory injury and 8 skin burned .

  19. 硫酸二甲酯的制备

    Preparation of Sulfuric Acid Dimethyl Ester

  20. 重度硫酸二甲酯中毒的抢救护理

    Nursing of serious dimethyl sulfate poisoning

  21. 其中硫酸二甲酯年产一万五千吨,是江苏省定点生产企业之一。

    A designated enterprise without production task for two years may be nullified of its designation .

  22. 吗啡[盐酸盐,硫酸盐]顶空气相色谱法测定季铵盐型表面活性剂中硫酸二甲酯

    Morphine [ Hydrochloride , Sulfate ] Determination of dimethyl sulfate in quaternary ammonium salt surfactant by headspace gas chromatography

  23. 在无溶剂条件下,以硫酸二甲酯作为甲基化试剂,采用微波辐射技术进行酚羟基的甲基化反应,合成了4个含甲氧基化合物药物中间体。

    In the absence of solvents , methylation of phenols with dimethyl sulfate was studied by drugs were synthesized .

  24. 精馏塔改用规整填料,提高了硫酸二甲酯产品质量。

    By the way of using regular packings in the rectify tower , the quality of dimethyl sulfate is improved .

  25. 方法基于氯、溴、碘在中性或酸性介质中与硫酸二甲酯反应,生成氯甲烷、溴甲烷、碘甲烷;

    This method is based on the reaction of halides with dimethyl sulphate in neutral or acidic solution resulting methylchloride , methylbromide and methyliodide .

  26. 它可以代替剧毒的光气和硫酸二甲酯作为环境友好的有机合成中间体和起始物质,应用与羰基化和甲基化反应中。

    It can be use as an environment-friendly intermediate and starting material for organic synthesis substituting the poisonous phosgene and dimethyl sulfate in carbonylation and methylation reaction .

  27. 本研究以浸酸牛皮为作用物,采用亚硝酸钠、次溴酸钠、甲醇及硫酸二甲酯分别对胶原侧链进行了修饰。

    Using the pickled ox-hide collagen , the side-chain groups of collagen are modified with sodium nitrite , sodium hypobromite , methanol and dimethyl sulphate , respectively .

  28. 讨论了碳酸二甲酯的合成工艺,主要介绍氧化羰基合成工艺,并对碳酸二甲酯取代硫酸二甲酯和光气市场的可能性进行了分析。

    Synthesis process of dimethyl carbonate is reviewed . Oxidative carbonylation of methanol to DMC and the possibilities of replacement of DMS and COCl_2 by DMC are discussed .

  29. 硫酸二甲酯是一种重要的化工原料,在有机合成中用于代替卤代烷作为甲基化剂。

    Sulfuric acid dimethyl ester , one of the important chemical raw materials acts as the methylating agent in the organic synthesis for the purpose of replacing alkyl halide .

  30. 以牛油、二乙烯三胺和硫酸二甲酯为主要原料合成了一种新型阳离子双酰胺类纸张柔软剂。

    This paper deals with the preparation and application of the cationic diamide softening agent , which is synthesized by using cattle oil , Diethylenetriamine ( DETA ) and dimethyl sulfate .