• 研究水分含量氨基化制备2-苯基甲酸收率影响

    The effect of content of water on the yield of 2-phenylbenzmide by using sodium amide was studied.

    youdao

  • 芳香族盐酸盐85%甲酸冰醋酸回流可制备相应的芳香族二腈。方法简便,率高。

    Aromatic dinitriles were prepared with excellent yields by refluxing the corresponding aromatic dialdehydes with hydroxylamine hydrochloride in 85% formic acid or glacial acetic acid.

    youdao

  • 本文介绍了以苯二甲酸二丁脂为物,对5%避驱虫花露水进行有效成份测定气相色谱分析法

    A quantitative analytical method of 5% diethylmethylbenzamide in drive-worms floral- water by GC was introduced, Dibutyl Phthalate was selected as internal standard.

    youdao

  • 采用甲酸改性醇酸树脂混合醚化三聚氰甲醛树脂为基料,配以适量的纹助剂制成高固体分低温型氨基

    The high-solid fast drying amino hammer paint is prepared with benzoic acid modified alkyd resin and etherified melamine-formaldehyde resin as binder, hammering agent and other components.

    youdao

  • 研究水分含量氨基化裂解芴酮制备2-苯基苯甲酸收率影响

    The effect of content of water on the yield of 2-phenylbenzmide by using sodium amide to cleave fluorenone was studied.

    youdao

  • 硼酸取代甲酸乙醇葡萄糖酸钠三者为混合防锈剂应用于切削中,其中硼酸酯和取代苯甲酸乙醇盐有明显协同效应。

    Boric acid ester, tri ethanolamine salt of substituted benzoic acid and sodium gluconate were used as anti rust additives in water based cutting fluid.

    youdao

  • UHMWPE非氧化性硫酸硝酸浓度较大盐酸、磷酸、氢氟酸甲酸、乙酸)、氨和及各种碱、溶液都好的性、两种材料都不强氧化性酸的腐蚀。

    UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acid and large concentration hydrochloric acid, phosphorus acid, hydrofluoric acid, and salty solutions.

    youdao

  • 发明公开了一种防锈纸处理剂,甲酸三乙醇尿素乙醇混合组成。

    The invention discloses an anti-tarnish paper finishing agent which is composed by mixing sodium benzoate, triethanolamine, urea, ethanol and water.

    youdao

  • 优选地氨基甲酸聚物异氰酸酯预聚物,且该固化剂包括醇。

    Preferably, the urethane prepolymer is an aliphatic isocyanate polyether prepolymer and the curative includes an aromatic diamine and a triol.

    youdao

  • 考察了异丁烯、氟化镧、三聚氰氰尿酸复合物(MCA)、硫代氨基甲酸盐对-钙性能影响

    The effects of polyisobutene , LaF3, MCA, dialkyldithioaminoformaite on properties of lithium-calcium base grease have been discussed in this paper.

    youdao

  • 实际配方硼酸取代苯甲酸乙醇、葡萄糖酸钠含量分别为1 0 %、 6 %和1 %。

    The content of boric acid ester, tri ethanolamine salt of substituted benzoic acid, sodium gluconate in cutting fluid was 10%, 6%, 1%, respectively.

    youdao

  • 实际配方硼酸取代苯甲酸乙醇、葡萄糖酸钠含量分别为1 0 %、 6 %和1 %。

    The content of boric acid ester, tri ethanolamine salt of substituted benzoic acid, sodium gluconate in cutting fluid was 10%, 6%, 1%, respectively.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定