• 液相氧化制取醌的方法

    A method for preparing anthraquinone from crude anthracene liquid oxide.

    youdao

  • 采用乳化结晶法,研究精制过程溶剂温度助剂分离时间作用。

    The effects of solvent, temperature, additive and separation time on the refinement process of crude anthracene by using emulsion-crystallization were reported.

    youdao

  • 自制多糖呈灰白色粉末状葡萄糖标准曲线,酮-硫酸测定其含量15%。

    The crude TPS, extracted from green tea in this laboratory, was a kind of powdery and gray material, and contained polysaccharides about 15% by anthrone-vitriol method employed glucose as standard.

    youdao

  • 主要产品沥青甲苯二甲苯

    Main products are anthracene, naphthalene, bitumen, crude carbolic acid, benzene, toluene and xylene etc.

    youdao

  • 方法沉法分离出多糖,采用酮一硫酸法制得有色糖醛衍生物,分光光度法进行含量测定

    Methods The polysaccharide were extracted with hot water and precipitated with alcohol, The contents of polysaccharide were determined by sulfuric acid-anthrone method by UV spectrophotometry.

    youdao

  • 主营煤炭冶金焦煤焦油沥青焦化燃料油混合、工业萘、硫酸铵、轻苯、苯、油、国标产品

    Main business: coal, Metallurgical coke, Bituminous coal, coal tar pitch, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.

    youdao

  • 主营煤炭冶金焦、煤焦油、沥青焦化燃料油混合、工业萘、硫酸铵、轻苯、苯、油、国标产品

    Main business: coal, Metallurgical coke, Bituminous coal, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.

    youdao

  • 主营煤炭冶金焦、煤焦油、沥青焦化燃料油混合、工业萘、硫酸铵、轻苯、苯、油、国标产品

    Main business: coal, Metallurgical coke, Bituminous coal, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.

    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