• Methods: the basic fuchsin method used to show the anoxic cardiac muscle was modified by prolonging the hematoxylin staining time and adding a step of hydrochloric acid alcohol differentiation.

    方法改进显示缺氧心肌碱性复红,即延长苏木染色时间增加盐酸酒精分化步骤

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  • White crystal or offwhite powder, undissolving in water or alcohol, dissolving in concentrated sulphuric acid or hydrochloric acid or ammonia or potassium iodide.

    白色结晶灰白色粉末,见光易分解变成棕黄色。不溶于乙醇。溶于硫酸盐酸,亦溶于氨水碘化钾

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  • The composite amino acids lauryl alcohol ester was synthesized by lauryl alcohol and the composite amino acids from rapeseed meal which was hydrolyzed with hydrochloric acid.

    以菜籽粕水解制得的复合氨基酸浓缩液为原料,月桂酯化制得复合氨基酸月桂醇酯。

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  • Combine with the"S N2 "mechanism, after analyses the reaction process of alcohol and hydrochloric acid, we reasonably determined the industrial process for the production of Ethyl chloride.

    前言:结合双分子核取代反应机理,对乙醇盐酸反应过程进行分析合理确定工业生产乙基工艺路线。

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  • Not dissolve in the water and alcohol, but easily dissolved in rare hydrochloric acid.

    溶解度不易溶于乙醇溶于稀盐酸。

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  • Methods: In the presence of hydrochloric acid or nitric acid, geranyl sulfone was prepared from geraniol in isopropyl alcohol or THF under reflux conditions for 18 h or 28 h, respectively.

    方法THF溶剂,盐酸硝酸为催化剂,香叶醇与苯亚磺酸钠回流反应1828h香叶

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  • After ethanol precipitation, OPC was separated by ethyl acetate-ligroin system. Content of OPC was determined by normal butyl alcohol-hydrochloric acid method at 546 nm to be over 90%.

    提取物后,用石油醚沉淀法分离低聚原花青素,产物经正丁醇-盐酸法显色,比色测定质量含量达90%以上。

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  • After ethanol precipitation, OPC was separated by ethyl acetate-ligroin system. Content of OPC was determined by normal butyl alcohol-hydrochloric acid method at 546 nm to be over 90%.

    提取物后,用石油醚沉淀法分离低聚原花青素,产物经正丁醇-盐酸法显色,比色测定质量含量达90%以上。

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