查询词典 phenol-phthalein

Antioxygen 168 schemical name is tri (2, 4-di-butylphenyl)sulfite ester, which is made from 2, 4-di-butyl phenol and phosphorus trifluoride .

抗氧剂168化学名称为三(2，4-二叔丁基苯基)亚磷酸酯，由2，4-二叔丁基苯酚与三氯化磷反应制得。

Triphenyl phosphite provided prominent stabilization only when used in combination with other stabilizers. Good results have been obtained for both polyether-urethane and nitrate esters when using 2,6-di-t-butyl-4-methyl-phenol as stabilizer.

亚磷酸三苯酯单独使用时效果较差，但与其它种类的稳定剂混合使用能得到较好的效果。2，6-二叔丁基-4-甲基酚对硝酸酯和聚氨酯粘结剂均具有良好的稳定作用。

The surface modification and dispersion of nano- SiO_2 particles with polyethylene glycol is studied by FTIR and TEM, and the reaction mechanism of tung oil and phenol compound is discussed.

利用红外光谱和透射电镜研究了聚乙二醇对纳米SiO_2表面性能及分散性的改进效果，并探讨了桐油—苯酚化合物反应的机理。

A univalent organic radical, C2H5.Of, relating to, containing, or derived from phenol .

苯酚的苯酚的，有关苯酚的，含有苯酚的，或从苯酚中提炼的

The obtained results show that the primary and secondary alcohols areconverted in good yields, whereas tertiary alcohol and phenol are unreactive.

当原料分别为乙醇、正丁醇、仲丁醇、苯甲醇和苯乙醇时，目标产物碳酸二乙酯、正丁基乙基碳酸酯、仲丁基乙基碳酸酯、苯甲基乙基碳酸酯和苯乙基乙基碳酸酯的产率分别为67.3、52.3、56.7、37.6和32.8％。

Because you want to use water-based ink, paint, or urethan, phenol-formaldehyde resin on the printing plate for water resistance.

因要使用水性油墨，所以要用漆或氨基甲酸乙酯、酚醛树脂对印版进行耐水强化处理。

But urushiol has a poor resistance to alkali because phenol hydroxyl of urushiol shows weak acidity. Meanwhile, inherent brittleness of urushiol has limited its development and application.

但是，由于漆酚的酚羟基显弱酸性，使得漆酚耐碱性较差；同时，漆酚清漆固有的脆性等也限制了其发展和应用。

The regulation of phenol contents and its HPLC characteristic of Zizyphus jujuba Mill, Vitis vinifera L. and Pistacia vera L. were studied.

该文研究了阿月浑子、枣树和红地球葡萄2年生叶片与组织培养苗叶片、愈伤组织酚类物质含量的变化并对其进行了HPLC分离特性的研究。

By the method of phenol and vitriol.

1和G.F。-2的总糖含量分别为90.8％、84.6％。

The methods of immobilization,the carriers and the size of carrier which were used to immobilize white rot fungus were studied by comparing removal rate of COD and phenol.

研究了不同的固定化方式、吸附载体及载体体积对吸附法固定化白腐真菌去除苯酚和COD的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。