phenolphthalein是什么意思,phenolphthalein怎么读,
1.In order to increase reliability using phenolphthalein solution to detect alkaline cell sealing characteristics, the water in the alcohol was decreased, environment humidity were requisite.
为了提高酚酞溶液检测碱性电池密封性能的可靠性,就必须减少配制酚酞试剂酒精中的含水量,同时也必须降低测试环境湿度。
2.A kinetic method for the direct determination of CO_2 in gaseous phase is proposed, based on fading the phenolphthalein when CO_2 dissolves in dilute aqueous solution of NaOH.
本文基于气相中的二氧化碳在稀氢氧化钠-酚酞溶液中的溶解而使酚酞逐渐褪色的动力学行为提出了一种直接测定气相中微量二氧化碳的动力学分析法。
4.The causes of producing error results were analyzed at detecting alkaline cell seal characteristics, using phenolphthalein solution.
分析了用酚酞试剂检测碱性电池密封性能产生错误结果的原因。
5.The colored solidified alcohol has been prepared by utilizing alcohol, stearic acid, sodium hydroxide, phenolphthalein, copper nitrate and cobalt nitrate.
运用酒精、硬脂酸、氢氧化钠、酚酞、硝酸铜、硝酸钴等原料,制备彩色固体酒精。
7.Phenolphthalein: This chemical is an organic dye that is toxic in large quantities.
酚酞:这个化学药品是一个有机染料,大剂量是有毒的。