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["[Problème du jour] Principes de l'ingénierrie chimique 56s : Titration par EDTa (2 mai 23)",,"Ce sujet a derniement été moddit par 再回康桥 于

2017-05-23View Original

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本帖最后由 再回康桥 于 2017-5-23 07:57 编辑 化工理论版块即日起推出【每日一题】活动,帮助大家巩固化工基础知识,相继会推出“化工原理系列”、“传质分离系列”、“化工热力学系列”、“化工工艺系列”等,希望大家积极支持~~~ 【每日一题】活动回复可直接查看**,1天后关闭主题!!为鼓励大家今年持续的参与!参与即有3财富奖励,回答正确额外追加4财富~~~ 简答题:用EDTA滴定法测定凝结水硬度时,常出现终点色为灰绿色的情况,说明什么干扰较大,需要加掩蔽剂?铁离子干扰较大
Reply #22017-05-23
用EDTA滴定法测定凝结水硬度时,常出现终点色为灰绿色的情况,说明什么干扰较大,需要加掩蔽剂? 铁离子
Reply #32017-05-23
说明铁离子干扰较大。要加掩蔽剂。
Reply #42017-05-23
用EDTA滴定法测定凝结水硬度时,常出现终点色为灰绿色的情况,说明什么干扰较大,需要加掩蔽剂? 铁
Reply #52017-05-23
(铜、 铁离子 )干扰较大,需要加掩蔽剂。

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