["每日 un problème du jour】Principes de l'industrie5: Mesurer la de dureur22 月1 日

2017-01-11View Original

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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~顺祝大家圣诞节愉快~~ 【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~~~ 判断题：EDTA法测小硬度用的指示剂是0.5%酸性铬蓝K，终点显蓝紫色。对

Reply #22017-01-11

EDTA法测小硬度用的指示剂是0.5%酸性铬蓝K,终点显蓝紫色。(√).

Reply #32017-01-11

EDTA法测小硬度用的指示剂是0.5%酸性铬蓝K，终点显蓝紫色。（V）

Reply #42017-01-11

EDTA法测小硬度用的指示剂是0.5%酸性铬蓝K，终点显蓝紫色。√

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["每日 un problème du jour】Principes de l'industrie5: Mesurer la de dureur22 月1 日

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