摘要：
研究了离子交换水硬度的简便、快速的目视比色法。在pH=10时，用铬黑T、甲基红为显色剂，测定软化水硬度在0～2.0×10-5mol/L范围时，结果与EDTA络合滴定法一致。
关键词:
离子交换水,
硬度,
铬黑T,
甲基红,
目视比色法
Abstract:
Study of the ion exchange water hardness is simple, rapid visual colorimetric method.In the pH = 10, with chrome black T, methyl red as the chromogenic agent, determination of demineralized water hardness in 0 ～ 2.0 10 5mol/L range, the results are consistent with EDTA complexometric titration.
Key words:
Ion exchange water,
hardness,
Chromium black T,
Methyl red,
Visual colorimetry
刘淑萍, 苏秀运, 张晓丽. 一种快速测定离子交换水硬度的方法──铬黑T、甲基红目视比色法[J]. 工业水处理, 1996, 16(2): 27-28.
Liu Shufang, Su Xiuyun, Zhang Xiaoli. A method of rapid determination of ion exchange water hardness ─ ─ chrome black T, methyl red visual colorimetric method[J]. INDUSTRIAL WATER TREATMENT, 1996, 16(2): 27-28.