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author:

魏巧华 (魏巧华.) [1] (Scholars:魏巧华) | 孙瑞卿 (孙瑞卿.) [2] (Scholars:孙瑞卿) | 许紫婷 (许紫婷.) [3]

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PKU

Abstract:

EDTA(乙二胺四乙酸二钠盐)浓度标定是大学化学中重要的基础实验.通过深化设计EDTA浓度标定实验方案,详细探究基准物质、氨水、NH3-NH4Cl缓冲液、Mg-EDTA(Mg-Y)及镁溶液、指示剂等关键试剂用量对标定过程和结果的影响,帮助学生加深对络合滴定的认识,掌握不同标定方法的适用条件,增强对实验试剂的作用和"量"的把握,提高分析和解决问题的能力.

Keyword:

EDTA标定 关键试剂用量 标定条件优化

Community:

  • [ 1 ] [魏巧华]福州大学
  • [ 2 ] [孙瑞卿]福州大学
  • [ 3 ] [许紫婷]福州大学

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Source :

化学教育

ISSN: 1003-3807

CN: 10-1515/O6

Year: 2022

Issue: 6

Volume: 43

Page: 77-82

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 1

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