JOURNAL ARTICLE

A theoretical consideration on the chelatometric titration using Xylenol Orange as a metal indicator

Makoto Otomo

Year: 1965 Journal:   BUNSEKI KAGAKU Vol: 14 (5)Pages: 457-461   Publisher: Japan Society for Analytical Chemistry

Abstract

キシレノールオレンジを指示薬として金属イオンを滴定するときの当量点付近における指示薬の変色を理論的に考察し,すでに測定された金属-キシレノールオレンジ錯体の生成定数をもとにして滴定が可能かどうかを検討した.この結果,カドミウム,コバルト,銅,亜鉛,インジウムおよび希土類元素について計算した滴定可能なpH範囲は,実験的に求められた滴定条件とよく一致することがわかった.鉄(III)は平衡論的にも,また実験的にも滴定が不可能であるが,ニッケル,マンガンなどは適当な条件を選べば滴定が可能であると思われる.また,鉛のキレート滴定についても言及した.

Keywords:
Xylenol orange Titration Chemistry Metal Orange (colour) Nuclear chemistry Inorganic chemistry Organic chemistry Food science

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Topics

Water Quality Monitoring and Analysis
Physical Sciences →  Environmental Science →  Industrial and Manufacturing Engineering
Analytical Methods in Pharmaceuticals
Physical Sciences →  Chemistry →  Analytical Chemistry
Electrochemical Analysis and Applications
Physical Sciences →  Chemistry →  Electrochemistry

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