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Type: Artigo de periódico
Title: Paraformaldehyde as an end-point indicator in hydrolytic thermometric titration of metal ions and iodine
Author: Fernandes, JCB
Aleixo, LM
Neto, GD
Godinho, OES
Abstract: The use of paraformaldehyde (PF) as an end-point indicator in hydrolytic titrations involving precipitation, complexation and redox reactions was investigated. The decrease in temperature caused by depolymerization of PF, catalysed by hydroxyl ions produced by hydrolysis of excess of titrant, was employed to locate the end-point of the titration, The results of titrations of alkaline earth metals with carbonate, several metal ions with EDTA and iodine with arsenite are presented.
Subject: hydrolytic thermometric titration
catalytic end-point detection
precipitation, complexometric and redox titrations
Country: Inglaterra
Editor: Royal Soc Chemistry
Rights: aberto
Identifier DOI: 10.1039/an9962100559
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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