Silver—gelatin method for determination of inorganic peroxides in alkaline solution

An aqueous solution of gelatin binds silver(I) at pH >7 and a yellow silver sol can be produced from this by reduction. The sol reacts with peroxide in strongly ammoniacal medium to give a colourless solution. The reaction may be used for photometric and visual titration of peroxide with relative...

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Bibliographic Details
Published in:Talanta (Oxford) 1988-08, Vol.35 (8), p.658-660
Main Authors: Pal, T., Maity, D.S., Ganguly, A.
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
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Summary:An aqueous solution of gelatin binds silver(I) at pH >7 and a yellow silver sol can be produced from this by reduction. The sol reacts with peroxide in strongly ammoniacal medium to give a colourless solution. The reaction may be used for photometric and visual titration of peroxide with relative standard deviations of 0.4 and 1.5% respectively and also for its spectrophotometric determination.
ISSN:0039-9140
1873-3573
DOI:10.1016/0039-9140(88)80151-6