Research Article
Apr 1966
Dichromate Versus Ceric Sulphate in COD Determinations
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VIEW THE REPLYAuthors: M. A. El-Dib and F. M. RamadanAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 92, Issue 2
Abstract
The oxidizing powers of dichromate and ceric sulphate are investigated with various catalysts. The study includes 32 pure organic compounds of various chemical structures. The highest possible oxidation yield is obtained with dichromate in the presence of silver sulphate as a catalyst. Oxidation by ceric sulphate is considerably enhanced by using chromium catalyst. However, certain organic compounds undergo oxidation only in the presence of a double catalyst, namely, Cr plus Ag. Silver and chromium tend to enhance ceric reactions prominently with compounds such as o-cersol, o-toluidine, acetylacetone, acetic acid, lactic acid, succinic acid, and alanine.
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Published In
Journal of the Sanitary Engineering Division
Volume 92 • Issue 2 • April 1966
Pages: 97 - 102
Copyright
© 1966 American Society of Civil Engineers.
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Published in print: Apr 1966
Published online: Feb 12, 2021
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M. A. El-Dib
Chemist, Water Pollution Unit, National Research Centre, Dokki, Cairo, Egypt, U. A. R.
F. M. Ramadan
Head of Water Pollution Unit, National Research Centre, Dokki, Cairo, Egypt, U. A. R.
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