From: Richard Prankerd (richard$##$pharmacy.uq.edu.au)
Date: Sun Aug 08 1999 - 23:05:37 EDT
In reply to:
>Why is the use of permanganate not advisable?
>Please enlighten me further.
>
Permanganate (either acidic or alkaline) is used as a general purpose
oxidant in the following situations:
(1) to oxidise materials separated on glass thinlayer plates as a general
(non-discriminating) detection method
(2) to oxidise traces of organic impurities in the preparation of high
quality distilled water for use in precision UV spectrophotometric
measurements. When used in alkaline solution, all the organic matter is
oxidised to CO2, which is retained in the distilling flask as carbonate
(3) as means of disinfecting water supplies
The above indicate the vigorous nature of permanganate oxidations, which
make it less suitable for specific synthetic steps.
Richard
Richard J. Prankerd, PhD
Senior Lecturer
School of Pharmacy
University of Queensland Phone: INT + (617) 3365-3179
St Lucia QLD 4072 Fax: INT + (617) 3365-1688
AUSTRALIA richard$##$pharmacy.uq.edu.au
http://www.uq.edu.au/pharmacy/rprank.html
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