Gives two methods for the potentiometric determination of the carbonyl value of essential oils which contain carbonyl compounds. Method 1 is based on a cold oximation reaction with hydrxoylammonium chloride with exception of citronellal which need a low temperature to avoid cyclization phenomena and acetylization. Method 2 is based on a hot oximation reaction with hydroxylammonium chloride and applies to essential oils whose main constituents are ketones which are general oximable only with difficulty.
Status: PublishedPublication date: 1996-12
Edition: 3Number of pages: 6
Technical Committee: ISO/TC 54 Essential oils
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|std 1 40|
|std 2 40||Paper|