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ISO 1271:1983

Essential oils -- Determination of carbonyl value -- Free hydroxylamine method
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ISO 1271:1983

Essential oils -- Determination of carbonyl value -- Free hydroxylamine method

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The determination is carried out by converting the carbonyl compounds to oximes by reaction with free hydroxylamine liberated in a mixture of hydroxylammoniumchloride and potassium hydroxide. The excess alkali is titrated with hydrochloric acid solution, either colorimetrically or potentiometrically. The method is applicable to essential oils which contain carbonyl compounds (especially ketones, excluding methylketones) which are difficult to convert to oximes by the method specified in ISO 1279. The method is not applicable to essential oils which contain substantial amounts of esters of other alkali-sensitive constituents.

SDO ISO: International Organization for Standardization
Document Number ISO 1271
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 54
Publish Date Document Id Type View
Not Available ISO 1271:1983 Revision