ISO 1279-1996 精油 羰值的测定 盐酸羟胺电位法

标准号：ISO 1279-1996
中文标准名称：精油 羰值的测定 盐酸羟胺电位法
英文标准名称：Essential oils - Determination of carbonyl value - Potentiometric methods using hydroxylammonium chloride
标准类型：Y41
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Y41
国际标准分类号：71.100.60
适用范围：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.