GB/T 14454.6-2008 English PDF (GBT14454.6-2008)
GB/T 14454.6-2008 English PDF (GBT14454.6-2008)
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GB/T 14454.6-2008: Fragrance/Flavor substances -- Quantitative evaluation of residue on evaporation
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GB/T 14454.6-2008: Fragrance/Flavor substances -- Quantitative evaluation of residue on evaporation
Method I of this Part of GB/T 14454 specifies the method for determination of the carbonyl value of essential oils and the carbonyl compounds content in isolated and synthetic fragrance/flavor substances using hydroxylammonium chloride. A cold oximation reaction with hydroxylammonium chloride of this method applies to fragrance/flavor substances whose main constituents are easily oximable aldehydes and ketones, with the exception of citronellal which needs a low temperature to avoid cyclization phenomena and acetalization. A hot oximation reaction with hydroxylammonium chloride applies to fragrance/flavor substances whose main constituents are ketones which are in general oximable only with difficulty.
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