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ISO 3794:1976

Essential oils (containing tertiary alcohols) — Estimation of free alcohols content by determination of ester value after acetylation

NORMA vydána dne 1.12.1976

Anglicky -
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Anglicky -
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Francouzsky -
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The information about the standard:

Designation standards: ISO 3794:1976
Publication date standards: 1.12.1976
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Kategorie: Technické normy ISO

Annotation of standard text ISO 3794:1976 :

Description / Abstract: The estimation is carried out by acetylation of the essential oil by acetyl chloride and acetic anhydride, in the presence of dimethylaniline. The acetylated oil is isolated and dried and the ester value is determined. The free alcohols content is calculated taking into account the ester values of the same but non-acetylated essential oil. This method is applicable to essential oils containing an appreciable proportion of tertiary alcohols, namely of linalol and terpineol. It is not applicable to essential oils containing appreciable proportions of phenols, anthranilates, lactones and aldehydes.