Essential oils - Determination of ester values, before and after acetylation, and evaluation of the contents of free and total alcohols

Document Number: NL ISO 1241 : 2017
Sector: chemical technology
TC: NL TC 54
ICS: 71.100.60
This International Standard specifies a method to evaluate the con* alcohols in essential oils by determination of ester values before anhydride in the presence of sodium acetate. The method is not applicable to essential oils containing appreciabl (for example linalol and terpineols), which would not be completely tents of free alcohols and total and after acetylation by acetic e quantities of tertiary alcohols acetylated. NOTE: For these essential oils the method given in IS0 3794l) should be used. The method is not applicable to essential oils containing appreciable quantities of phenols, lactones, aldehydes or enolysable ketones, which wou Id be acetyl( ated in addition to free alcohols.