ISO 3793:1976

Essential oils — Estimation of primary and secondary free alcohols content by acetylation in pyridine
The method consists in acetylating the hydroxyl groups containing compounds with a mixture of acetic anhydride and pyridine. The excess of acetic anhydride is hydrolized and the acetic acid formed is titrated with a potassium hydroxide solution. Primary and secondary alcoholes are acetylated completely by this method. Phenols, anthranilates and aldehydes are acetylated either completely or partially. Tertiary alcohols are acetylated only in a negligible extent.
SDO:
ISO
Language:
English
ICS Codes:
71.100.60
Status:
Withdrawn
Publish date:
1976-07-31
Standard Number:
ISO 3793:1976