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ISO 3793:1976

Essential oils — Estimation of primary and secondary free alcohols content by acetylation in pyridine ISO 3793:1976

Publication date:   Aug 1, 1976

95.99   Withdrawal of Standard   May 2, 2005

General information

95.99   Withdrawal of Standard   May 2, 2005

ISO

ISO/TC 54 Essential oils

International Standard

71.100.60   Essential oils

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 3793:1976
95.99 Withdrawal of Standard
May 2, 2005




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