ISO 3793:1976
$11.05
Essential oils — Estimation of primary and secondary free alcohols content by acetylation in pyridine
| Published By | Publication Date | Number of Pages |
| ISO | 1976-08 | 4 |
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.
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