ISO 3793:1976
Essential oils — Estimation of primary and secondary free alcohols content by acetylation in pyridine
OVERVIEW
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.
COMMENTS
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PRODUCT DETAILS
| Status | Withdrawn - 03 Jan 2024 |
|---|---|
| Edition | 1976 |
| No. of Pages | 2 |
| ICS Classification | 71.100.60 Essential oils |
| Committee | ISO/TC 54 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |