Numéro de référence
ISO 3793:1976
ISO 3793:1976
Huiles essentielles — Évaluation de la teneur en alcools libres primaires et secondaires par acétylation pyridinée
Edition 1
1976-08
Annulée
ISO 3793:1976
9325
Annulée (Edition 1, 1976)

Résumé

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.

Informations générales

  •  : Annulée
     : 1976-08
    : Annulation de la Norme internationale [95.99]
  •  : 1
     : 2
  • ISO/TC 54
    71.100.60 
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