Numéro de référence
ISO 2527:1974
ISO 2527:1974
© ISO 2024
ISO 2527:1974
Esters de l'acide adipique à usage industriel — Dosage des esters — Méthode volumétrique
Edition 1
1974-04
1974-04
Annulée
Résumé
The method is applicable to simple and mixed alcohol esters that are liquid at ambient temperature. The following principle is specified: Saponification of the ester using potassium hydroxide in ethanolic solution followed by titration with standard volumetric hydrochloric acid solution in the presence of phenolphthalein as indicator. In the case of mixed alcohol esters the relative molar mass of which can only be estimated the saponification and ester values are used to express the result.