Масла эфирные. Оценка содержания первичных и вторичных свободных спиртов ацетилированием в пиридине
Название (англ.):
Essential oils; Estimation of primary and secondary free alcohols content by acetylation in pyridine
Описание (англ.):
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 acetylatedonly in a negligible extent.
Дата регистрации:
01.10.76
Дата введения:
01.08.76
Код КГС:
Н69
Код ОКСТУ:
9169;9151
Код ОКС(МКС):
71.100.60
Код ОКП:
9169;9151
Нормативные ссылки:
NF T75-106-1976, EQV
Ключевые слова:
ALCOHOL ALCOHOLS ALIPHATIC ALCOHOLS CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT ESSENTIAL OILS CHEMICAL ANALYSIS AND TESTIN