File:Distillation apparatus for the determination of free volatile fatty acids (Alessandri 1895.47).png

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Distillation apparatus for the determination of free volatile fatty acids

Summary[edit]

Description
Italiano: Una miscela di acidi grassi liberi (ad esempio, burro lisciviato con potassa alcolica e poi acidificato con acido solforico) viene posta nel pallone A e distillata. Tramite un tubo C con bolla B per fermare eventuali goccioline di acido solforico, si distilla la soluzione eterogenea fino a raccogliere circa 100 mL di liquido in 40'. Il liquido viene filtrato e titolato per determinare il contenuto in acidi grassi volatili.
English: A mixture of freed fatty acids (e.g. butter lixived with alcoholic potash and then acidified with sulphuric acid) is distilled from a round-bottom flask A. Through a pipe C with a glass bubble B to stop any sulfuric acid droplets, a distillate containing volatile fatty acids is collected, filtered and titrated with a base. The distillation yields 100 mL of liquid in around 40'.
Date
Source Alessandri, P. E. Analisi Volumetrica Applicata Ai Prodotti Commerciali e Industriali; Ulrico Hoepli: Milano, 1895.
Author valeg96

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