As far as ascertained by the writers, acidity in silage is determined by extracting either with water or with alcohol and titrating with a standard alkali solution, using phenolphthalein as indicator. Estenj2 Hart and Willaman,3 Dox and Neidig,4 use water as the solvent. With certain kinds of silage, water gives an extract difficult to filter. Alcohol as a solvent appears not to have been so thoroughly tried by experiment station chemists. To compare water and alcohol as extractive reagents in determining the acidity in silage, was the object of the following experiments. The work of Dox and Neidig, and of Hart and Willaman has shown that the principal volatil acids in silage are: acetic, propionic, butyric aad valeric, acetic constituting 75% or more of the total. Lactic is as
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.