IN THE petroleum and other industries it is often necessary to determine the free acidity as well as saponification numbers of darkcolored substances. As many of these substances have comparatively high melting points and are very little soluble in alcohol, in recent years it has become
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.