Determination of Mono- and Dialkylacetylenes

Chemical Analysis of Refinery C5 Hydrocarbon Fractions

“…It is generally known that -acetylenes, which have the general formula RCH=CH, tend to react with silver salts to form acetylides. Analytical procedures based on this reaction have been so well worked out that little additional detail can be justified here [1,26).…”

Detection and Characterization of Acetylenes by Hydration to Carbonyl Compounds and Formation of 2,4-Dinitrophenylhydrazones

“…Hydration of alkynes was applied by Wagner (21) to the quantitative estimation of acetylene bonds by using standard base to titrate the hydrochloric acid liberated when the ketone is oximated with hydroxy lamine hydrochloride. A boron trifluoride mercuric oxide catalyst was used for the analysis of the low Acetylene hydration followed by dinitrophenylhydrazone formation meets the requirements of an ideal functional group test (17) in that the sign of reaction is based on a chemical change in the substrate and the reactions occur with acetylenes which differ greatly in reactivity.…”