Figure 1B and C.
Quality of ethylene prepared from ethephon decomposition and ethanol dehydration. (B) Chromatogram of gas species collected from ethanol dehydration by sulfuric acid. (C) Gas species produced by ethanol dehydration were each subjected to MS (mass spectrometry) and ethylene (peak 1), ethanol (peak 2) and diethyl ether (peak 3) are identified.