acetaldehyde acetic acid acetone acid dissociation constant acrylic acid acrylic glass agamassan alcohol alkyne ammonia arc welding arsine automobile benzene boiling point bromine butyne cas registry number calcium carbide calcium carbonate calcium hydroxide carbide carbon carbon dioxide carbon monoxide carboxylic acid carburization chemical decomposition chemical formula chemical reaction chlorine coal combustion copper cyanogen cyclooctatetraene davy lamp density diacetylene digital object identifier dimer dimethylformamide edmund davy electric arc furnace england ethane ether ethylene exothermic formaldehyde garlic gas compressor gas cylinder gas giant general anaesthetic hungary hydration reaction hydrocarbon hydrogen hydrogen chloride hydrogen cyanide hydrogen sulfide instability international union of pure and applied chemistry nomenclature iodine journal of chemical education kelvin limestone lithium lithium carbide marcellin berthelot melting point methane molar mass news release niagara falls nitrogen nitrous oxide north petherton organic compound organic semiconductor oxalic acid oxygen phosphine polyacetylene polymerization project gutenberg pyrolysis radiocarbon dating saturn silver simplified molecular input line entry specification soot steel toluene un number united states vinyl vinylacetylene walter reppe water ziegler-natta catalyst