ETHYLENE
Eth"yl*ene, n. [From Ethyl.] (Chem.)
Defn: A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), — hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen. Ethylene series (Chem.), the series if unsaturated hydrocarbons of which ethylene is the type, and represented by the general formula CnH2n.
ETHYLIC
E*thyl"ic. (Chem.)
Defn: Pertaining to, derived from, or containing, ethyl; as, ethylic alcohol.
ETHYLIDENE
E*thyl"i*dene. (Chem.)
Defn: An unsymmetrical, divalent, hydrocarbon radical, C2H4 metameric with ethylene but written thus, CH3.CH to distinguish it from the symmetrical ethylene, CH2.CH2. Its compounds are derived from aldehyde. Formerly called also ethidene.
ETHYLIN
Eth"yl*in. (Chem.)
Defn: Any one of the several complex ethers of ethyl and glycerin.
ETHYLSULPHURIC
Eth`yl*sul*phu"ric a. (Chem.)
Defn: Pertaining to, or containing, ethyl and sulphuric acid. Ethylsulphuric acid (Chem.), an acid sulphate of ethyl, H.C2H5.SO4, produced as a thick liquid by the action of sulphiric acid on alcohol. It appears to be the active catalytic agent in the process of etherification.