â¢ When boilers or furnaces experience an. overheated condition, catastrophic damage to. the heating unit, safety controls and components. is likely. â¢ PSE&G treats this situation with the highest. degree of emergency response - similar to an. inside gas leak with open air gas readings of 1%. or greater.
ethylene glycol. (glÄ«'kÃ´l') A poisonous, syrupy, colorless alcohol used as an antifreeze in heating and cooling systems that use water. Ethylene glycol is chemically like ethanol but has two hydroxyl (OH) groups instead of one. Also called glycol. Chemical formula: C2H6O2.
Definition of ETHYLENE. 1. : a colorless flammable gaseous unsaturated hydrocarbon C2H4 that is found in coal gas, can be produced by pyrolysis of petroleum hydrocarbons, and occurs in plants functioning especially as a natural growth regulator that promotes the ripening of fruit.2.: a divalent hydrocarbon group C2H4 derived from ethane.. : a colorless flammable gaseous unsaturated hydrocarbon C2H4 that is found in coal gas, can be produced by pyrolysis of petroleum hydrocarbons, and occurs in plants functioning especially as a natural growth regulator that promotes the ripening of fruit.