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.
PET is made by reacting ethylene glycol with either terephthalic acid or its methyl ester in the presence of an antimony catalyst. The reaction is carried out at high temperature and vacuum to achieve the high molecular weights need to form useful fibers.PET is melt spun. For a detailed production flowchart, go here.ET is made by reacting ethylene glycol with either terephthalic acid or its methyl ester in the presence of an antimony catalyst. The reaction is carried out at high temperature and vacuum to achieve the high molecular weights need to form useful fibers.