WHY DID IT EXPLODE?• A TANK IN THE PROCESS OF REMOVING ETHYLENE GLYCOL THROUGH DISTILLATION EXPLODEDDUE TO OVERHEATING.• THE WORKERS WHERE UNAWARE THE WHOLE TIME THAT RISE IN TEMPERATURE WAS OCCURRINGIT TOOK SEVEN HOURS FOR THE REACTOR VALVE TO EXPLODETHE RISING TEMPERATURE AND EXPANSION INSIDE THE VALVEWAS DUE TO A RUNAWAY REACTIONA RUNAWAY REACTION IS A REACTION THAT LOSES ALLCONTROL AND CONTINUES TO EXPAND ANGROW