Ethylene oxide successfully removed from overturned tank car

By performing a hot tap and using special tools to defeat safety and check valves, railroad and chemical plant personnel safely removed ethylene oxide from an overturned tank car in January 1998.The tank car flipped onto its side when it was hit by a train traveling at 35 mph. The oncoming train had just moved onto a shorter side track from a main line into a southern chemical plant.Although severely damaged, the tank car carrying ethylene oxide, did not rupture or leak.Ethylene oxide is toxic and extremely flammable. At room temperature, it must be maintained under pressure to remain in a liquid state. At atmospheric pressure, it boils at 51° F.On-site personnel acted immediately to ...

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