The tanker in the middle is steaming. My bet's on that one blowing first.
Yeah, I've been watching that one too.
Those rail cars have a pressure relief device on them. That is probably what the "steam" is. I am guessing the set pressure of the relief valve is probably around 75 to 100psi
Mineral Spirits have a flash point of around 109degrees F. the auto ignition temp is around 473 degrees F. As long as the relief valve functions there should be little chance of a "BLEVE" or Boiling Liquid Expanding Vapor Explosion. If that relief valve fails things will get real exciting real fast!!!
Regards
alfa6 ;>}