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ProfessorGAC

(64,789 posts)
3. I Read The TPC Preliminary Report
Tue Jul 28, 2020, 12:00 PM
Jul 2020

There's no question in my mind they did not have proper Class 1 Div 1 protections in the entire vicinity of that operation.
Butadiene is highly volatile, and the bond energy creates a combustion release higher than that of gasoline vapor.
It's much heavier than air (in vapor state) and boils at 24°F.
The ignition source had to be close to the release point as the spread would be modest and slow due to density.
They had to have had electrical systems that were underclassed.

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