The decision to burn off the vinyl chloride was a calculated choice to avoid a larger explosion and is a standard procedure in the chemical industry.

“when you ignite the vinyl chloride what actually happens is you end up with hydrochloric acid HCL that's where the chlorine mostly goes and a little bit about a tenth of a percent or less ends up as fast Gene so you know the chemical analysis that these guys are making is how quickly will that phosp”