Two chemical plant operators, 40 and 50, died after suffering burns to their bodies when a runaway reaction caused an explosion of flammable liquids. The two victims were working in a building which contained several tanks of chemicals. An employee in an adjacent area reported an ammonia odor coming from the building. The two victims and their supervisor searched the building and discovered a puffing/venting from a feed tank. They further determined that a tank (#302) adjacent to the feed tank was heating up. Tank #302 contained flammable chemicals.
Runaway reaction fatality explosion (TNOSHA)