Abstract: On May 16, 2008, Employee #1 was walking in a hall at a facility that used a vacuum drying oven to dry chemicals. The chemical in the oven was potassium tetrakis (pentafluorophenyl) borate which contained hexane and toluene. The oven was being used to remove the hexane and toluene. The chemicals ignited and caused an explosion that drove steel door off its hinges, turned the oven 45 degrees, and ruptured the condensate line. Additional hexane and toluene spilled into the area which caused a second explosion. The second explosion drove debris and material toward Employee #1 who was passing through the area in an exterior hall. Employee #1 suffered third-degree burns and unspecified internal injuries. He died due to internal bleeding.