OSHA's investigation found the 61-year-old employee suffered fatal injuries on April 4, 2014, while clearing a blockage on the drain line to a reactor. An expansion joint failed and caused a thermally heated chemical mixture to spew onto the employee. The mixture predominately contained Bisphenol A, commonly known as BPA, and hydrochloric acid, acetone and phenol, used in the manufacture of resins, flame retardants and coatings.