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Catalyst Systems Inc. Reactive Chemical Explosion
Gnadenhutten, OH, January 2, 2003
Catalyst Systems Inc. Reactive Chemical Explosion
Catalyst Systems production facility shows damage after an explosion of benzoyl peroxide

Incident Description
On January 2, 2003, a vacuum dryer holding nearly 200 pounds of benzoyl peroxide exploded at the Catalyst Systems Inc. production facility in Gnadenhutten, Ohio. Employees were in the process of drying granular benzoyl peroxide, which is unstable at high concentrations, when the explosion occurred. The explosion and subsequent fire damaged the production facility, and one Catalyst Systems employee received a minor injury while evacuating the building.

Investigation Status
The Board approved a case study report on this investigation at a public meeting in Washington, DC, on October 29, 2003.

Reports Final Investigation Report
News Releases News Release October 29, 2003 - CSB Case Study Cites Deficient Management Systems, Inadequate Safeguards in Gnadenhutten, Ohio, Explosion and Fire
Presentations Slide Presentation from Board Public Meeting, Washington, DC, October 29, 2003
Notices Federal Register Notice for Board Public Meeting, Washington, DC, October 29, 2003
Transcripts Transcript of Board Public Meeting, Washington, DC, October 29, 2003