Several people were injured at a New Jersey factory when a four-alarm blaze broke out following an explosion. According to a CBS New York news report, the factory accident occurred at Crest Foam Industries on Carol Place in Moonachie. Of the 17 employees in the factory, four were hospitalized with head injuries after the explosion. Officials worried that dangerous toxins may have been released into the air, but tests proved negative. An investigation is underway into the cause of the explosion, but officials know that workers were mixing hydrogen and oxygen to make polyurethane foam at the time of the accident.
Polyurethanes are a type of reaction polymer that is produced through chemical reactions. If water is present in the reaction mixture, it can create foam. Fully reacted polyurethane polymer is not considered dangerous, but it is a combustible solid that can be ignited. Furthermore, some polyurethane foam contain hazardous or regulated components.