NPB Phaseout: The EPA Petitions to Add NPB to the List of HAPs
N propyl bromide (a.k.a. NPB) is an industrial cleaning agent that became a popular replacement for chlorinated cleaning solvents in the latter decades of the 20th Century. More specifically, NPB became a popular drop-in solution that replaced cleaners containing the chemical compound trichloroethylene, which became commercially available in the U.S. in the 1920s. For many […]