N-propyl bromide (aka. 1-Bromopropane, nPB, CAS# 106-94-5) is an effective yet toxic chemical used as cleaner and degreaser in industrial applications because is nonflammable, has high solvency and is relatively inexpensive. Applications include aerosol cleaners, in vapor degreasers, ultrasonic cleaning equipment and immersion (cold) cleaning.
Since 2007, nPB has been approved for use under the U.S. EPA's Significant New Alternatives Policy (SNAP) as a suitable replacement for ozone depleting chemicals and remains. However, in an August 2020 report, the EPA has determined that nPB solvent “presents an unreasonable risk.”
Fortunately, Hisco offers newer, safer cleaning n-propyl bromide alternatives that not only provide the required cleaning performance but are also affordable.