n-Propyl Bromide (nPB)
N-propyl bromide (nPB) or 1-bromopropane, is a relatively new solvent that is used in vapor degreasing, metal cleaning, and dry cleaning; as a solvent carrier in adhesives; and as a chemical intermediate. The US Environmental Protection Agency (EPA) classifies nPB as a volatile organic compound (VOC).Use of nPB is increasing as an alternative for other solvents that have become more strictly regulated, such as methylene chloride, perchloroethylene (perc), and trichloroethylene (TCE). This trend is of concern because evidence has emerged linking nPB to a range of human health hazards. In 2009, nPB was added to the list of Toxic or Hazardous Substances subject to regulations under the Massachusetts Toxics Use Reduction Act (TURA). nPB is relatively new on the market and has received minimal regulatory attention to date.
The Massachusetts Toxics Use Reduction Act (TURA) program has added nPB to the list of toxic or hazardous substances.Starting in 2010, facilities with 10 or more full time employee equivalents that manufacture or process 25,000 pounds or more of nPB per year, or otherwise use 10,000 pounds or more per year, are required to report on their use and to conduct toxics use reduction planning.