What are the problems with nPB?
“nPB” is a chemical abbreviation for one member of the family of brominated solvents, also known as normal-Propyl Bromide or n-Propyl Bromide. These solvents are manufactured by many companies around the world and are an intriguing choice for many customers. nPB is a powerful degreaser with very familiar handling, similar to 1,1,1-trichloroethane that was popular 30 years ago. Solvents based on nPB will boil at about 71°C/160°F so it can be used to remove waxy residues that other solvents cannot touch. It is very aggressive so cleaning is fast and easy. nPB is a volatile organic compound (VOC). It has the potential to contribute to low-level smog and will be unsuitable for use in localities that have strict VOC rules, such as southern California. Interestingly, some people also have claimed nPB is an ozone-depleting solvent. Recent analyses suggest this is not true. The nPB molecule has an atmospheric life of only 11 to 17 days. With such a short atmospheric life, the molecule does not
