Molecule of the Week
March 3, 2014
Perfluorotributylamine (PFTBA) is a dense, moderately high-boiling liquid. It is the main component of Fluosol-43, an artificial blood substitute that has been approved by the US Food and Drug Administration for use in cardiac angioplasty. PFTBA is also used as an ingredient in some refrigerants.
But PFTBA has a downside: It is persistent in the atmosphere and a powerful greenhouse gas. In 2013, S. A. Mabury at the University of Toronto used IR spectroscopy data to calculate that PFTBA is the strongest global-warming potential of any compound detected in the atmosphere—7100 times greater than that of CO2.