The integrated band intensities at 296 K of gaseous bromine nitrate (BrONO2) in the spectral range 500-2000 cm(-1) have been measured using Fourier-transform absorption spectroscopy. The absorption spectra were calibrated to absolute absorption cross-sections using the integrated band strength of the v(3) band around 803 cm (1) ( 2.70 +/- 0.50 x 10 (17) cm molecule (1)) published previously. In this way, integrated band intensities were determined for the first time for the v(1) band around 1709 cm (1) (2.43 +/- 0.48 x 10 (17) cm molecule (1)), the v(2) band around 1286 cm (1) (2.99 +/- 0.60 x 10 (17) cm molecule (1)), the weak v(4)/v(8) bands between 720 and 760 cm (1) (0.16 +/- 0.04 x 10 (17) cm molecule (1)) and the v(5) band around 559 cm (1) (1.02 +/-0.20 x 10 (17) cm molecule (1)). The results are compared with the infrared band strengths of chlorine nitrate and with ab initio calculations. (C) 2008 Elsevier B.V. All rights reserved.