Total absorptance ∫ A(ν)dν has been determined as a function of absorber concentration w and equivalent pressure Pe for the major infrared absorption bands of carbon dioxide with centers at 3716, 3609, 2350, 1064, and 961 cm−1. The results in the 875–495 cm−1 region are expressed in terms of mean spectral absorptance for five separate subregions. The effects of temperature variations on absorption in some regions are discussed. Estimates of band intensity ∫ k(ν)dν are given for each band and are compared with the results of others.
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