Absorption Spectra and Linkage of Inorganic Salts in the Vapour State

Abstract

IN continuation of earlier work¹ we have investigated the absorption spectrum of inorganic sulphates and of ammonium nitrate in the vapour state. The same method was employed, but that the SO₂ bands were used as indicator of decomposition of the sulphates. The observed maxima of selective absorption are as follows (in m): H₂SO₄ 262, K₂SO₄ 258, Ag₂SO₄ 265, and ZnSO₄ 269. The red wave limits are 285, 293, 300 and 294 m respectively.