284.    BOEHM, E., AND BONHOEFFER, K. F.  [Gaseous Reactions of Active Hydrogen.]  Ztschr. Physial, Chem., vol. 119, 1926, pp. 385-399; Chem. Abs., vol. 20, 1926, p. 3645.

                  Reactions of H₂ activated by luminous discharge have been studied semiquantitatively for the following substances:  O₂, H₂O, N₂, NH₃, Cl₂, HCl, Br₂ HBr, H₂S, CH₄, CO, CO₂, and CH₃Cl.  The H₂ behaves as though it consisted of free atoms; with O₂ it forms directly H₂O₂, with CO and CO₂ it forms small quantities of CH₂O.  The halogens, which react very rapidly, form H halides.  The active form of H is rapidly and completely destroyed by HCl, HBr, H₂S, and CH₃Cl, probably because of reactions like H+HCl=H₂+Cl.  N₂, H₂O, NH₃, and CH₄ are indifferent.  Small quantities of O₂ increased the yield of active H₂ as they also increase the intensity of the Balmer spectrum; but the other gases tried had no effect.