650.    CUELLAR, F. T.  Organic Bases and Salts for the Purification of Gas. Ion, vol. 5, 1945, pp. 755-760; Chem. Abs., vol. 41, 1947, p. 2863.

     Review of substances used in the removal of undesirable constituents of gases used in the synthesis of NH₃, the Fischer synthesis, and hydrogenation.  12 refs.