3688.     WIELAND, H.  [Combustion of Carbon Monoxide.]  Ber. deut. chem. Gesell., vol. 45, 1912, pp. 679-685; Chem. Abs., vol. 6, 1912, p. 1409.

        Combustion of CO in O₂ or air, in presence of Pd and H₂O, has been explained by assuming the formation of H₂O₂ and the simultaneous formation of CO₂ and H₂O₂ from CO, H₂O, and O₂.  This oxidation is not dependent upon O₂ of air, but takes place thus:  CO+H₂O=CO₂+H₂.  The 1^st product is HCOOH, which decomposes into CO₂ and H₂, the latter once more forming H₂O and O₂ of air.  The presence of HCOOH may be shown by directing a CO flame upon ice, neutralizing the water formed with Ba(OH)₂, filtering, and testing with AgNO₃.