The combination of hydrogen and oxygen in contact with hot surfaces

The authors have made a systematic investigation of the slow combination of hydrogen and oxygen in contact with various heated surfaces, including porous porcelain, magnesia, metals such as gold, silver, platinum and nickel, and reducible oxides such as ferric oxide, nickel oxide, and copper oxide. In each case the moist gaseous mixture was circulated at a uniform speed over the surface, which was maintained at a constant temperature in the combustion tube of the “circulation apparatus” employed by the authors in their researches on the slow combustion of hydrocarbons.