Abstract
The author confirms the existence of atomic hydrogen in iron nitride:
(1) By tbe presence of hydrogen when heating iron nitride aboce 43°C. at which iron nitride is found to decompose slowly.
(2) By the measurement of the single potential of iron nitride in the normal fargeus sulphate solution.
(3) By the oxidation of atomic hydrogen due to oxygen in the water in which iron nitride is immersed.
(4) By the transformation of potassium ferricyanide into potassium ferrocyanide by atomic hydrogen occluded in iron nitride.
By measuring the single potential of nitrided iron, he observed the change of compact iron into porous iron by nitriding.
The influence of light on the single potential of iron nitride was tested and it was found that light produces no marked photo-chemical effect upon it.
