Structural Properties of Some Synthetically Prepared Manganese Dioxides

Abstract

Various forms of manganese dioxide have been made by methods described in the literature and examined by chemical analysis, x‐ray and electron diffraction, and electron microscopy. Conclusions reached by previous workers mainly from x‐ray analysis have, in general, been confirmed, but some new facts emerge, the most important being evidence of slightly differing forms of dependent in part on crystal size, and of the presence of layers of and or on the surface of certain of the preparations.