Abstract
The thermal oxidation of lead was studied in the range 240–330° for periods up to 20 hours. The lead powder samples used gave relatively rapid rates of incrase in weight which were followed by a continuous recording balance. The oxldation obeyed a parabolic rate law, and pseudo-tetragonal lead monoxide was formed. Values of the activation energy for the process indicated that oxidation occurred by diffusion of oxygen through the interstitiai tetrahedral sites which exist in the lead monoxide structure.
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