THE CORROSION AND INHIBITION OF COPPER POWDERS

The corrosion rate of copper powders in moist air obeyed a parabolic law. The rate constant was influenced by temperature, humidity, surface structures of the powders and production method. Surface treatment was carried out with triazine dithiol in different solvents and with hydrazine. The amounts of absorbed triazine dithiols on the powders and the adsorption rate was influenced by temperature, time, solvents, concentration, the kinds of triazine dithiols and the amounts of oxides. The corrosion rate decreased on introducing triazine dithiol films with water repellency and insulation of the copper powders.