On the corosion resistance of metallic materials by agricultural chemicals (III)

Abstract

The corrosion resistance of low carbon steel alminium, duralumin, copper, brass, zinc and tin were studied for 500, 1000, 1500 times diluted aqueous solution of uspulun and 800 times diluted aqueous solution of time sulphur compound, respectively,
The loss of carbon, steel in uspulun solution is great at large dilution and in linearly increase with time. In the case of the lime sulphur compound solution the loss is little at short time but is rapidly increase with increasing time. Alminium and duralumin behave same manner in uspulun solution but the loss of duralumin is rapidly increase with increasing dipping time in lime sulphur compound solution. In the case of copper and brass, the relation between the loss and the dipping time in uspulun solution is not clear so. Copperr is severely attacked by lime sulphur compound solution followed by repeating action of formation and fall off of the dark skin product on surface.