Abstract
In this rescarch the tendency of corrosion of zirconium was examined, using Zr-plate (1cm×1cm) of 99.99% of purity as anode and maintaining the temperature of the cell at 20°C, other conditions being the same as in the former research.
The results are as follows:
In H2SO4 though the corrosion quantity is small at the range of 10-55%, the corrosion proceeds at about 5%, 60% and more.
In HCl, the corrosion quantity is large regardless to the concentration.
The corrosion hardly proceeded in HNO3, H3PO4, CH3COOH, NH4OH and KOH.
In NaCl solution, the corrosion degree resembles that of HCl owing to the effect of Cl- ion.
In the mixed solution of HCl and HNO3, zirconium metal has no corrosion resistance as in aqua regia.
