Mossbauer study of corrosion of mild steel induced by acid rain

Room temperature corrosion studies have been made on the rust of commercial ly available mild steel in a simulated acid rain environment using the meth od of transmission Mossbauer spectroscopy. The main corrosion products iden tified are alpha-FeOOH, gamma-FeOOH, and a product with unfamiliar paramete rs which seems to be amorphous in nature (being very large linewidth simila r to 2.5 mm/s) and may be considered as an intermediate phase. A small amou nt of gamma-Fe2O3 (6-8%) is also observed.