Stability of parathion and DDT in dilute iron solutions

Abstract
Dilute FeCl3 and Fe(NO3)3, solutions degraded parathion to paraoxon and p‐nitrophenol. Initial hydrolysis products of iron appeared to have the greatest catalytic activity which decreased as these hydrolysis products aged. The Fe3+ ion was less catalyti‐cally active than its hydrolysis products for parathion degradation. pH was not a factor in parathion degradation in this study. AlCl3solutions did not degrade parathion over a 336 hour period. DDT was stable in dilute FeCl3 and Fe(NO3)3 solutions for at least 56 days.