Studies on the Stability of Organomercuric Pesticides Part I

Stability of Phenylmercuric Acetate Dust Formulation

Abstract

Stability of phenylmercuric acetate dust formulation (PMA dust) was studied. To determine PMA in the PMA dust, PMA was extracted from dust formulations by shaking with 0.6 N-HCL-methanol mixture and Miller's dithizone method was applied. For the determination of total mercury in the PMA dust, cuppric diethyldithiocarbamate method was applied after decomposition of PMA by 6 N-HCI.
Various factors of diluents having effect on the decomposition of PMA dust were investigated. Some relationships were observed, between the rate of decomposition of PMA and some properties of diluent such as adsorption power, basicity and the amount of sulfide.