NIOSH recommends reducing o-toluidine and aniline exposures to the lowest feasible concentration through hazard awareness, training of workers, and use of engineering controls, good work practices, and personal protective equipment.
NIOSH alert: request for assistance in preventing bladder cancer from exposure to o-toluidine and aniline.
1 M o-toluidine were dissolved with vigorous magnetic stirring for 30 min.
152 V vs SCE is attributed to the irreversible oxidation of o-toluidine since a black-colored uniform film is deposited on the mild steel.
Thus, the synthesis of the POT coatings on the mild steel substrate from aqueous tartrate solution occurs in two steps: (i) passivation of the mild steel surface via the formation of iron tartrate and (ii) the electrochemical polymerization of o-toluidine on the passivated mild steel.
The o-toluidine is readily and concurrently concentrated on the mild steel substrate in the standard electrolyte with CdO-nanoparticles, which results in a greater chance for nucleation, and hence, higher polymerization rate is observed.
Thus, the electrochemical polymerization of o-toluidine on the mild steel in the standard electrolyte containing CdO-nanoparticles results in the formation of POT-CdO nanoparticle composite coatings on mild steel.