The synthetic nitro-aromatic compound 1,3-dinitrobenzene (1,3-DNB) is utilized in explosives, dyes, pesticides, and insecticides, and as an intermediate in the synthesis of chemicals.[1] 1,3-DNB contamination in the environment may be hazardous to animals and humans, and since it is easily absorbed through the skin and auditory therapy, it is continually causing damage to the central nervous system, visual adaption, and overall health.[1] Electrochemical studies are primarily used to track the chemical and electrochemical reactions that occur at the electrode surface.[2] Various types of reactions can be explored using electrochemical methods at varied time intervals ranging from microseconds to hours. By electrochemical reactions, the desired species can be synthesized, identified, and decomposed near the electrode surface. The electrochemical reduction of the nitro group in 1,3-DNB represents a powerful and widely used transformation that allows for the introduction of an amine or hydroxylamine group in the molecule.[3] This study set out to investigate the electrochemical properties of 1,3-DNB in various aqueous solutions (with pH=1-13). The electrochemical behavior of 1,3-DNB was investigated by cyclic voltammetry (CV), chronoamperometry, and chronopotentiometry on a glassy carbon (GC) electrode. Differential pulse voltammetry (DPV) measurements were additionally performed to determine the number of transferred electrons in the reduction process of the nitro group. The cyclic voltammograms of 1,3-DNB showed two cathodic peaks (CN1 and CN2) corresponding to two nitro groups, whereas no anodic peaks were observed in the sweeping area.[4] The first irreversible cathodic peak (CN1) corresponds to the reduction (by transferring 4e-/4H+) of one of the nitro groups of 1,3-DNB to the hydroxylamine group. The second irreversible cathodic peak (CN2) also corresponds to the reduction (by transferring 4e-/4H+) of the other nitro group to hydroxylamine. The anodic (A1) peak
