在空气中不稳定，易变成淡红色，可溶于乙醇、水、甲醇、氯仿、丙酮、二甲基甲酰胺、丁酮和二氧六环，微溶于乙醚、四氯化碳、异丙醇和苯耳甲酸二丁酯，极微溶于苯、甲苯、二甲苯和丁醇。低毒，半数致死量（大鼠，经口）650mg/kg。有刺激性。 分光光度测定亚硝酸盐，检定溴酸盐、溴化物、铬酸盐、臭氧、金、铜、重铬酸盐、铁、氧和铂，测定活性氯、铬、铱、亚硝酸盐和钯。 m-Phenylenediamine (MPD) is an aromatic diamine. It copolymerizes with iso- or terephthaloyl chloride and 3,5-diaminobenzoic acid or 2,4-diaminobenzene sulfonic acid (or sulfonate) to afford copolyamides by low temperature solution polymerization. MPD has been reported to be formed selectively during the hydrogenation of m-dinitrobenzene in the presence of bimetallic Ni-Pt catalysts supported on carbon. Cyclic voltammetric method has been proposed to study the electrochemical copolymerization of aniline with MPD in sulfuric acid solution. m-Phenylenediamine may be used in the synthesis of the following: · intrinsically electrically semiconducting microparticles of semiladder poly(m-phenylenediamine-co-2-hydroxy-5-sulfonic aniline) structures · extraction medium based on chitosan-poly(m-phenylenediamine) (CS-PPD) Fe3O4 nanocomposite, used as sorbent for the magnetic solid-phase extraction (MSPE) of polychlorinated biphenyls · series of terpolymers, via chemical oxidative polymerization · thin film composite (TFC) membranes based polyamide · TFC reverse osmosis (RO) membranes