Abstract
Formation of N-nitrosamines from nitrite and secondary amines in acidic solutions was affected by inorganic and organic salts such as chloride, succinate, citrate and tartrate. Formation of N-nitrosodimethylamine at pH 5 was inhibited more effectively than pH 3. The dissociation constant of nitrous acid-nitrite in the solution was decreased by addition of these salts. The salts influenced the nitrous acid nitrite equilibrium to inhibit N-nitrosation of secondary amines.