Three different salts (potassium acetate, potassium sodium tartarate and potassium oxalate) were tested alternatively to the sodium chloride used in reactive dyeing of cotton fabrics. Dyeing was carried out at 60 ^oC with a liquor ratio 1:10 and the dye (Reactive Orange 84) was separately applied to the cotton samples at 1% depth of shade in the presence of different quantities (10, 30, 50 and 70 g/L) of these salts. Exhaustion and fixation percentages were calculated for each different case. CIELAB coordinates were determined and the fabrics dyed were visually assessed in a light box. Fastness properties were tested according to the standard methods. The results obtained with these salts were compared to those with sodium chloride. Conclusively, it was proposed that potassium acetate may be used instead of sodium chloride as an electrolyte in reactive dyeing the cotton fabrics.