The influence of electrolytes in aqueous solutions on gas-liquid mass transfer in an oscillatory flow reactor

•kLa in OFR-SPC was higher (up to 5-fold) than in conventional gas-liquid contactors, with moderate power consumption.•An increase in oscillatory conditions improved gas-liquid mass transfer and decreased bubble size.•kL and a were not affected below the electrolyte transition concentration in the OFR-SPC.•Gas holdup and bubble size were not affected below the electrolyte transition concentration in the OFR-SPC.