Does salting-out effect nucleate nanobubbles in water: Spontaneous nucleation?

•Nanobubble density during salting-out effect increases with salting-out parameter.•An ultrasound field with a high amplitude destroys the nanobubbles in salt solution.•R.I. of nanobubbles in NaCl and AlCl3 were estimated to be 1.012 and 1.302, respectively.•The NBs during salting-out effect are observed to be stable only for up to three days.