Fig. 7.

The rate of production of other main chemical species inside an isolated spherical air bubble per second calculated by the first bubble collapse as a function of acoustic amplitude [25]. (a) 20 kHz and R₀ = 5 μm. (b) 100 kHz and R₀ = 3.5 μm. (c) 300 kHz and R₀ = 3.5 μm. (d) 1 MHz and R₀ = 1 μm. Reprinted from J. Chem. Phys., vol. 127, K. Yasui, T. Tuziuti, T. Kozuka, A. Towata, and Y. Iida, Relationship between the bubble temperature and main oxidant created inside an air bubble under ultrasound, 154502, Copyright (2007), with the permission of AIP Publishing.