The sonochemical hot spot

  title={The sonochemical hot spot},
  author={Kenneth S. Suslick and David A. Hammerton and Raymond E. Cline},
  journal={Journal of the American Chemical Society},
The origin of “sonochemistry” is acoustic cavitation: the formation, expansion, and implosive collapse of bubbles in liquids irradiated with ultrasound. The compression of such bubbles generates intense local heating, which has been quantified recently from both chemical kinetic thermometry and from high‐resolution sonoluminescence spectra. The temperatures reached during cavitation are ≈5000 K, but have an effective lifetime of only a few microseconds. Consistent with this, the… 

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Sonoluminescence and sonochemistry

  • K. Suslick
  • Physics, Chemistry
    1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)
  • 1997
The chemical effects of ultrasound originate from acoustic cavitation, which produces extremely energetic local transient conditions. In cavitating clouds of bubbles, both sonochemistry and

Acoustic cavitation and its chemical consequences

  • K. SuslickY. Didenko M. Wong
  • Chemistry
    Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
  • 1999
Acoustic cavitation is responsible for both sonochemistry and sonoluminescence. Bubble collapse in liquids results in an enormous concentration of energy from the conversion of the kinetic energy of

Inside a collapsing bubble: sonoluminescence and the conditions during cavitation.

Application of spectrometric methods of pyrometry as well as tools of plasma diagnostics to relative line intensities, profiles, and peak positions have allowed the determination of intracavity temperatures and pressures.

Sonoluminescence temperatures during multi-bubble cavitation

Acoustic cavitation—the formation and implosive collapse of bubbles—occurs when a liquid is exposed to intense sound. Cavitation can produce white noise, sonochemical reactions, erosion of hard

Spectrally resolved sonoluminescence as a probe of cavitation

The collapse of bubbles during acoustic cavitation in liquids generates intense local heating, either by adiabatic compression or through shock wave formation. We have been able to quantify local

Temperature inhomogeneity during multibubble sonoluminescence.

By examining the MBSL from aqueous H3PO4 solutions, the observed ultrabright sonoluminescence, found strong molecular emissions from both OHC and POC radicals, and have succeeded in using both simultaneously as spectroscopic thermometers.

Applications of Sonochemistry to Materials Synthesis

One of the most important recent applications of sonochemistry has been to the synthesis and modification of inorganic materials [1–5]. In liquids irradiated with high intensity ultrasound, acoustic

The Chemical History of a Bubble.

The studies discussed herein have revealed that extraordinary conditions are generated inside the collapsing bubbles in ordinary room-temperature liquids: observable temperatures exceeding 15 000 K, pressures of well over 1000 bar (more than the pressure at the bottom of the Mariana Trench), and heating and cooling rates in excess of 1000 K·s-1.




  • Symp . Proc .
  • 1981

The sonochemical hot spot

  • 1986