Detection of Inhomogeneity After Mixing Solutions by Analyzing the Chemical Wave Pattern in the Belousov-Zhabotinsky Reaction

Frontiers in Physics

Daigo Yamamoto¹  Akihisa Shioi¹  Erika Okita²  Satoshi Nakata³  Yasunao Okamoto⁴ 

[1] Department of Chemical Engineering and Materials Science, Doshisha University, Kyoto, Japan;Department of Chemical Engineering, Osaka Prefecture University, Osaka, Japan;Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan;Organization for Research Initiatives and Development, Faculty of Science and Engineering, Doshisha University, Kyoto, Japan;

关键词: Belousov-Zhabotinsky reaction;    mixing;    chemical oscillation;    chemical wave;    visualization;    nonlinear dynamics;   

DOI  :  10.3389/fphy.2022.895824

来源: DOAJ

【 摘 要 】

The correlation between BZ reaction and mixing state has been studied for decades, and the researchers are trying to apply it to chemical engineering. We observed a chemical wave pattern in the Belouzov-Zhabotinsky (BZ) reaction based on the inhomogeneity after mixing BZ and ferroin solutions with a mixing method named the rotation-and-stop method. A one-dimensional chemical wave appeared for large inhomogeneity in mixing. The frequency and wavenumber decreased with decreasing degree of inhomogeneity. In an almost perfectly mixed state, the wavenumber significantly reduced and approached the global oscillation. The degree of mixing could be efficiently determined by this reported method. Perfect mixing has never been realized in natural and biological systems. The results of this study can be applied to estimate the degree of mixing in a solution that is not being stirred after the mixing process.

【 授权许可】

Unknown