Effects of Ultrasound on pH and Conductivity of K2HPO4 Solution
In order to elucidate the role of various ultrasonic effects on pH and conductivity of K2HPO4 solution, the dependencies of both properties on the solution temperature which rises due to ultrasonic thermoeffect are investigated. As the K2HPO4 solution is heated by the conventional method, the pH is linear with the reciprocal of thermodynamic temperature and the conductivity is linear with the temperature when the solution is irradiated by the ultrasound. Therefore, it is reasonably thought that ultrasonic thermo-effect, rather than cavitation and mechanical effect, is the primary factor affecting the ionization equilibrium and the ion migration in K2HPO4 solution. Based on the founded mathematical model for the temperature of bulk solution under ultrasound irradiation, the quantitative terms for the pH and the conductivity of K2HPO4 solution were respectively derived from operation parameters. In addition, the effects of ultrasonic waves on the pH and the conductivity of K2HPO4 solutions are reversible.
ultrasound K2HPO4 solution pH conductivity temperature
SongQing Hu Ping Chen Jiang Zhao Wei Zhao DeSong Tang Lin Li Yi Hou
College of Light Chemistry and Food Science,South China University of Technology,Guangzhou,510640,P.R.China
国际会议
北京
英文
1-5
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）