Experimental study on the surface tension of magnetized water

摘要

In this paper, the variation of surface tension coefficient of water magnetized by a solenoid coil was studied by experimental measurement. It was found that the surface tension coefficient of pure water decreased after the magnetization treatment, and the decrease ratio depends on the magnetic field intensity and the treatment time exposed in the magnetic field. The maximum decrease of about 25% (from 72 mN/m of pure water to 54 mN/m) occurs at magnetic field intensity of 300 mT and treatment time of 15 min. However, the surface tension coefficient of magnetized water does not keep stable at the low value, it returns to the original value gradually in about 1 h.