Measurement of the Surface Tension of Santowax 'R', Para-, Meta-and Ortho-terphenyl, Diphenyl, Diphenyl ether and Dowtherm 'A'

摘要

Values of surface tension were obtained over the temperature range from near the melting point to near the normal boiling point of each substance. A capillary rise method was used employing a closed glass U-tube apparatus. The accuracy was± 3％ near the melting point falling to ± 5％° near the normal boiling point.nValues of the parachor calculated from the experimental data were in excellent agreement with those calculated from the molecular structure using the method proposed by Sugden.