A New Method for Measuring the Density of Melt——Differential Neck Method

By means of the differential neck method, not only the effect of surface tension on the measurement of density can be solved completely, but the surface tension and density of melt can be simultaneously obtained in one experiment. A formula of this method is given. It is proved to be very correct by applying this method to water-alcohol solution and glycerol. The satisfactory result of the density of melt at higher temperature has been obtained.