A New Method for Measuring the Density of Melt——Differential Neck Method
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摘要: 運用變頸法解決密度測量過程中的表面張力影響問題,并且在一次測量中同時獲得密度和表面張力兩個重要的物理化學參數。文中首先推導出變頸法的計算公式,然后通過對乙醇水溶液以及丙三醇兩個體系的測量,驗證了本方法的正確性。對較高熔體密度的測量也取得了滿意的結果。Abstract: 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.
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Key words:
- differential neck method /
- density /
- surface tension /
- melt
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