Surface tension measurement of oil/refrigerant mixture by maximum bubble pressure method

2017 ◽  
Vol 73 ◽  
pp. 125-133 ◽  
Author(s):  
Mitsuhiro Fukuta ◽  
Junki Sumiyama ◽  
Masaaki Motozawa ◽  
Tadashi Yanagisawa
Keyword(s):  
Surface Tension ◽  
Surface Tension Measurement ◽  
Maximum Bubble Pressure ◽  
Maximum Bubble Pressure Method ◽  
Pressure Method ◽  
Refrigerant Mixture ◽  
Bubble Pressure

Surface tension and density of the molten PbCl2–KCl–NaCl ternary system

1985 ◽  
Vol 63 (5) ◽  
pp. 1132-1138 ◽  
Author(s):  
T. Fujisawa ◽  
T. Utigard ◽  
J. M. Toguri
Keyword(s):  
Surface Tension ◽  
Ternary System ◽  
Surface Tensions ◽  
Maximum Bubble Pressure ◽  
Maximum Bubble Pressure Method ◽  
Temperature Range ◽  
Molar Ratios ◽  
Pressure Method ◽  
Bubble Pressure ◽  
Increasing Temperature

The maximum bubble pressure method was used to determine the surface tension and density of melts within the PbCl2–KCl–NaCl system. The temperature range of this study was from 450 to 800 °C. In all cases, the surface tension was found to decrease with increasing temperature. At constant molar ratios of KCl to NaCl, a minimum in the surface tension was observed at approximately 40 mol% PbCl2. The ternary surface tension values were found to obey the simple additivity expression of the binary surface tensions of PbCl2–KCl and PbCl2–NaCl. Based on these findings, constant surface tension contours have been drawn.The density obtained in the present study agree well with the previously determined densities using a bottom-balance Archimedean technique reported by this laboratory.

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