Measurement of Interfacial Tension between Two Immiscible Liquids

4 Measurement of Interfacial Tension (between Two Immiscible Liquids) 

IFT can be measured by different methods, depending on the characteristics of the system. The following are some of them  

Drop weight method (can also be used for high pressure and temperature) 

The Wilhelmy plate is placed at the surface of the water, and the oil phase is added until the whole plate is covered by the latter. The apparatus must be calibrated with known IFT data such as water-hexadecane (52 mN/m 25°C) (Table 2.4). 

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