Experimental Observation of Phase Behavior and Turbidity in Oil–Water–Sodium Hypochlorite Ternary Systems
DOI:
https://doi.org/10.24114/ijcst.v9i1.72429Keywords:
ternary system, turbidity boundary, phase behavior, sodium hypochlorite, oil–water systemAbstract
This study experimentally examines the phase behavior of ternary mixtures composed of oil, distilled water, and sodium hypochlorite (NaOCl) solution using a turbidity (cloud-point) observation method rather than numerical liquid–liquid equilibrium calculations. Three oils—coconut oil, olive oil, and baby oil—were tested to evaluate how their physicochemical properties influence visible phase behavior. Oil and NaOCl were first mixed at different ratios, followed by the gradual addition of distilled water until turbidity appeared, marking the boundary between temporary dispersion and phase separation. The required water volume was recorded as an indicator of this boundary. Coconut oil separated rapidly into two layers, olive oil formed short-lived cloudy dispersions, and baby oil showed similar behavior with slight temperature changes, possibly due to slow interaction with hypochlorite. The results confirm that both oil type and composition ratio strongly govern observable phase behavior in oil–water–NaOCl ternary systems.References
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