Abstract:

This data set includes pendant drop interfacial tension, volume, and surface area measurements using a Kruss DSA 100 tensiometer. Measurements were conducted to gain a more complete understanding of the dispersant, Corexit 9500, behavior at oil-water interfaces. Specifically, the dynamic interfacial tension was measured for stagnant and oscillatory pendant drops in both fresh water and salt water systems with Corexit 9500 concentrations varying from 0 wt% to 10 wt% of the aqueous phase. This provides insight into the adsorption rates and dilational rheology of Corexit 9500 stabilized interfaces.

Suggested Citation:

Kristin Powell, Anuj Chauhan. 2016. Dataset for: Dynamic Interfacial Tension and Dilational Rheology of Dispersant Corexit 9500. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7QF8QWS

Publications:

Powell, K. C., & Chauhan, A. (2016). Dynamic interfacial tension and dilational rheology of dispersant Corexit 9500. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 497, 352–361. doi:10.1016/j.colsurfa.2016.03.009

Purpose:

The effectiveness of a dispersant depends on its ability to adsorb to an interface to reduce interfacial tension and stabilize emulsion droplets. Therefore, we explore the dynamics and effect of Corexit 9500 adsorption to oil-water interfaces via pendant drop tensiometry.

Data Parameters and Units:

Time is reported in [h:m:s]. All interfacial tensions are reported in [mN/m]. All drop volumes are reported in [microliters]. All drop surface areas are reported in [sq. mm]. Drop Base Diameter is reported in [mm]. The angle theta is reported in [degrees]. Fit error is reported in [micrometers]. Corexit surfactant (%). Worksheets are labeled based on Corexit percentage and oscillation (for example 0.1% 400 is 0.1% Corexit and oscillation 400).

Individual Files: