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. 2020 Mar 24;8:208. doi: 10.3389/fchem.2020.00208

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Copyright © 2020 Fernández-Stefanuto, Somoza, Corchero, Tojo and Soto.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Dynamic interfacial tension between aqueous solutions of the surfactants (concentration is twice the cmc) and crude oil. • Na [ONS] , $▴$ [C₁Pyr] [ONS] , $\times$ [C₁C₆Im] [ONS] , $▾$ [C₂Py] [ONS] , $♦$ [C₄Py] [ONS].