Sarlak, MohammadMcCue, AlanTanino, Yukie2025-02-052025-02-052025-04Sarlak, M, McCue, A & Tanino, Y 2025, 'Laboratory data on the interfacial tension, viscosity, and density of two naphthenic acids in n-hexadecane across varying temperatures and concentrations', Data in brief, vol. 59, 111322. https://doi.org/10.1016/j.dib.2025.1113222352-3409ORCID: /0000-0002-5766-0515/work/177759137ORCID: /0000-0002-4404-6102/work/177759273https://hdl.handle.net/2164/24999This work contains material supported by Premier Corex (UK) LTD through a PhD studentship for MS. Any opinions, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of Corex (UK) LTD. All data were acquired in the Premier Corex laboratory in Aberdeen, UK. The authors gratefully acknowledge Jules Reed (Premier Corex) for insightful suggestions and comments during the planning and development of this work. The authors thank the two anonymous reviewers for their comments.8475095enginterfacial propertiesthermophysical propertiespendant drop methodstearic acidcyclohexanepentanoic acidQD ChemistryQDJournal article10.1016/j.dib.2025.11132259