1. ABOUT THE DATASET -------------------- Title: Manuscript data for publication "Structural analysis of the lyotropic phases in alpha-olefin sulfonate as a function of water content and temperature" Creator(s):Robin Winder1, Sepideh Khodaparast2, Andrew Bayly1, Ian McRobbie3, Michael Rappolt4, and David Harbottle1 1) School of Chemical and Process Engineering, University of Leeds, Leeds LS29JT, UK 2) School of Mechanical Engineering, University of Leeds, Leeds LS29JT, UK 3) Innospec Ltd, Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK 4) School of Food Science and Nutrition, University of Leeds, Leeds LS29JT, UK Rights-holder(s):Unless otherwise stated, Copyright 2026 University of Leeds Publication Year: 2026 Description: This dataset is part of the publication that analyses the lyotropic phase behaviour of the surfactant alpha olefin sulfonate as a function of water concentration and temperature. It contains the raw SAXS data and backgrounds used to create the phase map. Cite as: Winder, R., Khodaparast, S., Bayly, A., McRobbie I., Rappolt, M., and Harbottle, D. (2026) Dataset for 'Structural analysis of the lyotropic phases in alpha-olefin sulfonate as a function of water content and temperature'. University of Leeds. Manuscript data for publication "Structural analysis of the lyotropic phases in alpha-olefin sulfonate as a function of water content and temperature" https://doi.org/10.1016/j.jcis.2026.140870 Related publication:Winder, R., Khodaparast, S., Bayly, A., McRobbie I., Rappolt, M., and Harbottle, D.,'Structural analysis of the lyotropic phases in alpha-olefin sulfonate as a function of water content and temperature', Journal of Colloid and interface science Contact: D.Harbottle@leeds.ac.uk 2. TERMS OF USE --------------- Copyright 2026, University of Leeds This dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/.] 3. PROJECT AND FUNDING INFORMATION ---------------------------------- Title: EPSRC Centre for Doctoral Training in Molecules to Product - Drying of Alpha Olefin Sulphonates: Effect of drying temperature on phase transitions and particle properties Dates: April 2019 - September 2027 Funding organisation: EPSRC in collaboration with Innospec Ltd Grant no. EP/S022473/1 4. CONTENTS ----------- File listing Raw_data_phase_map.xlsx This file contains separate spreadsheets for each concentration 2-70wt%. In each spread sheet you will find the temperatures measured and the resulting 1D SAXS data, the initial data set of each page starts with 10 °C measurement points and at any point that a new phase was established a more accurate 1-2°C was then carried out and this data then follows that set. Also included are the backgrounds for each measurement consisting of an empty capillary, a capillary filled with Milli-Q water and a background with no capillary. 5. METHODS ---------- Detailed Materials and methods are available in the associated article.