TY - CONF A1 - Kabelitz, Anke A1 - Emmerling, Franziska T1 - Time-resolved WAXS studies on the formation and dissolution of polynuclear aluminium sulfates N2 - Polynuclear aluminium species (Al13) find application in different areas like water purification, contaminant transport, and as pilling clays with high specific surface areas, due to their strong binding ability to aggregates and high positive charge. In the present contribution, we report on the in situ investigation of the Al13 sulfate synthesis and dissolution by synchrotron wide-angle X-ray scattering (WAXS). Al13 sulfates were crystallized by precipitating hydrolyzed aluminum solutions by the addition of sodium sulfate. Dissolution of the formed Al13 species was carried out by adding hydrochloric acid. The measurements were performed using a custom-made acoustic levitator as sample holder. The study provides information about the intermediates during the crystallization and dissolution processes. From the data, a mechanism was derived indicating the influence of the crystallization process. T2 - MS&T 2016: 3rd International Workshop of In-situ Studies with Photons, Neutrons and Electrons Scattering CY - Salt Lake City, USA DA - 24.10.2016 KW - WAXS KW - Aluminium sulfate KW - Time-resolved PY - 2016 AN - OPUS4-38173 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -