An examination of the solution phase and nucleation properties of sodium, potassium and rubidium dodecyl sulphates

摘要: The nucleation of sodium, rubidium and potassium dodecyl sulphates are examined using temperature programmed milli-scale batch crystallisation experiments optical turbidometry detection. As sodium sulphate (SDS) crystallises as a hydrated system from aqueous solution, studies have also been carried out in the presence citrate, which causes anhydrous phase to crystallise. meta-stable zone widths (MSZW) solution properties (the enthalpies entropies dissolution) well reaction orders, measured. dissolution decreases with decrease cooling/heating rate whilst increases for all systems, resulting width decreasing change rate. increased increasing alkali metal ionic radii. Very large values MSZW citrate containing solutions occur. Extremely high orders occur SDS, at concentrations when pure low citrate.