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A n experimental database for the precipitation of chloride and sulfate salts associated with six cations (sodium, potassium, magnesium, calcium, barium, and strontium) from aqueous solutions was generated using isopropylamine as the precipitation agent. Consistency tests performed on the acquiredprecipitation data indicated a high level of experimental consistency. The precipitation fractions (PI of all chloride salts (at 5,000 and 10,000 mg/L) over the studied range of solvents volume ratios (V,) were approximately identical and their small variations were within their experimental uncertainty. The P of sulfate salts (1,000

A low pressure vapor-liquid equilibrium apparatus has been developed, tested and verified for the measurements of dilute solution activity coefficients for different organic solutes in aqueous systems. Activity coefficient data were measured for aqueous binary mixtures involving methanol, acetone. and benzene at 25°C. The experimental measurements targeted the range of solute liquid compositions extending from the Gas Chromatograph detection limit to 0.3 mole fraction for methanol and acetone, and to the miscibility mole fraction for benzene. Precise extrapolation to determine the infinite dilution activity coefficients (y~) was achieved. Instrumental, external and internal consistency tests performed on the acquired data indicate a good level of experimental consistency.