Measured pH 1.42 4.35 6.36 7.35 8.51 8.57
Measured solubility 1.6353 1.619 1.6273 1.7277 1.599 2.2871
Re-calculated solubility (Mat-pKa) 1.6371# 1.6190# 1.6190# 1.6190# 1.6190# 1.6190*
Results highlighted with # indicate values in the range ±10%; Results highlighted with * indicate values in the range ±100%; Results highlighted in italics indicate measured values over the maximum possible (indicating their increases of concentration during the experimental process)
Table 14: Experimental and re-calculated solubilities of the chemical substance in 80% of CH3CN co-solvent