Table 3: Calculated specific refractions ( ) and molar refractions ( ) of potassium salt solutions 10%, 20%, 40%, and 60% (v/v) ethanol + water (E-W) mixture at 303.15 K.


10% (v/v) E-W

0.0005790.21073.99820.0005730.21124.01920.0005710.21094.0099
0.0011230.21054.00030.0009710.20953.99930.0011160.20893.9866
0.0015960.21003.99640.0017450.20864.00290.0017300.20703.9510

20% (v/v) E-W

0.0006450.21814.40300.0006050.21664.35350.0006180.21584.3334
0.0012240.21744.42280.0012550.21474.33810.0011840.21484.3315
0.0018760.21814.47530.0018770.21434.34790.0018480.21234.3008

40% (v/v) E-W

0.0007480.22935.26540.0007330.22775.20870.0007370.22765.2002
0.0015020.22965.31970.0014530.22735.22550.0014800.22575.1844
0.0022180.22845.33330.0022410.22605.21850.0022320.22395.1649

60% (v/v) E-W

0.0009260.24396.60250.0008880.24106.50110.0009140.24166.5112
0.0018500.24386.65350.0018180.23966.49310.0018240.23946.4811
0.0027770.24346.69690.0027710.23866.50100.0027380.23596.4155

and = cm3·mol−1.