Table 1: Values of static dielectric constant ( ) and relaxation time (τ) of aniline + 2-butoxyethanol binary mixtures at 298.15 K.

% AnilineAniline + 2-BEo-CA + 2-BEm-CA + 2-BEo-A + 2-BEm-A + 2-BE

Static dielectric constant ( )
0%9.99 (4)9.99 (4)09.99 (4)9.99 (4)9.99 (4)
25%9.09 (1)9.45 (5)10.43 (7)9.37 (4)9.78 (1)
50%8.30 (6)8.98 (7)11.05 (3)8.02 (4)9.57 (1)
75%7.48 (2)8.16 (3)11.96 (8)5.94 (4)9.36 (3)
100%6.59 (1)7.78 (4)12.94 (6)4.45 (4)9.21 (4)

Dielectric constant at optical frequency ( )
0%1.719 (2)1.719 (2)1.719 (2)1.719 (2)1.719 (2)
25%2.196 (2)2.299 (3)2.342 (1)2.323 (4)2.325 (1)
50%2.469 (1)2.364 (2)2.506 (4)2.414 (4)2.421 (1)
75%2.742 (1)2.512 (1)2.747 (3)2.502 (4)2.635 (3)
100%2.826 (1)2.814 (1)3.043 (1)2.652 (4)2.794 (2)

Relaxation time ( ) ps
0%47.86 (9)47.86 (9)47.86 (9)47.86 (9)47.86 (9)
25%40.12 (7)42.54 (6)48.36 (9)38.36 (11)63.78 (13)
50%28.12 (4)37.35 (3)48.89 (6)28.87 (6)89.08 (7)
75%21.25 (6)30.49 (4)49.78 (5)19.38 (7)101.12 (11)
100%16.20 (8)24.22 (8)50.89 (7)10.45 (8)124.27 (15)

The number in bracket represents error in least significant digit of the corresponding value as obtained by the least squares fit method; for example, 9.99 (1) means .