Table 3.

Values of adsorption isotherm constants.

Adsorption Isotherm	Constants	Materials
		Toluene	Ethyl Acetate
Langmuir	$q_m$	373.7	304.0
	${\mathrm{K}}_A$	0.0022	0.0021
	R2	0.9899	0.9890
Freundlich	${\mathrm{k}}_f$	53.18	39.83
	n	0.2245	0.2295
	R2	0.9989	0.9971
Sips	$a_m$	647.8	511.2
	$K_S$	0.0496	0.0352
	n	0.3962	0.4181
	R2	0.9998	0.9982
Toth	f	872.8	660.3
	g	1.512	1.898
	d	0.2241	0.2458
	R2	0.9997	0.9983
Redlich–Peterson	$K_R$	2.8835	1.913
	${\alpha }_R$	0.0342	0.028
	$\beta$	0.8293	0.8302
	R2	0.9999	0.9985