Table 3. Kinetic Constants of Adsorption.

no	concentration (mol L–1)	k1	k2	qe cal	R2	SSE	SAE	χ2	Δq
Pseudo-First Order Equation 6
1	100	0.1298		25.647	0.8324	72.751	270.318	1274.101	81.3383
2	75	0.1364		24.944	0.9048	75.014	276.173	1213.522	83.8687
3	50	0.1502		24.567	0.9467	84.774	308.472	1241.545	94.7802
Pseudo-Second Order Equation 7
1	100		0.00023	78.740	0.9967	0.573	2.245	0.028	0.6403
2	75		0.00020	86.206	0.9978	0.608	1.869	0.023	0.6803
3	50		0.00020	86.956	0.9998	0.275	0.986	0.004	0.3071