Removal of Indigo Carmine Dye from Aqueous Solution Using Magnesium Hydroxide as an Adsorbent

Table 2

(a) General data applicable to different isotherms (pH 6-7). (b) General data applicable to different isotherms (pH 12-13).

(a)

0.1616	0.0221	−0.7915	−1.6556	−1.8226	−3.8122	45.249	7.3122	0.86405
0.1067	0.03583	−0.9712	−1.4458	−2.2377	−3.329	27.909	2.9779	0.4739
0.09146	0.0396	−1.0388	−1.4023	−2.3919	−3.229	25.253	2.3096	0.36354
0.0793	0.0427	−1.10073	−1.3696	−2.535	−3.1536	23.419	1.8571	0.26884
0.0762	0.0435	−1.11805	−1.3615	−2.5744	−3.1349	22.99	1.7517	0.24346

(b)

0.1739	0.0190	−0.7597	−1.7207	−1.7493	−3.9633	52.5624	9.1406	0.96097
0.1486	0.0254	−0.8281	−1.5960	−1.9065	−3.6730	39.4477	5.8619	0.76804
0.1413	0.0272	−0.8498	−1.5658	−1.9569	−3.6045	36.7985	5.1996	0.715969
0.1232	0.0317	−0.9094	−1.4989	−2.0939	−3.4514	31.5457	3.8864	0.58955
0.1123	0.0344	−0.9495	−1.4631	−2.1866	−3.3697	29.0487	3.2622	0.51351

The correlation coefficients for the different isotherm models and the equations used to calculate the / values.