Tartrazine Removal from Aqueous Solution by HDTMA-Br-Modified Colombian Bentonite

Table 4

Points for the validation of the experimental design.

Adsorbent (mg)	Dye concentration (mg/L)	Decolorization (%)		Error (%)
		Experimental	Calculated
27	47.39	44.68 ± 0.34	42.64	4.79
40	43.74	69.15 ± 0.50	70.78	2.31
36	34.58	92.73 ± 0.14	88.93	4.27