Table 1 Theoretical and actual synthesized compositions of hydrotalcites used in this study

100 meq/100 g

[M^II _1-xM^III _x * (OH)₂]A^n-

[Mg²⁺ _.94Al³⁺ _.06(OH)₂]Cl^- _.06

200 meq/100 g

[M^II _1-xM^III _x * (OH)₂]A^n-

[Mg²⁺ _.88Al³⁺ _.12(OH)₂]Cl^- _.12

300 meq/100 g

[M^II _1-xM^III _x * (OH)₂]A^n-

[Mg²⁺ _.82Al³⁺ _.18(OH)₂]Cl^- _.18

400 meq/100 g

[M^II _1-xM^III _x * (OH)₂]A^n-

[Mg²⁺ _.77Al³⁺ _.23(OH)₂]Cl^- _.23

500 meq/100 g

[M^II _1-xM^III _x * (OH)₂]A^n-

[Mg²⁺ _.71Al³⁺ _.29(OH)₂]Cl^- _.29