The standard reaction Gibbs energy of the cation exchange reaction of the biionic (Mg,Na)-form of montmorillonite
Apstrakt
The aim of this paper is to contribute to the knowledge of the quantitative formulation of the ion exchange reaction in clays. The equilibrium was studied at 11 degrees C in a system of solutions of NaCl and MgCl2, the concentrations of which never exceeded 0.1 mol/dm(3), and the "Jelenkovac" montmorillonite, the particle size of which was below 2 mu m. The standard reaction Gibbs energy of the Mg-Na exchange determined by applying the Gapon equation (Delta(r)G(Mg)(0Na) = 11.9 kJ/mol) and that obtained according to Levy-Shainberg (Delta(r)G(Mg)(0Na) = 10.5 kJ/mol) showed a large degree of concordance. The latter method also includes the exchangeable ion activity coefficient obtained from ion-clay interaction data which includes data on the thickness of the intel layer space in the montmorillonite structure, as well as the thickness of the basis montmorillonite layer itself.
Ključne reči:
standard reaction Gibbs energy / montmorillonite / clays / cation exchange reactionIzvor:
Journal of the Serbian Chemical Society, 1999, 64, 3, 207-213Izdavač:
- Srpsko hemijsko društvo, Beograd
Institucija/grupa
Institut za ispitivanje materijalaTY - JOUR AU - Radojević, Zagorka AU - Kostić-Gvozdenović, L. AU - Tecilazic-Stevanović, M PY - 1999 UR - http://rims.institutims.rs/handle/123456789/14 AB - The aim of this paper is to contribute to the knowledge of the quantitative formulation of the ion exchange reaction in clays. The equilibrium was studied at 11 degrees C in a system of solutions of NaCl and MgCl2, the concentrations of which never exceeded 0.1 mol/dm(3), and the "Jelenkovac" montmorillonite, the particle size of which was below 2 mu m. The standard reaction Gibbs energy of the Mg-Na exchange determined by applying the Gapon equation (Delta(r)G(Mg)(0Na) = 11.9 kJ/mol) and that obtained according to Levy-Shainberg (Delta(r)G(Mg)(0Na) = 10.5 kJ/mol) showed a large degree of concordance. The latter method also includes the exchangeable ion activity coefficient obtained from ion-clay interaction data which includes data on the thickness of the intel layer space in the montmorillonite structure, as well as the thickness of the basis montmorillonite layer itself. PB - Srpsko hemijsko društvo, Beograd T2 - Journal of the Serbian Chemical Society T1 - The standard reaction Gibbs energy of the cation exchange reaction of the biionic (Mg,Na)-form of montmorillonite EP - 213 IS - 3 SP - 207 VL - 64 UR - https://hdl.handle.net/21.15107/rcub_rims_14 ER -
@article{ author = "Radojević, Zagorka and Kostić-Gvozdenović, L. and Tecilazic-Stevanović, M", year = "1999", abstract = "The aim of this paper is to contribute to the knowledge of the quantitative formulation of the ion exchange reaction in clays. The equilibrium was studied at 11 degrees C in a system of solutions of NaCl and MgCl2, the concentrations of which never exceeded 0.1 mol/dm(3), and the "Jelenkovac" montmorillonite, the particle size of which was below 2 mu m. The standard reaction Gibbs energy of the Mg-Na exchange determined by applying the Gapon equation (Delta(r)G(Mg)(0Na) = 11.9 kJ/mol) and that obtained according to Levy-Shainberg (Delta(r)G(Mg)(0Na) = 10.5 kJ/mol) showed a large degree of concordance. The latter method also includes the exchangeable ion activity coefficient obtained from ion-clay interaction data which includes data on the thickness of the intel layer space in the montmorillonite structure, as well as the thickness of the basis montmorillonite layer itself.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "Journal of the Serbian Chemical Society", title = "The standard reaction Gibbs energy of the cation exchange reaction of the biionic (Mg,Na)-form of montmorillonite", pages = "213-207", number = "3", volume = "64", url = "https://hdl.handle.net/21.15107/rcub_rims_14" }
Radojević, Z., Kostić-Gvozdenović, L.,& Tecilazic-Stevanović, M.. (1999). The standard reaction Gibbs energy of the cation exchange reaction of the biionic (Mg,Na)-form of montmorillonite. in Journal of the Serbian Chemical Society Srpsko hemijsko društvo, Beograd., 64(3), 207-213. https://hdl.handle.net/21.15107/rcub_rims_14
Radojević Z, Kostić-Gvozdenović L, Tecilazic-Stevanović M. The standard reaction Gibbs energy of the cation exchange reaction of the biionic (Mg,Na)-form of montmorillonite. in Journal of the Serbian Chemical Society. 1999;64(3):207-213. https://hdl.handle.net/21.15107/rcub_rims_14 .
Radojević, Zagorka, Kostić-Gvozdenović, L., Tecilazic-Stevanović, M, "The standard reaction Gibbs energy of the cation exchange reaction of the biionic (Mg,Na)-form of montmorillonite" in Journal of the Serbian Chemical Society, 64, no. 3 (1999):207-213, https://hdl.handle.net/21.15107/rcub_rims_14 .