Diffusion coefficients of aluminium chloride in aqueous solutions at 298.15, 303.15 and 315.15 K

• Published in: Electrochimica acta 2007-07, Vol.52 (23), p.6450-6455
• Main Authors: Ribeiro, Ana C.F., Valente, Artur J.M., Sobral, Abílio J.F.N., Lobo, Victor M.M., Burrows, Hugh D., Esteso, Miguel A.
• Format: Article
• Language: English
• Subjects: Aluminium chloride; Chemistry; Diffusion coefficient; Electrochemistry; Exact sciences and technology; General and physical chemistry; Molar conductivity; Properties of electrolytes: conductivity
• ISSN: 0013-4686; 1873-3859
• DOI: 10.1016/j.electacta.2007.04.041

Mutual diffusion coefficients (interdiffusion coefficients) have been determined for aluminium chloride in water at 298.15, 303.15 and 310.15 K at concentrations from 0.002 to 0.010 mol dm −3 together with molar conductivity values. The diffusion coefficients were obtained by using a conductimetric open-ended capillary cell. The experimental data were discussed on the basis of the Onsager–Fuoss model. The Nernst diffusion coefficients derived from diffusion 1.208 × 10 −9 and 1.701 × 10 −9 m 2 s −1 and from conductance 1.238 × 10 −9 and 1.692 × 10 −9 m 2 s −1, at two temperatures 298.15 and 310.15 K, respectively, agree well each other.