Diffusion coefficients in aqueous solutions of potassium chloride at high and l...

• Author(s): Lobo, Victor M. M. ; Ribeiro, Ana C. F. ; Verissimo, Luis M. P.
• Date: 1998
• Persistent ID: http://hdl.handle.net/10316/5282
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Diffusion; Electrolytes; Aqueous Solutions; Transport Properties
• Document Type: Article
• Language: English

Description

Differential diffusion coefficients of potassium chloride in water at 298.15 K, and at concentrations from 0.001 M to 1 M, have been measured using a conductimetric cell and an automatic apparatus to follow diffusion. The results are discussed on the basis of the Robinson and Stokes, Onsager-Fuoss and Pikal models. The cell uses an open-ended capillary method and a conductimetric technique is used to follow the diffusion process by measuring the resistance of a solution inside the capillaries, at recorded times. http://www.sciencedirect.com/science/article/B6TGR-3V7KC9G-D/1/914bd73612e7dd0562487442acc910ba