Effect of Light on Transport of Potassium Thiocyanate in Aqueous Solutions

• Published in: Applied Pharmaceutical Practice and Nutraceuticals pp. 181 - 190
• Main Authors: Fangaia, Sónia I. G., Nicolau, Pedro M. G., Guerra, Fernando A. D. R. A., Lobo, V. M. M., Ribeiro, Ana C. F.
• Format: Book Chapter
• Language: English
• Published: United Kingdom Apple Academic Press 2021; Apple Academic Press, Incorporated
• Edition: 1
• Subjects: Lower Tubes; Corrosion Studies; Dm −3; electrolytes; Natural Product Development; SCN Ion; KSCN Solutions; Ambient Solution; Hypochlorous Acid; Platinum Electrode; diffusion coefficient; Dental Material; Diverse Properties; solutions; Diffusion Coefficients; Human Saliva; Experimental Diffusion Coefficients; Mol Dm; Glass Tank; transport properties; KSCN; potassium thiocyanate; Oral Hygiene Products; Interdiffusion Coefficients; Diffusion Behavior; Oral Cavity; Dark Chamber; Mutual Diffusion Coefficients; SCN
• ISBN: 1771889241; 9781771889247
• DOI: 10.1201/9781003054894-12

By using a conductometric technique, diffusion coefficients have been measured for potassium thiocyanate in aqueous solutions of different concentrations at 25 °C in a dark chamber. These data are compared with the data obtained in the presence of sunlight using the same technique and with the data obtained from another research group. These data are of enormous importance in many applied areas, such as corrosion studies in the oral cavity of humans, helping to better understand the complex structure of these systems. By using a conductometric technique, diffusion coefficients have been measured for potassium thiocyanate in aqueous solutions of different concentrations at 25°C in a dark chamber. Among the electrolytes in human saliva, potassium thiocyanate (KSCN) has been widely studied because of its diverse properties, such as antioxidant ones, protecting cells against oxidizing agents, for example, hypochlorous acid, making it a potentially useful therapeutic agent. Thus, due to thiocyanate’s diverse properties, it has driven us to characterize the transport of the salts in solutions with and without light. Diffusion coefficients were measured for aqueous solutions of KSCN in absence of light and comparing with those obtained in the presence of light, providing transport data necessary to model the diffusion for various chemical and pharmaceutical applications. Experimental diffusion coefficients for KSCN solutions when obtained under different conditions, that is, in the presence and absence of light revealed significant deviations among them.