Off-critical wetting layer divergence at the liquid/vapor interface of binary liquid mixtures was written by Williamson, J. Charles;Weatherford, Emily E.;DenBeste, Makayla M.;Riley, K. Caroline;Yee, Estella F.;Rogers, Sawyer T.;Tibbetts, Clara A.. And the article was included in Journal of Chemical Physics in 2022.Application In Synthesis of 1,2-Propanediol This article mentions the following:
Surface wetting phenomena impact chem., physics, biol., and engineering. The wetting behaviors of partially miscible binary liquid systems are especially complex. Here, we report evidence of universal behavior in the divergence of wetting layer growth at liquid-vapor interfaces of the cyclohexane + aniline, hexane + o-toluidine, and methanol + carbon disulfide systems. Layer growth on the micron scale was followed using visible light scattering from stirred samples. The layer thicknesses were found to diverge with decreasing temperature when coexistence was approached from the one-phase region, but only for solutions richer in the higher d./higher surface tension component. The onset of divergence was <1 K above the bulk coexistence temperature; nearer the critical composition, the onset temperature was the critical temperature itself. All three systems showed identical divergent wetting properties after variable normalization. In contrast, no divergent wetting layer formation was seen in the benzene + 1,2-propanediol or water + phenol systems. The math. sign of the Hamaker constant correlates with the contrasting behaviors. Collectively, these results have implications for theor. descriptions of adsorption layer growth and crossover behavior, for measurements of complete wetting temperatures, and for practical applications. (c) 2022 American Institute of Physics. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Application In Synthesis of 1,2-Propanediol).
1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Application In Synthesis of 1,2-Propanediol
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts