Relation between surface tension and dielectric constant

Holmes, Curtis F.

doi:10.1021/ja00785a004

Cited by 24 publications

(21 citation statements)

References 3 publications

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“…Following Vitoz et al (1998), solid-gas interfacial tension will be assumed constant where pH changes are caused by hydrochloric acid or sodium hydroxide solution. A correlation exists between surface tension and dielectric permittivity (Holmes, 1973). Therefore, if surface tension is assumed constant, dielectric permittivity will also be constant and so will the number density of ions in solution, in view of the dependence of dielectric permittivity on ionic concentration (Stogryn, 1971).…”

Section: Derivation Of Ph Dependent Solid-liquid Interfacial Tension mentioning

confidence: 99%

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Amadu¹,

Miadonye²

2019

IJC

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The solid-liquid interfacial tension is a fundamental parameter in areas of wettability pertaining to adhesive bonds and petroleum engineering practice. In wettability issues related to surface functionalized polymeric materials design to achieve specific adhesive properties, the solid-liquid interfacial tension can be pH dependent due to amphoteric behavior. In this paper, we have used the theory of pH dependent surface charging and the 2-pk model as well as the site binding model of the electric double layer theory to derive a pH dependent solid-liquid interfacial tension equation. Following the fundamental relationship between solid-liquid interfacial tension and contact angle in light of Young’s equation, we have extended the theoretical basis of the derivation. Consequently, we have also derived a pH dependent cosine of the thermodynamic contact angle. Both equations give satisfactory explanations for observed experimental data available in the literature.

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Section: Derivation Of Ph Dependent Solid-liquid Interfacial Tension mentioning

confidence: 99%

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Amadu¹,

Miadonye²

2019

IJC

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“…This is likely to have arisen from a change to the dielectric properties of the EC caused by the added salt. 23 For this composite, the additional droplets are undesirable; hence, we produced a new batch of particles by reducing HMDS/particle ratio from 0.4 to 0.16 via a process of very careful tuning that is not unusual in bijel fabrication. 5 Reducing the amount of silane coupling agent counter-balances the effect of the added salt, and Figure 2(d-f) shows a series of "clean" bijels arrested by the new batch of particles.…”

Section: Introductionmentioning

confidence: 99%

Direct transformation of bijels into bicontinuous composite electrolytes using a pre-mix containing lithium salt

et al. 2018

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“…On the basis of a previous study, a relationship between surface tension and dielectric constant has been reported but only for nonpolar liquids. 17 An ideal system to study the aforementioned correlation is an atmospheric particle, containing water, salt, and surface active organic matter (OM). The activation of this particle to form a cloud condensation nucleus (CCN) and later a cloud droplet in the atmosphere depends on water content and particle size, whereas for the role of the surface active OM there is still considerable controversy.…”

Section: ■ Introductionmentioning

confidence: 99%

Correlation between Surface Tension and the Bulk Dynamics in Salty Atmospheric Aquatic Droplets

2016

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The properties of the liquid–gas interface in the presence of surface-active organic matter, and the bulk response to changes of the resulting surface tension are key factors in assessing cloud microphysics or condensation/evaporation dynamics for atmospheric particles. A fundamental question rises on how we can induce changes in the bulk of an aquatic droplet by varying its surface-activity. The challenging aspect of answering such a question rises from the fact that water exerts complexity in its interactions giving rise to many anomalous properties. Here, we employ molecular dynamics simulations on salty aquatic droplets, associated with new particle formation in the atmosphere. We present a correlation between surface tension and a bulk property like the static dielectric constant, which is closely related to the water activity in Köhler theory of droplet formation and growth. We thus correlate surface to bulk properties. The particles we probe consist of water, salt (ammonium bisulfate), and surface-active organic matter. A particularly useful result of our study is that surface-active organic matter on the surface of a salty droplet can alter the solvent properties of water in terms of water orientation/water activity measured by the static dielectric constant in the bulk.

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Relation between surface tension and dielectric constant

Cited by 24 publications

References 3 publications

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Direct transformation of bijels into bicontinuous composite electrolytes using a pre-mix containing lithium salt

Correlation between Surface Tension and the Bulk Dynamics in Salty Atmospheric Aquatic Droplets

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