Interfacial tensions of n-hexane with aqueous solutions of sodium dodecyl sulfonate in equilibrium with dimethyl ether at elevated pressures

Jho, C; King, A. D.

doi:10.1016/0021-9797(81)90087-4

Cited by 3 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This agrees very well with observations made by earlier investigators (Harvey, 1958;Jho and King, 1981;Michaels and Hauser, 1951) that pressure does not appreciably affect the liquidliquid interfacial tensions (even over a much larger pressure range). This agrees very well with observations made by earlier investigators (Harvey, 1958;Jho and King, 1981;Michaels and Hauser, 1951) that pressure does not appreciably affect the liquidliquid interfacial tensions (even over a much larger pressure range).…”

Section: Interfacial Tensionssupporting

confidence: 93%

See 1 more Smart Citation

Surface tensions and contact angles due to lignin sulphonates in the system: Liquid sulphur, aqueous zinc sulphate and zinc sulphide

1992

View full text Add to dashboard Cite

Surface tension and contact angle measurements were made in the liquid sulphur-aqueous zinc sulphate-zinc sulphide system at superatmospheric pressures, and showed that, in the absence of surfactants, the liquid sulphur-aqueous solution interfacial tension was 54.0 & 1 .O mN/m, falling to 27.0-30.0 mN/m when 0.3 g/L or more of lignin sulphonate was added to the solution. At the same time, the contact angle between liquid sulphur and the same solution increased from 80 5 5" to 148 & 5 " . As a result, the work of adhesion between liquid sulphur and zinc sulphide falls from 63.7 mJ/m2 to about 5.3 mJ/m*. The results indicate that adsorption of lignin sulphonate occurs on both the mineralaqueous and the sulphur-aqueous interfaces. On a effectut des mesures de tension de surface et d'angle de contact dans un systkme soufre liquid-sulfate de zinc aqueux-sulfure de zinc, B des pressures super-atmospheriques et on montre qu'en I'absence de surfactants, la tension interfaciale du soufre liquide avec la solution aqueuse est de 54,O & 1 ,O mN/m, tombant a 27, 0-30.0 mN/m lorsqu'on ajoute 0.3 g/L de sulfonate de lignine B la so!ution. En meme temps, l'angle de contact entre le soufre liquide et la mCme solution augmente de 80 f 5" 21 148 & 5 " . Par consequent, le travail d'adhbsion entre le soufre liquide et le sulfure de zinc tombe de 63,7 mJ/m2 B environ 5,3 mT/m2. Les risultats indiquent que I'adsorption du sulfonate de lignine survient dans les deux interfaces miniral-aqueux et soufre-aqueux.Keywords: sulphur, zinc sulphide, Iignosolllignin sulphonate, interfacial tension, contact angle, work of adhesion.he zinc pressure leach technology has certain potential

show abstract

Section: Interfacial Tensionssupporting

confidence: 93%

“…From the literature, (Andreas et al, 1938;Matijevic, 1969;Adamson, 1967;Jho and King, 1981;Michaels and Hauser, 1951) the method of pendant drops has a number of outstanding advantages over other methods for surface tension measurements. One of these is that the method is static.…”

Section: Surface Tensionsmentioning

confidence: 99%