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Modification of the Two-Point Scaling Theory for the Description of the Phase Transition in Solution. Analysis of Sodium Octanoate Aqueous Solutions.

Piekarski H, Wasiak M, Wojtczak L - J Solution Chem (2012)

Bottom Line: The results obtained indicate that the micellization process is subject to the scaling laws.The results were compared with those for other systems.ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10953-012-9795-6) contains supplementary material, which is available to authorized users.

View Article: PubMed Central - PubMed

ABSTRACT
On the basis of conventional scaling theory, the two-point scaling theory was modified in order to describe the influence of composition on the partial molar heat capacity and volume during the micellization process. To verify the theory, isobaric heat capacities and densities of aqueous sodium octanoate solutions were measured over wide composition and temperature ranges and the modified approach was used to analyze the calculated partial molar heat capacities and volumes of the surfactant in water. The results obtained indicate that the micellization process is subject to the scaling laws. The results were compared with those for other systems. Peculiar behavior of the critical indices was observed and correlated with the structure of the micelles. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10953-012-9795-6) contains supplementary material, which is available to authorized users.

No MeSH data available.


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Influence of composition on the apparent molar volumes of sodium octanoate in aqueous solution at 293.15 K
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Fig7: Influence of composition on the apparent molar volumes of sodium octanoate in aqueous solution at 293.15 K

Mentions: The values of the apparent molar volumes of sodium octanoate in aqueous solution, as a function of molality at 293.15 K, are shown in Fig. 7. Fig. 7


Modification of the Two-Point Scaling Theory for the Description of the Phase Transition in Solution. Analysis of Sodium Octanoate Aqueous Solutions.

Piekarski H, Wasiak M, Wojtczak L - J Solution Chem (2012)

Influence of composition on the apparent molar volumes of sodium octanoate in aqueous solution at 293.15 K
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3298654&req=5

Fig7: Influence of composition on the apparent molar volumes of sodium octanoate in aqueous solution at 293.15 K
Mentions: The values of the apparent molar volumes of sodium octanoate in aqueous solution, as a function of molality at 293.15 K, are shown in Fig. 7. Fig. 7

Bottom Line: The results obtained indicate that the micellization process is subject to the scaling laws.The results were compared with those for other systems.ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10953-012-9795-6) contains supplementary material, which is available to authorized users.

View Article: PubMed Central - PubMed

ABSTRACT
On the basis of conventional scaling theory, the two-point scaling theory was modified in order to describe the influence of composition on the partial molar heat capacity and volume during the micellization process. To verify the theory, isobaric heat capacities and densities of aqueous sodium octanoate solutions were measured over wide composition and temperature ranges and the modified approach was used to analyze the calculated partial molar heat capacities and volumes of the surfactant in water. The results obtained indicate that the micellization process is subject to the scaling laws. The results were compared with those for other systems. Peculiar behavior of the critical indices was observed and correlated with the structure of the micelles. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10953-012-9795-6) contains supplementary material, which is available to authorized users.

No MeSH data available.


Related in: MedlinePlus