Ion Valency and Concentration Effect on the Structural and Thermodynamic Properties of Brine–Decane Interfaces with Anionic Surfactant (SDS)

2021 ◽  
Vol 125 (33) ◽  
pp. 9610-9620
Author(s):  
Yiling Nan ◽  
Wenhui Li ◽  
Zhehui Jin
Keyword(s):  
Thermodynamic Properties ◽  
Anionic Surfactant ◽  
Concentration Effect

Studies on the Effect of Anionic Surfactant on the Microemulsion System Containing [60]Fullerene

2016 ◽  
Vol 32 (1-2) ◽  
pp. 21
Author(s):  
Vaishali Suthar ◽  
C. N. Murthy
Keyword(s):  
Thermodynamic Properties ◽  
Anionic Surfactant ◽  
Reverse Micelle ◽  
Water Quantity ◽  
Microemulsion System ◽  
Fullerene Solution ◽  
Potential Applications ◽  
Significant Change

Fullerenes have potential applications in the form of microemulsion systems. Microemulsion studies with various alcohols as co-surfactants reveals that as the co-surfactant was changed from propanol to octanol, the water quantity in the microemulsion was less when [60]fullerene was present in the oil. The microemulsion region increases when [ 60]fullerene is present along with co-surfactants like propanol, butanol and pentanol and decreases when hexanol and octanol were present. The thermodynamic properties (ΔG°, ΔH° and ΔS°) of reverse micellisation of SDS in toluene-[60]fullerene solution at 30ºC and 40ºC were calculated and the results show that though there is no significant change in the overall ΔG°, there was significant decrease in the enthalpic interactions with a corresponding increase in the entropy for reverse micellization in toluene. The values of ΔG°, ΔH° and ΔS° are negative indicating the spontaneous and exothermic formation of a reverse micelle.

scholarly journals Synthesis, characterization, physical and thermodynamic properties of a novel anionic surfactant derived from Sapindus laurifolius

RSC Advances ◽  
2018 ◽  
Vol 8 (43) ◽  
pp. 24485-24499 ◽  
Author(s):  
Neha Saxena ◽  
Nilanjan Pal ◽  
Keka Ojha ◽  
Swapan Dey ◽  
Ajay Mandal
Keyword(s):  
Thermodynamic Properties ◽  
Anionic Surfactant ◽  
Potential Application

The present study deals with the synthesis, characterization, physical and thermodynamic properties of a novel anionic surfactant derived from Sapindus laurifolius for its potential application against conventional non-biodegradable surfactants.

Models of Thermodynamic Properties of Prominences

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey
Keyword(s):  
Thermodynamic Properties ◽  
Mass Transport ◽  
Emission Spectrum ◽  
Thermodynamic Parameters ◽  
Working Group ◽  
Physical Processes ◽  
Theoretical Concepts ◽  
Group 3 ◽  
Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

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