Studies on liquid–liquid interactions of some ternary mixtures by density, viscosity and ultrasonic speed measurements

Umadevi, M.; Kesavasamy, R.; Rathina, K.; Mahalakshmi, R.

doi:10.1016/j.molliq.2016.03.085

Cited by 14 publications

(5 citation statements)

References 20 publications

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“…Ultrasonic velocity dispersion in the system that causes dispersion should contain information about the relaxation time τ. Due to the structural relaxation process of relaxation time 10-12 s, it is said that it would molecules rearranged due to the co-operative process [16][17][18].…”

Section: Resultsmentioning

confidence: 99%

Acoustical properties of molecular interactions in 1-propanol, 1-butanol and 1-pentanol with tetrahydrofuran in cyclohexanone at various temperatures

Ubagaramary¹,

Enoch²,

Mullainathan³

et al. 2018

biomedicalresearch

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Section: Resultsmentioning

confidence: 99%

Acoustical properties of molecular interactions in 1-propanol, 1-butanol and 1-pentanol with tetrahydrofuran in cyclohexanone at various temperatures

Ubagaramary¹,

Enoch²,

Mullainathan³

et al. 2018

biomedicalresearch

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“…In general terms, an adequate agreement with previously published data is observed. For each alcohol should be found a few collection of poor quality an anomalous trend in density ([91] for methanol; [102] for ethanol; [78,95,102,111] for propan-1-ol; [95,111,121] for butan-1-ol; [109] for 2-methyl-propan-1-ol and for 2methyl-propan-2-ol; [112,144] for pentan-1-ol) and in ultrasonic velocity ( [95,98] Wilhoit and Zwolinski, 1973), (, Lange, 1973), (▲, Weast, 1974), ( ,--, Hales and Ellender, 1976), (,-• -, Diaz-Peña and Tardajos, 1979), (, Won et al, 1981), (,•••, Ortega, 1982), (,-• -, Rauf et al, 1983), ( , Munster et al, 1984), ( ,--, Riddick et al, 1986), (, --, Garcia, 1991), (, DIPPR, 2000), (,-• • -, Pereira et al, 2003), , (▼,--, Gonzalez et al, 2006b), ( , Vercher et al, 2007), (,•••, Kannappan et al, 2009), , ( , Kurnia et al, 2011), (▲, Singh et al, 2013), (▼,--, Elangovan and Mullainathan, 2014), (,--, Nabi et al, 2016). Ortega, 1982), (,-• -, Rauf et al, 1983), (,--, Garcia, 1991) [lez et al, 2006b), (, Goenaga et al, 2007), (,…”

Section: Comparison With Open Literature Datamentioning

confidence: 99%

“…In general terms, an adequate agreement with previously published data is observed. For each alcohol should be found a few collection of poor quality an anomalous trend in density ( [91] for methanol; [102] for ethanol; [78,95,102,111] for propan-1-ol; [95,111,121] for butan-1-ol; [109] for 2-methyl-propan-1-ol and for 2methyl-propan-2-ol; [112,144] for pentan-1-ol) and in ultrasonic velocity ( [95,98] for methanol; [78] for butan-1-ol; [109;124] for butan-2-ol; [109] for 2-methylpropan-1-ol; [109] for 2-methyl-propan-2-ol). Wilhoit and Zwolinski, 1973), (, Lange, 1973), (▲, Weast, 1974), ( ,--, Hales and Ellender, 1976), (,-• -, Diaz-Peña and Tardajos, 1979), (, Won et al, 1981), (,•••, Ortega, 1982), (,-• -, Rauf et al, 1983), ( , Munster et al, 1984) , ( ,--, Riddick et al, 1986), (, --, Garcia, 1991) Sakurai et al, 1988), (▲, Park et al, 1994), (,--, Aminabhavi and Gopalakrishna, 1995), (, DIPPR, 2000), ( , Tu et al, 2001), (, Gonzalez et al, 2002), (,-• • -, Aralaguppi and Baragi, 2006), (, Gonzalez et al, 2006a), (,•••, Gonzalez et al, 2006c),…”

Section: Comparison With Open Literature Datamentioning

confidence: 99%

Modelling and experimental thermodynamic data of hydroxylic compounds (C1-C6) as a function of temperature

Andrade

González

Xavier

et al. 2020

International Journal of Thermodynamics

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Alcohols have a long history of several uses worldwide. Because of their relatively low toxicity compared with other many chemical compounds and ability to dissolve non-polar substances, alcohols can be found into beverages for adults, used as combustion engine fuel, as excipient in medical drugs, as component into personal-care products and in many scientific and industrial applications. One of the key problems of the chemical industry is the lack of available physical properties data for equipment industrial design and improvement of theoretical models for simulation. The present work deals with the modelling and experimental measurement (density and ultrasonic velocity) of thermophysical properties of short chain hydroxylic compounds (C1-C6), making a contribution with quality data to the available thermodynamic databases. Fitting equations were applied to the experimental data in order to correlate for later computer based design. Different derived magnitudes were computed from the experimentally measured density and ultrasonic velocity, due to their importance for theoretical calculations and development of new models. The estimation of the studied properties was made by the application of different theoretical procedures. A wide comparison was made with available open literature, being evident the lack of reliable information in the ranges studied until now.

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“…In materials, field sound speed measurements can be used for the estimation of mechanical properties like the elastic parameters, corrosion, or mechanical failures [6,7], as well as for determining the thermal properties, such as conductivity. For liquid mixtures, mainly binary and ternary, this technique has been extensively applied with the aim to measure the physico-chemical properties [8][9][10]. The correlation of the experimental sound speed values with the corresponding prediction by semiempirical formulas such as Nomoto's or ideal mixing relations allows for studying the nature of molecular interactions.…”

Section: Introductionmentioning

confidence: 99%

Reaction Monitoring by Ultrasounds in a Pseudohomogeneous Medium: Triglyceride Ethanolysis for Biodiesel Production

2021

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The sound propagation speed measurement us is used for monitoring triglyceride ethanolysis in a broad range of reaction conditions (mainly, temperature: 23–50 °C; ethanol/oil: from 6 to 24 mol/mol). Experimentally, us slightly increased with the reaction time in all cases as a result of the contribution of its dynamic mixture components. Nomoto’s expression for homogeneous mixtures offered suitable us estimation but with values notably higher than the experimental ones due to the resistance to sound propagation offered by the ethanol/oil interphase (non-homogeneous medium). Our strategy was based on both the comparison of the experimental us values and the theoretical ones correlated by means of triglyceride conversion and on the estimation of the sound speed of oil/ethanol that could emulate the resistance offered by the interphase. The evolution of the reactions was predicted quite well for all the experiments carried out with very different reaction rates. Nevertheless, at the beginning of the reaction, the estimated conversion (outside of industrial interests) showed important deviations. The presence of the intermediate reaction products, diglycerides, and monoglycerides could be responsible for those deviations.

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Studies on liquid–liquid interactions of some ternary mixtures by density, viscosity and ultrasonic speed measurements

Cited by 14 publications

References 20 publications

Acoustical properties of molecular interactions in 1-propanol, 1-butanol and 1-pentanol with tetrahydrofuran in cyclohexanone at various temperatures

Acoustical properties of molecular interactions in 1-propanol, 1-butanol and 1-pentanol with tetrahydrofuran in cyclohexanone at various temperatures

Modelling and experimental thermodynamic data of hydroxylic compounds (C1-C6) as a function of temperature

Reaction Monitoring by Ultrasounds in a Pseudohomogeneous Medium: Triglyceride Ethanolysis for Biodiesel Production

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