Investigation on molecular interaction of glycols in methanol solutions of methylparaben (methyl 4 – hydroxybenzoate) at different temperatures through thermo-acoustical analysis

Thakur, Ashima; Juglan, K.C.; Kumar, Harsh; Κaur, Kirandeep

doi:10.1016/j.molliq.2019.111014

Cited by 39 publications

(15 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is used for producing unsaturated polyester resins, coffee-based drinks, soda, whipped dairy products, ice cream, and liquid sweeteners. 3 , 4 HG is also a colorless and viscous compound with a typical sweet odor that is miscible with most of the common organic solvents. It is used in varnishing, printing ink, lacquers, pesticide formulation, automobile, textiles, chemical, and pharmaceutical industries.…”

Section: Introductionmentioning

confidence: 99%

Study of Thermodynamic and Acoustic Properties of Niacin in Aqueous Hexylene Glycol and Propylene Glycol at Different Temperatures

2020

Self Cite

View full text Add to dashboard Cite

The densities and speed of sound for liquid mixtures containing vitamin B 3 (niacin) at 0.01, 0.03, and 0.05 mol·kg –1 concentrations in aqueous propylene glycol and hexylene glycol at the variation of temperatures from 293.15 to 308.15 K have been measured using an Anton Paar DSA 5000 M. From volumetric experimental data, apparent molar volume ( V ϕ ), partial molar volume ( V ϕ 0 ), and partial molar volume of transfer (Δ V ϕ 0 ) are calculated along with the apparent molar isentropic compression ( K ϕ, S ), partial molar isentropic compression ( K ϕ, S 0 ), and partial molar isentropic compression of transfer (Δ K ϕ 0 ) using experimental acoustic data. The positive volumetric data (i.e., apparent molar volume and partial molar volume) indicates strong solute–solvent interactions inside the mixture. Along with these values, the empirical constants a , b , and c with the pair and triplet coefficients ( V AB , V ABB , K AB , K ABB ) are also calculated.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of Thermodynamic and Acoustic Properties of Niacin in Aqueous Hexylene Glycol and Propylene Glycol at Different Temperatures

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Moreover, at high concentrations, water molecules around poly(ethylene glycol)s are more compressible than at lower concentrations, which results due to dehydration of poly-(ethylene glycol)s between niacin molecules. 44 The negative values of S K * confirm the existence of solute−solvent interactions at infinite dilution in the liquid mixture. 45…”

Section: Methodsmentioning

confidence: 77%

Volumetric and Ultrasonic Studies of Molecular Interactions of PEG 400 and PEG 4000 in Aqueous Niacin Solutions at Different Temperatures

2021

Self Cite

View full text Add to dashboard Cite

At multiple temperatures, 288.15–318.15 K, the density and speed of sound values for PEGs of molecular weights 400 and 4000 in aqueous niacin solutions were measured at concentrations of 0.07, 0.08, and 0.09 mol·kg–1. Utilizing these experimental data, the apparent molar properties and partial molar properties were determined to analyze the interactions in aqueous niacin solutions with poly(ethylene glycol)s (400/4000). The volumetric parameters, such as apparent molar volume, V ϕ, partial molar volume, V ϕ 0, and partial molar volume of transfer, ΔV ϕ 0, are obtained using experimental density values, while the acoustic parameters, i.e., apparent molar isentropic compression, K ϕ,S, partial molar isentropic compression, K ϕ,S 0, and partial molar isentropic compression of transfer, ΔK ϕ,S 0, are determined with the speed of sound data. These positive volumetric apparent and partial molar properties suggest the presence of strong solute–solvent interactions. The partial molar expansibilities (E ϕ 0) along with their first derivative (∂E ϕ 0/∂T)P were calculated. Further, pair and triplet coefficients are obtained using partial molar isentropic compression and partial molar volume of the transfer, respectively.

show abstract

“…In Table 2 the decrease in the adiabatic compressibility, which indicates the bond strength among molecules [14] and variation is shown in Figure 2. The Variation of the Wada constant depicts the space between the solute and solvent molecules [15,16]. Table 3 and Figure 3 Represent the values and variation of Wada constant with molality and concentration.…”

Section: Resultsmentioning

confidence: 99%

Study of Molecular interactions of glycols with D-Mannitol at different temperature

kaur

Patnaik

Kumar

2022

J. Phys.: Conf. Ser.

Self Cite

View full text Add to dashboard Cite

The density and speed of sound for glycols (EG, DEG, and TEG) in an aqueous solution of D-Mannitol have been measured by Anton Paar DSA 5000M at different temperatures and concentrations. Experimentally obtained data of density and speed of sound are employed to calculate various theoretical parameters such as intermolecular free length, acoustic impedance, adiabatic compressibility, Wada’s constant, Rao’s Constant, and Vander Waal’s constant which gave the better insight into molecular interactions between the glycols and D-mannitol solutions. The linear trend for all the parameters implies the absence of complex formation in the system.

show abstract

Investigation on molecular interaction of glycols in methanol solutions of methylparaben (methyl 4 – hydroxybenzoate) at different temperatures through thermo-acoustical analysis

Cited by 39 publications

References 68 publications

Study of Thermodynamic and Acoustic Properties of Niacin in Aqueous Hexylene Glycol and Propylene Glycol at Different Temperatures

Study of Thermodynamic and Acoustic Properties of Niacin in Aqueous Hexylene Glycol and Propylene Glycol at Different Temperatures

Volumetric and Ultrasonic Studies of Molecular Interactions of PEG 400 and PEG 4000 in Aqueous Niacin Solutions at Different Temperatures

Study of Molecular interactions of glycols with D-Mannitol at different temperature

Contact Info

Product

Resources

About