Density, Speed of Sound, and Refractive Index of Aqueous Binary Mixtures of Some Glycol Ethers at T = 298.15 K

Abstract

The experimental data of densities (F), speeds of sound (u), and refractive indices (n D ) of aqueous solutions of different glycol ethers, namely, ethylene glycol iso-propyl ether (EGIPE), ethylene glycol monobutyl ether (EGMBE), diethylene glycol dimethyl ether (DEGDME), diethylene glycol monobutyl ether (DEGMBE), propylene glycol monomethyl ether (PGMME), and dipropylene glycol monomethyl ether (DPGMME), over the entire composition range, at temperature T ) 298.15 K, and at one atmospheric pressure have been obtained. The derived parameters such as the apparent molar volume (φ V ) of solute, isentropic compressibility of solution (β S ), apparent molar isentropic compressibility (φ KS ) of solute, excess molar volume (V E ) of solution, molar refraction ([R] 1,2 ), deviation in refractive index (∆n D ) of solutions, deviation in molar refraction (∆[R] 1,2 ), and the deviation in isentropic compressibility (∆β S ) have been computed. The limiting apparent molar volumes of solutes (φ V 0 ), limiting apparent molar isentropic compressibilities of solutes (φ KS 0 ), and the limiting excess partial molar volumes of solutes (V j 2 0E) have also been obtained. The results are interpreted in terms of hydrogen bonding, solute-solute, and solute-solvent interactions.

Densities of Diethylene Glycol, Monobutyl Ether, Diethylene Glycol Dibutyl Ether, and Ethylene Glycol Monobutyl Ether from (283.15 to 363.15) K at Pressures up to 60 MPa

“…The ARD from those from eq is 0.163%. Deviations between the data of Dhondge et al and Comelli et al and those from eq were not included in Figure . Larger deviations were observed between their data and those from this work (ARD = 0.244% for data from Dhondge et al, ARD = 0.479% for data from Comelli et al).…”

“…Deviations between the data of Dhondge et al and Comelli et al and those from eq were not included in Figure . Larger deviations were observed between their data and those from this work (ARD = 0.244% for data from Dhondge et al, ARD = 0.479% for data from Comelli et al).…”

“…Deviations between the data of Dhondge et al 24 and Comelli et al 28 and those from eq 1 were not included in Figure 2. Larger deviations were observed between their data and those from this work (ARD = 0.244% for data from Dhondge et al, 24 Figure 3 shows excellent agreement of our densities and those by Esteve. Burgdorf et al 30 used a hydrostatic method to measure the density of DEGDBE at 298.15 and 323.15 K at atmospheric pressure.…”

Volumetric, Ultrasonic, Spectroscopic, and Molecular Dynamics Simulations Studies of Molecular Interactions in Binary Mixtures of [Emim][NTf2] with 2-Propoxyethanol at Temperatures from 298.15 to 318.15 K

“…The IL, [Emim]­[NTf 2 ], is a colorless and highly soluble liquid in polar organic solvents and has a wide variety of applications such as an industrial solvent, in organic synthesis, and in separation and polymer technology due to its hydrophobic nature, low viscosity, and chemical stability. , However, 2-propoxyethanol (2-PE), called propyl cellosolve or ethylene glycol monopropyl ether, is an oily odorless and colorless liquid. As 2-PE has both alcoholic (−OH) and ether (−O−) parts in its structure, it has proton accepting and donating ability, which makes it possible to form intra- and intermolecular hydrogen bonds. , The chemical and physical properties exhibited by 2-propoxyethanol resulting from its self-linked-structure-like alcohols permit one to mix it with aprotic and protic solvents. The 2-propoxyethanol with aqueous solutions and the pure form used as a solvent for varnishes and inks, hydraulic fluid as a raw material for synthetic pesticides, and electrolytes. , Further, the 2-PE is completely soluble in majority of the ILs and also soluble in ether and water at all temperatures and pressures.…”

“…As 2-PE has both alcoholic (−OH) and ether (−O−) parts in its structure, it has proton accepting and donating ability, which makes it possible to form intra-and intermolecular hydrogen bonds. 24,25 The chemical and physical properties exhibited by 2-propoxyethanol resulting from its self-linked-structure-like alcohols permit one to mix it with aprotic and protic solvents. The 2propoxyethanol with aqueous solutions and the pure form used as a solvent for varnishes and inks, hydraulic fluid as a raw material for synthetic pesticides, and electrolytes.…”