Volumetric and Viscometric Properties of Binary Liquid Mixtures of Ethylene Glycol Monomethyl Ether + 1-Hexanol, 1-Octanol, and 1-Decanol at Temperatures of T = (293.15, 298.15, 303.15, and 308.15) K

Abstract

Density, viscosity, and speed of sound have been measured for the binary mixtures of ethylene glycol monomethyl ether (CH3OCH2CH2OH) with 1-hexanol (C6H14O), 1-octanol (C8H18O), and 1-decanol (C10H22O) at temperatures of T = (293.15, 298.15, 303.15, and 308.15) K and at a pressure of 0.1 MPa as a function of composition. The experimental density, ρ, values were used to calculate the excess molar volumes, V m E. The isentropic compressibilities, κS, have also been calculated with experimental densities and speeds of sound data. The values of V m E were fitted to the Redlich−Kister polynomial equation and have been used to discuss the presence of significant interactions between polyether and alcohol molecules.

Density, Speed of Sound, Viscosity, Excess Properties, and Prigogine–Flory–Patterson (PFP) Theory of Binary Mixtures of Amine and Alcohols

“…The uncertainty in the mole fraction was found to be u r ( x 1 ) = 1 × 10 –4 . Densities and speeds of sound in pure liquids of diisopropylamine and alcohols and their binary liquid mixtures at different temperatures were measured simultaneously and automatically, using an Anton Paar DSA 5000 (oscillating U-tube density and speed of sound analyzer) instrument with a working frequency for the speed of sound of 3 MHz. The precision in density and speed of sound measurements are 1 × 10 –3 kg·m –3 and 1 × 10 –2 m·s –1 , respectively.…”

“…The repeatability in density, speed of sound, and viscosity measurements is found to be 5 × 10 –4 kg·m –3 , 2 m·s –1 , and 4 × 10 –2 mPa·s, respectively, and the standard uncertainty in density and speed of sound measurements is found to be u (ρ) = 0.25 kg·m –3 and u ( u ) = 5.0 m·s –1 . The kinematic viscosity ( v = η/ρ) was measured using an Ubbelohde suspended-level viscometer . The relative standard uncertainty in the viscosity measurements has been found to be u r (η) = 1.5%.…”

Thermodynamics of mixing for binary mixtures of 1-octanol and 1-decanol with n-dodecane and ternary mixture of (TBP+1-octanol+dodecane) at T=(298.15 to 323.15)K

“…For the density value, the agreement is better than 0.01% and for the sound velocity the agreement is around 0.07%. The experimental values of density and sound speed of the pure components at different temperatures, along with literature values [10][11][12][13][14][15], are tabulated in table 2. It is seen that barring a few values, where the deviation is slightly higher, the agreement between the experimental and literature values are approximately within 0.1%.…”

Investigation on Temperature-Dependent Volumetric and Acoustical Properties of Homologous Series of Glycols in Aqueous Sorbitol Solutions

“…The liquid mixtures containing glycols are extensively used in the cosmetic, pharmaceutical, biotechnological, and food industries. − Ethylene glycols are the liquids which are miscible in water in the whole composition range, and due to their hygroscopic nature, are highly soluble in polar solvent owning H-bonding. − These glycols are broadly used in the plastic industry where they are used in the preparation of polyethylene terephthalate which is used further to make plastic bottles for the pharmaceutical and food industry. − Ethylene glycols (EGs) are solvents possessing oxy and hydroxyl groups in the same molecule due to which the formation of inter- and intramolecular hydrogen bonds between −O– and −OH groups has been observed . A considerable amount of work has already been published on densities and speeds of sound of EGs with water, ethers, alcohols, and amides, − but to best of our knowledge no data is available on the study of thermodynamic properties of glycols with sugar alcohols.…”

“…It is often used as a substitute to sugar in various diet foods (including soft drinks and ice cream), cough syrups, mints, and sugar-free chewing gum. − To store these diet foods, various containers are used from the plastic industry where EGs play a major role; therefore, it is also important to study the interaction of sorbitol with EGs. Despite numerous applications of mixtures containing sorbital, much less work has been done on their thermodynamic study. − Also thermo-acoustical properties of glycols have been studied with water, alcohols, amides, and ethers, − but so far to best of our knowledge no data are available on densities and speeds of sound of mixtures of sorbitol and ethylene glycols. In the present study, we carry out a systematic study on the volumetric and acoustical properties of ethylene glycol (EG), diethylene glycol (DEG), and triethylene glycol (TEG) in aqueous sorbitol solutions at different temperatures T = (288.15, 298.15, 308.15, 318.15) K and the experimental pressure of 0.1 MPa.…”