Densities ρ, Speeds of sound u, isentropic compressibilities κ s , intermolecular free lengths L f , specific acoustic impedances Z, relative association R a , intermolecular attraction α, excess molar volumes VE, excess isentropic compressibilities κ s E, excess intermolecular free lengths L f E and excess specific acoustic impedances ZE of acetophenone with ethyl cyanoacetate have been report...

In this work, we report the thermodynamic and ultrasonic properties of ascorbic acid (vitamin C) in water and in presence of newly synthesized ammonium based protic ionic liquid (diethylethanolammonium propionate) as a function of concentration and temperature. Apparent molar volume and apparent molar isentropic compression, which characterize the solvation state of ascorbic acid (AA) in presen...

Molten chloride salts are ionic liquids in which the anions and cations exhibit network formation. An attractive salt system for use molten reactors is NaCl-UCl3, an liquid with complex non-ideal thermodynamic behaviour due to formation of short-range order. The relationship between local structure properties investigated this work, molecular dynamics simulations using Polarizable Ion Model (PI...

Abstract To explore the effect of ionic liquid hydrophobicity over volumetric properties, density has been determined for six these compounds in aqueous solution temperature interval (293.15–308.15) K, covering diluted region. For three binary systems, at 298.15 K pressure (0.1–95) MPa also measured. The atmospheric is used together with high data to calculate excess volumes as a function accur...

A combination of ion exchange and membrane extraction successfully recovered cadmium and cyanide from simulated cadmium-cyanide rinsewaters. The ion exchange loading was most effective at cyanidetocadmium molar ratios of 4:l or less; when the molar ratio exceeded 4:1, cadmiumcyanlde complexes caused a chromatographic displacement of free cyanide from the resin. Cyanide-to-cadmium molar ratios i...

It has been shown in the present paper that exploitation of experimental potential a photoacoustic technique can provide information on type intermolecular interactions aqueous mixtures containing organic liquids, when basic parameters these mixtures, such as density, ρ, specific heat, cp, or thermal conductivity, λ, are unknown. Earlier investigations concentration dependence effusivity differ...

Anaerobic fermentation processes for the production of a succinate-rich animal feed supplement from raw whey were investigated with batch, continuous, and variable-volume fed-batch cultures with Anaerobiospirillum succiniciproducens. The highest succinate yield, 90%, was obtained in a variable-volume fed-batch process in comparison to 80% yield in a batch cultivation mode. In continuous culture...

Stable gadolinium(III) chelates are nowadays routinely used as contrast agents for magnetic resonance imaging (MRI). Their non-covalent binding to human serum albumin (HSA) has shown to improve their efficacy. Non-covalent interactions lead to complex formation that can be quantified by several techniques that are mostly tedious and time-consuming. In this study, electrospray ionization mass sp...