Refractive Indices of Lithium, Magnesium, and Copper(II) Sulfates in Ethanol−Water Solutions

Urréjola, S.; Sánchez, Ángel; Hervello, Martín F.

doi:10.1021/je900266h

Cited by 23 publications

(9 citation statements)

References 24 publications

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“…To investigate the dependence of the zeta potential on the pH of the dispersion obtained in ethyl alcohol, the as-prepared colloids with the concentration of 200 mg L –1 diluted 20 times with distilled water were used. A 20-fold dilution with water (this corresponds to ∼4 wt % of ethyl alcohol in water) allowed using the characteristics (dielectric constant, refractive index, and viscosity) of water for the liquid to determine the zeta potential within the error limits − as well as to compare the obtained data with that previously reported. To exclude the particle oxidation in diluted suspensions, the zeta potential measurements were carried out within the first hour, starting from water addition (see Supporting Information, Figure S9).…”

Section: Experimental Methodsmentioning

confidence: 99%

Chemical and Morphological Evolution of Copper Nanoparticles Obtained by Pulsed Laser Ablation in Liquid

et al. 2019

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Pulsed laser ablation in liquid (PLAL) is a promising method to prepare copper/copper oxide nanoparticles (NPs), with the liquid used being an important factor to control their properties. The roles of the species dissolved in the liquid in the course of NP formation during the PLAL as well as the effects of organic solvents in the stabilization of the colloids obtained remain a debate. The peculiarities of the formation and alteration of the particles in ethyl alcohol as well as the effect of low amounts of oxidizing and acid–base species on the composition, structure, morphology, and stability of the NPs in the water colloids are examined. The observed high resistance of Cu NPs toward deep oxidation in ethyl alcohol suspension is shown to be connected with a competitive adsorption mechanism rather than the formation of the carbon shell. Pulsed laser ablation (PLA) of copper in distilled water yields cubic Cu2O NPs, while low amounts of NaOH and H2O2 species change the transformation route of copper NPs in the colloids formed. In the case of H2O2, the primary formation of the sheetlike and flowerlike Cu(OH)2 particles occurs in the course of PLA followed by their pseudomorphous transformation into CuO particles during the suspension aging. The presence of NaOH yields leaflike CuO mesostructures via the tetrahydroxocuprate anion mechanism. On the basis of the results obtained, the schemes for the formation of the particles are proposed.

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Section: Experimental Methodsmentioning

confidence: 99%

Chemical and Morphological Evolution of Copper Nanoparticles Obtained by Pulsed Laser Ablation in Liquid

et al. 2019

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“… a Lin et al b Urréjola et al c Orge et al d Mutalik et al e Papanastaslou and Ziogas f Papanastaslou et al Standard uncertainties u are u ( T ) = 0.03 K, u ( p ) = 0.01 MPa, u ( n D ) = 2 × 10 –5 . …”

Section: Methodsmentioning

confidence: 99%

Sucrose Solubility in Binary Liquid Mixtures Formed by Water–Methanol, Water–Ethanol, and Methanol–Ethanol at 303 and 313 K

et al. 2016

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This work presents a study of solid–liquid equilibrium of sucrose in three different binary liquid mixtures, methanol–ethanol, methanol–water, and ethanol–water for the temperatures of 303 and 313 K covering the whole composition range of the binary liquid solution. The data are presented as a function of the dielectric constant of the binary liquid mixture taking into account the self-association of water and alcohol. From a dissolution phenomenon standpoint, it seems that the temperature is more important than the dielectric constant of the binary liquid solution for the solubility mechanism. For each temperature, it was observed that the sucrose solubility is directly proportional to the dielectric constant of the binary liquid mixture.

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“…Stable phase equilibria for the ternary system (LiCl + Li 2 SO 4 + H 2 O) and its binary subsystems have been investigated over the temperature range from (273.15 to 373.15) K. − However, many of the thermodynamic properties relevant to the system are still not sufficient. The temperature of the Salt Lake region in summer is about (288.15 to 308.15) K. In the present work, in order to better separate and purify the lithium-containing resource from salt-lake brine, the isothermal solubility, solution density, refractive index, and pH of the ternary system (LiCl + Li 2 SO 4 + H 2 O) at T = (288.15 and 308.15) K were studied, and the solubilities were predicted using the Pitzer–Harvie–Weare model.…”

Section: Introductionmentioning

confidence: 99%

Phase Equilibria in the Ternary System (LiCl + Li₂SO₄ + H₂O) at T = (288.15 and 308.15) K: Experimental Determination and Model Simulation

et al. 2016

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The solubilities and physicochemical properties, including density, refractive index, and pH, of the ternary system (LiCl + Li2SO4 + H2O) at T = (288.15 and 308.15) K and p = 0.1 MPa were determined with the isothermal dissolution equilibrium method. The phase diagram in the ternary system at 288.15 K consists of one invariant point, two univariant solubility curves, and two crystallization regions corresponding to Li2SO4·H2O and LiCl·H2O. A similar structure can be found in this system at 308.15 K. This ternary system belongs to hydrate type I at two temperatures, and neither double salts nor solid solutions were formed at the investigated temperatures. The crystallized area of LiCl·H2O decreases with increasing temperature, while that of Li2SO4·H2O increases obviously. The solution density, refractive index, and pH value of the ternary system (LiCl + Li2SO4 + H2O) at the two temperatures change regularly with the mass fraction of lithium. The Pitzer–Harvie–Weare thermodynamic model of aqueous electrolyte solutions was chosen to simulate the solubility of (LiCl + Li2SO4 + H2O) at (288.15 and 308.15) K. Reasonable agreement between the predicted solubilities and experimental data was found.

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Refractive Indices of Lithium, Magnesium, and Copper(II) Sulfates in Ethanol−Water Solutions

Cited by 23 publications

References 24 publications

Chemical and Morphological Evolution of Copper Nanoparticles Obtained by Pulsed Laser Ablation in Liquid

Chemical and Morphological Evolution of Copper Nanoparticles Obtained by Pulsed Laser Ablation in Liquid

Sucrose Solubility in Binary Liquid Mixtures Formed by Water–Methanol, Water–Ethanol, and Methanol–Ethanol at 303 and 313 K

Phase Equilibria in the Ternary System (LiCl + Li₂SO₄ + H₂O) at T = (288.15 and 308.15) K: Experimental Determination and Model Simulation

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Refractive Indices of Lithium, Magnesium, and Copper(II) Sulfates in Ethanol−Water Solutions

Cited by 23 publications

References 24 publications

Chemical and Morphological Evolution of Copper Nanoparticles Obtained by Pulsed Laser Ablation in Liquid

Chemical and Morphological Evolution of Copper Nanoparticles Obtained by Pulsed Laser Ablation in Liquid

Sucrose Solubility in Binary Liquid Mixtures Formed by Water–Methanol, Water–Ethanol, and Methanol–Ethanol at 303 and 313 K

Phase Equilibria in the Ternary System (LiCl + Li2SO4 + H2O) at T = (288.15 and 308.15) K: Experimental Determination and Model Simulation

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Phase Equilibria in the Ternary System (LiCl + Li₂SO₄ + H₂O) at T = (288.15 and 308.15) K: Experimental Determination and Model Simulation