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1.281 Aktuelle Fachpublikationen zum Thema temperature

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Determination and Correlation of the Solubility for Berberine Chloride in Pure Imidazolium-Based Ionic Liquids

27.04.2016 | Li Ge; Anxian Bao; Kedi Yang, Journal of Chemical & Engineering Data, 2016

The solubility of berberine chloride in several imidazolium-based ionic liquids (ILs), that is, [Rmim]BF4, [Rmim]NO3, [Rmim]PF6, and [Rmim]NTf2 (R = butyl, hexyl, and octyl), were measured using a laser monitoring observation method from 299.45 to 364.35 K at atmospheric pressure. The solubility ...

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Activity Coefficients at Infinite Dilution of Organic Solutes and Water in Tributylethylphosphonium Diethylphosphate Using Gas–Liquid Chromatography: Thermodynamic Properties of Mixtures Containing Ionic Liquids

27.04.2016 | Marta Królikowska; Marcin Orawiec, Journal of Chemical & Engineering Data, 2016

In this work, new set of experimental activity coefficients at infinite dilution, γ13∞ for 51 various organic solutes such as alkanes, 1-alkenes, 1-alkynes, cycloalkanes, aromatic hydrocarbons, alcohols, thiophene, ethers, ketones, acetonitrile, pyridine, 1-nitropropane, and water in ...

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Solubilities of Dihydroxylammonium 5,5′-Bistetrazole-1,1′-diolate in Various Pure Solvents at Temperatures between 293.15 and 323.15 K

27.04.2016 | Chunyuan Zhang; Shaohua Jin; Shusen Chen; Yan Zhang; Liang Qin; Xiaochun Wei; Qinghai Shu, Journal of Chemical & Engineering Data, 2016

The solubility of newly insensitive energetic material dihydroxylammonium 5,5′-bis(tetrazole)-1,1′-diolate (TKX-50) was measured in ethyl acetate, ethanol, deionized water, dimethyl fumarate (DMF), formic acid, toluene, and dimethyl sulfoxide (DMSO) between 293.15 and 323.15 K at atmospheric ...

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Densities and Viscosities of Polyhydroxy Solutes in Aqueous Tetraethylammonium Bromide Solutions at Different Temperatures

26.04.2016 | Parampaul K. Banipal; Sonika Arti; Tarlok S. Banipal, Journal of Chemical & Engineering Data, 2016

Infinite-dilution standard partial molar volumes, V2°, and the Jones–Dole viscosity B-coefficients of some saccharides and their polyols, (−)-d-arabinose, (+)-d-arabitol, (+)-d-xylose, xylitol, (−)-l-sorbose, d-sorbitol, (+)-d-galactose, galactitol, (+)-d-glucose, and (+)-d-maltose monohydrate, ...

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A Systematic Study of the Effects of Metal Chloride Additives on H2 Desorption Properties of Ammonia Borane

22.04.2016 | Yuki Nakagawa; Tengfei Zhang; Masaumi Kitamura; Shigehito Isobe; Satoshi Hino; Naoyuki Hashimoto; Somei Ohnuki, Journal of Chemical & Engineering Data, 2016

The effects of metal-based additives in a wide range of elements doping into ammonia borane (AB) were systematically investigated. Pure transition metals in period 4 and total of 17 metal chlorides were selected as additives and ball-milled with AB. Metal chloride additives were effective to ...

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Gibbs Energy of Formation of Eu3O4 and EuO

22.04.2016 | Kallarackel T. Jacob; Arneet Rajput, Journal of Chemical & Engineering Data, 2016

Thermodynamic data for Eu3O4 are not available in standard compilations. However, data for EuO and Eu2O3 are available. Data for Eu2O3 in the compilations are in agreement while those for EuO differ significantly. Two solid–state electrochemical cells incorporating yttria–doped thoria as the ...

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Hexafluorosilicate Salts in Wet Phosphoric Acid Processes: Properties of X2SiF6–H2O with X = Na+, K+, or NH4+ in Aqueous Solutions at 353.15 K

21.04.2016 | Mohamed El Guendouzi; Mourad Skafi; Ahmed Rifai, Journal of Chemical & Engineering Data, 2016

During the production of phosphoric acid in wet processes, the acid and salts of fluorosilicates are formed in turn by inducing the problem of fouling. The knowledge of the physical–chemical properties of hexafluorosilicates allows a better understanding of process governing complex equilibria in ...

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Viscosities of Some Saccharides in Aqueous Solutions of Phosphate-Based Inorganic Salts

21.04.2016 | Parampaul K. Banipal; Neha Aggarwal; Tarlok S. Banipal, Journal of Chemical & Engineering Data, 2016

The viscosities η of some monosaccharides, their methyl- and deoxy- derivatives, disaccharides, and trisaccharides have been measured in (0.25, 0.5, 1.0, and 1.25) mol·kg–1 aqueous solutions of potassium phosphate (KH2PO4) and (0.5, 1.0, 1.5, and 2.0) mol·kg–1 aqueous solutions of sodium ...

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Thermodynamic Equilibrium of Aqueous Two-Phase Systems Composed of [C4mim]BF4 + MgCl2/Na2WO4 + H2O at Different Temperatures

21.04.2016 | Tingting Wang; Dan Zhang; Yunfeng Cai; Juan Han; Qian Liu; Yun Wang, Journal of Chemical & Engineering Data, 2016

Binodal data for the 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim]BF4) + salt (MgCl2/Na2WO4) + H2O systems were experimentally determined at T = (288.15, 298.15, and 308.15) K, respectively. The binodal data were successfully correlated by an empirical equation with four parameters. The ...

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Effect of Carbon Chain Length of Organic Salts on the Thermodynamic Stability of Methane Hydrate

20.04.2016 | Yuan Su; Stefano Bernardi; Debra J. Searles; Liguang Wang, Journal of Chemical & Engineering Data, 2016

This study presents the phase equilibrium conditions for methane hydrate with one of the following organic ammonium salts differing in carbon chain length: tetramethylammonium bromide (TMAB), tetraethylammonium bromide (TEAB), tetrapropylammonium bromide (TPrAB), tetrabutylammonium bromide ...

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