The solubilities of 11α-hydroxy-16α,17α-epoxyprogesterone in methanol, ethanol, acetone, ethyl acetate, and acetic acid were measured using an isothermal method from 283 K to 323 K. A laser monitoring observation technique was used to determine the dissolution of the solid phase in a solid + liquid mixture. The solubility of 11α-hydroxy-16α,17α-epoxyprogesterone in the above solvents increased in the order ethanol < methanol < ethyl acetate < acetone < acetic acid. The experimental solubility data was correlated with a semiempirical equation.

Using a laser monitoring observation technique, the solubilities of sodium cefotaxime (A) in binary water (B) + 2-propanol (C) solvent mixtures were determined by the synthetic method from 278.15 K to 308.15 K and in the solvent composition (x C 0 ) range from 0.025 to 1.000. The results of these measurements were correlated by the combined nearly ideal binary solvent (CNIBS)/Redlich-Kister equation. For the seven mixtures studied, the CNIBS/Redlich-Kister equation was found to provide a good correlation of the experimental data.

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The free-standing Ni–Al2O3 ensemble derived from NiAl-layered double hydroxides (NiAl-LDHs) grown onto a Ni-foam has been developed for the exothermic gas-phase acetone hydrogenation to isopropanol. This approach works effectively and efficiently to achieve a unique combination of high activity/selectivity and enhanced heat/mass transfer stemmed from the Ni-foam. The outstanding catalyst is obtained by direct reduction of the un-calcined NiAl-LDH/Ni-foam, with a high turnover frequency of 0.90 s–1, being capable of converting 90.8% acetone into isopropanol with almost 100% selectivity under stoichiometric H2/acetone molar ratio, atmospheric pressure at 80 °C, and a WHSVacetone of 10 h–1. The catalyst derivation using the un-calcined NiAl-LDH/Ni-foam enables the Ni nanoparticles to be intertwined with Al2O3 to form a large Ni–Al2O3 interface, without interruption of impurities such as irreducible NiO (in the case of calcined NiAl-LDH/Ni-foam samples), which markedly improves the strong acetone adsorption next to the Ni0 hydrogenation sites, thereby leading to a dramatic improvement of catalyst activity.

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