In this paper, the chemical exergy of the anolyte in the copper–chlorine water splitting cycle of hydrogen production is analyzed for relevant speciation. The speciation refers to the anolyte composition in terms of concentration of various ionic and neutral species at thermodynamic equilibrium...

In this study we demonstrate the kinetics of Cu2+ reduction in concentrated cupric chloride solutions. Experiments were carried out near the boiling point of the solution ([NaCl] = 280 g/l and [Cu2+] = 1–40 g/l) at T = 90 °C, atmospheric pressure, pH = 2. Electrochemical methods such as cathod...

Outokumpu HydroCopper™ technology was developed by Outokumpu Research. It is a novel copper production method based on the efficient leaching properties of cupric chloride solutions. The leaching is operated at atmospheric pressure, near the boiling point of water in a stirred reactor and the pH...

The exacting technology of piezoelectric aroma sensor has engendered a great hope for determining the ripening aroma of mango (Mangifera indica L.). 3-Carene is one of the most important ripeness indicating aromas of mango. Detection of 3-Carene content in mango is very important because fruit a...

Isobaric vapor-liquid equilibrium (VLE) data have been measured in a modified Ellis still for the following binary systems: camphene + p-cymene, camphene + α-pinene, (+)-3-carene + α-pinene, α-pinene + (-)-β-caryophyllene, and camphene + (-)-β-caryophyllene, at 101.33 kPa. The pressure was ...

New experimental vapor–liquid equilibrium (VLE) data for three binary systems composed of p-cymene + (−)-β-caryophyllene, 3-carene + (−)-β-caryophyllene, and 3-carene + p-cymene and for the ternary system of (−)-β-caryophyllene + p-cymene + 3-carene were obtained using a modified Ellis equil...

The catalytic properties of acid-modified montmorillonite, kaolinite (Mongolia) and illite (Belarus) clays, as well as a commercial aluminosilicate catalyst AS-36 were studied in the liquid-phase isomerization of α-pinene and 3-carene. The largest conversion of α-pinene (100% after 6 h) was ob...

Isomerization of 3-carene to the reaction mixture, containing 2-carene and its further utilization in the synthesis of chiral isobenzofurans, was investigated in the presence of acid-modified clays at 140 °C. The catalysts were characterized by XRF, FTIR with pyridine and nitrogen adsorption. Q...

Several lines of evidence suggest that selective sigma-2 (σ2) ligands might be useful for the treatment of solid tumors. However, very few selective σ2 ligands have been identified. This study was aimed at identifying new selective σ2 receptor ligands using a previously identified agent, SYA ...

Novel tricyanovinyl dyes derived from hydrazones have been prepared by the reaction of tetracyanoethylene and phenylethylidene hydrazone, and these dyes showed absorption in the region of 500 nm. The dyes showed pronounced solvatochromic effects as the solvent's polarity increased. Some of ...

Both diastereoisomers of 1-phenylethylidene acetals (acetophenone acetals) of methyl and benzyl β-l-arabinopyranoside and α-l-rhamnopyranoside were prepared. Acetal-exchange reactions gave only the endo-phenyl isomers; their 2-O- and 4-O-acetyl derivatives were isomerised into the exo-phenyl c...

NLRP3 inflammasome is a key component of the inflammatory process and its dysregulation contributes to IBD for its ability to induce IL-1β release. Previously, we reported that a novel small molecular activator of Nrf2, 3-(2-oxo-2-phenylethylidene)-2,3,6,7-tetrahydro-1H-pyrazino-[2,1-a]isoquino...

The title molecular salt, (E)-2-(1-phenylethylidene) hydrazinecarboximidamide nitrate hemimethanol C9H13N4+·NO3-·0.5CH4O, was synthesized and characterized by elemental analysis, FT-IR and NMT spectroscopies, and single-crystal X-ray diffraction technique. Quantum chemical calculations were pe...

ABSTRACTUsing the water eliminated mechanism, reactions of 4-pyridinecarboxylic acid hydrazide and salicylaldehyde, benzaldehyde, cinnamaldehyde, and formaldehyde afforded the corresponding N4[(E)-1-(2-hydroxyphenyl) methylidene] (NHPM), N4-[(E)-2-phenylethylidene] (NPI), N4[(E,2E)-3-phenyl-2-pr...

A series of 4-hydroxy-N′-[1-phenylethylidene]-2H/2-methyl, 1,2-benzothiazine-3-carbohydrazide 1,1-dioxides was synthesized from commercially available sodium saccharin. Base catalyzed ring expansion of methyl (1,1-dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)acetate followed by ultrasound mediated...

Four metal complexes with the general formula [M (L)2(H2O)x] (where M = Cu(II), Ni(II), Zn(II) or Co(II); L = (E)-N−-(1-phenylethylidene)nicotinohydrazide and x = 0 or 2) have been synthesized and characterized using elemental analyses, spectral analyses (IR, UV–vis, MS, 1H-NMR), thermal analys...

Three series of 4-hydroxy-N′-[benzylidene/1-phenylethylidene]-2-H/methyl/benzyl-1,2-benzothiazine-3-carbohydrazide 1,1-dioxides (9–11)a-l were synthesized and unraveled to be highly potent dual inhibitors of monoamine oxidases (MAO-A and MAO-B). All the examined compounds demonstrated IC50 val...

The interaction of N′-[(1E)-1-phenylethylidene]isonicotinohydrazide (PHeH) with trivalent Pr, Nd, Gd, Tb, and Ho ions was studied with spectroscopic and potentiometric techniques. Photoluminescence studies of Tb3 + and PHeH in ethanol and in solid Tb3 +-PHeH complex reveal that PHeH has no sens...

Peptic ulcer is prevalent in about 4% of the world population and nearly 10% of people have been affected by peptic ulcer at some point in their life. Therefore, there is a need for newer efficient and safe anti-ulcer agents. In the present strategy, we have prepared a novel bioactive glass cont...

Hydrophobic BaSO4 nanoparticles were successfully produced via a one-step process through precipitation reaction in aqueous solution of BaCl2 and (NH4)2SO4 with octadecyl dihydrogen phosphate (n-C18H37OPO3H2, ODP) as a modifying agent. The ODP was used to control the BaSO4 particle size and to m...