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Found 14 articles for "Department of Chemistry"
Gallstones disease, or cholelithiasis, is a prevalent condition worldwide, with significant morbidity and mortality, particularly in regions like Al-Maghreb. This study investigates the unusual occurrence of gallstones in newborns in Missan city, aim...
The title compounds, substituted 1H-benzo[f]chromen-3-yl-2H-chromen-2-ones, were synthesized via a one-pot reaction involving 3-aryl-1-(3-coumarinyl)propen-1-ones and 2-naphthol, catalyzed by DBU and concentrated H2SO4. The resulting products were ob...
The behavior on heating of gamma irradiated L-, D- isomers and DL- racemic mixture of serine was investigated by means of differential scanning calorimetry (DSC). The results were compared with similar ones already obtained by us for the same non-irr...
Ultrasonic velocities, densities, and viscosities have been measured in binary liquid mixtures of quinoline with mesitylene over the entire mole fraction range of quinoline at temperatures T=(303.15, 308.15, 313.15, and 318.15)K. From the experimenta...
DFT-B3LYP calculations have been performed on Mesembrine, Mesembrenone, Mesembrenol, and Tortuosamine, using the G03 program with complete optimization of geometries. Quantum parameters and thermodynamic Gibbs function were used to investigate the ef...
Conductance measurement has found a wide range of applications in the chemical industries. One of such measurements involves titration of strong electrolyte and weak electrolyte. Conductance measurement of strong electrolyte (Sodium chloride, NaCl) a...
Water treatment using aluminum sulphate is a common process in water purification, primarily aimed at removing unwanted microorganisms. These inorganic coagulants are partially hydrolyzed salts, and their dissolution in water is highly pH-dependent. ...
PbO was explored as a highly efficient, simple, cheap, and recyclable catalyst for the fast synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives via a one-pot three-component reaction of phthalhydrazide, aromatic aldehyde, and malononitr...
The study investigates the application of silica nanoparticles synthesized through Stöber's mechanism to enhance the adsorption capacity in pre-concentrating pesticide residues in environmental water samples. These nanoparticles, characterized by SE...
Thermo excess acoustical parameters, including excess internal pressure (πE), excess enthalpy (HE), and excess free volume (VfE), have been derived from experimentally measured densities (ρ), ultrasonic velocities (u), and viscosities (η) in binar...
In this study, the residue levels of three pesticides—captan, methidathion, and parathion-methyl—used in agricultural spraying were examined in apple samples harvested during the 2014 season and stored in cold storage depots in Karaman province. ...
Unexpected 2-(2-hydroxyphenyl)-3-(2-(2-hydroxyphenyl)-4-oxothiazolidin-3-yl)alkyl(phenyl)thiazolidin-4-one derivatives (4a-d) were synthesized via the reaction of 3-acetyl chromene with hydrazine hydrate, ethylene diamine, 1,6-diaminohexane, or p-phe...
We report the synthesis and investigation of new biologically active derivatives of dihydropyrimidines, specifically compounds 2 and 3. Detailed NMR spectroscopy experiments reveal the presence of diastereomers and tautomers in these compounds. Compo...
In this study, locally available adsorbent pineapple (Ananas comosus) peel has been tested by preparing activated carbon through KOH activation for its effectiveness in removing hexavalent chromium and divalent lead present in water at low concentrat...