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Abstract:   Crown ethers strongly bind certain cations, forming complexes. The oxygen atoms are well situated to coordinate with a cation located at the interior of the ring, whereas the exterior of the ring is hydrophobic. The resulting cations often form salts that are soluble in nonpolar solvents, and for this […]

Trace Metal Role on Crown Ethers Stability by DFT Methods



Abstract: The goal of this research is to investigate of acid red18(AR18) dye from urban drinking water by batch proxy electrochemical reactor with using zinc-copper electrode (distance 2 cm) and hydrogen peroxide. The variables include pH(4-10), concentration of AR18(100-300mg/L), reaction time(15-45min), concentration of hydrogen peroxide(0.5-1.5 mg/L), and current density(3-9 mA/cm2). […]

Proxy Electrochemical Process for Acid Red 18 Dye Removal



Abstract:   Crown ethers are cyclic chemical compounds that consist of a ring containing several ether groups. The most common crown ethers are oligomers of ethylene oxide, the repeating unit being ethyleneoxy, i.e., -CH2CH2O-. Important members of this series are the tetramer (n = 4), the pentamer (n = 5), and […]

Recognising Stability of Crown Ethers by DFT Methods



Abstract: The electrocoagulation: is the metal dissolution AL / FE electrical current passes through the electrode, the anode, the ions immediately polymer or aluminum hydroxide, is hydrolyzed.Impurities present in the sample during chemical reactions and physical and electrical analysis, the colloidal material has become, then the flotation, sedimentation and filtration, […]

Reducing the Amount of Oil in the Water (PW) by ...