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14 articles for “aqueous medium”
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Study of Corrosion of Ferrous and Non-Ferrous Metals in Aqueous Medium
Abstract: Metals, like ferrous and non-ferrous, interact on their interface to develop corrosion cells. The aqueous medium produces a hostile environment due to the availability of dissolved oxygen, acids, bases, salts, bio-waste, and effluents. The solubility of acidic gases oxide of carbon, oxide of nitrogen, and oxide of sculpture create an acidic medium for metal. These unfriendly environments accelerate corrosion reactions and metals exhibit uniform, galvanic, pitting, crevice, stress, and lynching …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 1, 2025 · pp. 44–50 Read article
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Kinetic Modeling and Thermodynamic Study of the Simultaneous Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs) Onto Organomontmorillonite in Aqueous Medium
Abstract: Water is a vital source of human life, but it has frequently been polluted by mono and polycyclic aromatic hydrocarbons, usually from petrochemicals in petroleum industrial effluents as well as other anthropogenic activities. This study investigate the potential of montmorillonite intercalated HDTMAand TMPA cations for effective removal of five (5) different polycyclic aromatic hydrocarbons (PAH) namely: naphthalene, anthracene, chrysene,benzo(a)pyrene and benzo(g,h,i) perylene in aqueous medium. To research PAH adsorption behaviour …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 1, 2022 · pp. 28–38 Read article
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Comparative Acoustical and Viscometric Study Of L-Alanine And L-Arginine in Aqueous Glycerol Medium: Effect of Side Chain Polarity and Charge On Molecular Interactions
Abstract: The acoustical and viscometric properties of L-Alanine (neutral, nonpolar) and L-Arginine (basic, charged) in 10% aqueous glycerol have been investigated over a concentration range of 0.01 to 0.1 mol·kg⁻¹ at temperatures T = 293.15, 298.15, 303.15, 308.15, 313.15, and 318.15 K under atmospheric pressure. Experimental measurements of ultrasonic velocity (µ), density (ρ), and viscosity (η) have been used to derive adiabatic compressibility (), apparent molar volume (Φv), partial molar volume …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 Read article
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Comparative Acoustical and Viscometric Study Of L-Alanine And L-Arginine in Aqueous Glycerol Medium: Effect of Side Chain Polarity and Charge On Molecular Interactions
Abstract: The acoustical and viscometric properties of L-Alanine (neutral, nonpolar) and L-Arginine (basic, charged) in 10% aqueous glycerol have been investigated over a concentration range of 0.01 to 0.1 mol·kg⁻¹ at temperatures T = 293.15, 298.15, 303.15, 308.15, 313.15, and 318.15 K under atmospheric pressure. Experimental measurements of ultrasonic velocity (µ), density (ρ), and viscosity (η) have been used to derive adiabatic compressibility (), apparent molar volume (Φv), partial molar volume …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 2, 2026 Read article
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Kinetics and Mechanisms of the Reduction of Some Carbonyl Compounds with Sodium Dithionite in Aqueous Alkaline Medium
Abstract: Kinetics of the reduction of some carbonyl compounds (acetophenone, benzophenone, benzaldehyde, and salicylaldehyde) with sodium dithionite was studied at 28± 0.5oC and basic concentration in the range of 0.01 to 0.05 mol dm-3 (NaHCO3). Under these conditions, the reaction rates were found to be first order with respect to sodium dithionite as plot of log kobs versus log [S2O42-] showed linearity to about 95% extent of reaction, however, the overall …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 2, 2016 · pp. 11–19 Read article
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A Review on Green Inhibitors to Corrosion of Steel
Abstract: Traditions of green corrosion inhibitors are described to elucidate soybean oil derivatives, Spondias cytherea leaves, Rosmarinus officinalis L. leaves, Chrysophyllum albidum; Tridax procumbens L. leaves, roasted coffee, Jatropha curcas leaves, Propolis, Manilkara zapota fruit peel, avocado, Canna indica flower. Green inhibitors are ever praised due to environmentally friendly usage. Industrial feasibility is studied from laboratory simulations. Carbonated drink corrosion of steel is most acceptable to use green inhibitors. Corrosion in …
Published in International Journal of Composite and Constituent Materials · Vol. 5, Issue 1, 2019 · pp. 12–21 Read article
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Indigo Carmine Oxidations in Aqueous and Micellar Media Using Specific Oxidants—A Review Article
Abstract: Abstract Indigo carmine is an anionic synthetic dye widely used in textile, food, and pharmaceutical industries. The discharge of this dye into water bodies poses severe environmental concerns due to its intense color, more stability, and resistance to biodegradation. Consequently, the oxidation and degradation of this dye through electron transfer reactions have been widely investigated. The present review focuses on studies related to oxidation of indigo carmine dye using various …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 44–56 Read article
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Investigations of Ruthenium an Energetic Material
Abstract: The energy of ruthenium catalyzed degradative oxidation of methylparaben by the copper complex, is researched at 30ºC and at an ionic strength of 60 × 10−3mol dm−3. In the presence of catalyst ruthenium(III), the reaction between methyl and diperiodatocuprate in aqueous alkaline medium exhibits 1:1 stoichiometry.
Published in International Journal of Energetic Materials · Vol. 2, Issue 1, 2016 · pp. 27–30 Read article
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Extraction of Xylanases from Media Based on three Agricolous Co-products by An Aqueous Two-phase System
Abstract: Jonesia denitrificans BN13 grows very well on a medium made out of agricultural byproducts like orange peel, esparto grass, and retam; the relative enzyme activity of these three substrates was 0.662, 0.711, and 0.835 U/ml, respectively First time xylanases were effectively extracted utilising aqueous two-phase system (ATPS) that had 3.5% PEG, 14% KH2PO4/K2HPO4, and 9% KI, The inclusion of cells resulted in much improved output from the system, which is …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 2, 2022 · pp. 7–15 Read article
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Particle Size Measurement of Porous Silicon Particles: A Short Review
Abstract: Nano particles of increasingly smaller particle size and various material compositions are being developed for the pharmaceutical, bio-medical, electronics, optoelectronics, energy, catalyst and ceramic industry. These nanoparticles are very much useful in numerous applications of nanoscience and nanotechnology field. Several nanoparticles can be formed and dissolved in aqueous or liquid medium. Porous silicon film can be fabricated by reaction induced vapour phase strain etch method and porous silicon nanoparticle can …
Published in International Journal of Composite and Constituent Materials · Vol. 5, Issue 1, 2019 · pp. 8–11 Read article
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A New Method of Unicellular Alga Concentration using Hydrogen Bubbles Photoelectroflotation Process Powered by Solar Energy
Abstract: Most of the existing unicellular algae are used to enrich closed ecosystems with pure oxygen in the process of biosynthesis. The concentrate of unicellular algae contains not only living cells, but also the full range of water-soluble metabolites, contained in their nutrient medium. The concentrate of unicellular algae can be used in any existing animal feeding systems, as well as in the production of granular feed. The most interesting is …
Published in International Journal of Analytical and Applied Chemistry · Vol. 9, Issue 1, 2023 · pp. 1–16 Read article
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A Detailed Lumped Model for Vinyl Acetate Emulsion Polymerization
Abstract: Abstract A mathematical model was developed to simulate emulsion polymerization of vinyl acetate monomer in isothermal, batch and semi-batch reactors. The recipe components included monomer (vinyl acetate), initiator (potassium persulfate), surfactant (sodium dodecyl sulfate) and water as the dispersion medium. The two important phenomena, particle nucleation and particle growth, were modeled in adequate detail. The mechanistic details included: particle formation via micellar nucleation; coupling of the radical concentration in the …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 1–12 Read article
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Thermo-Acoustic Investigation of Molecular Interactions in Aqueous Solutions of L-Histidine at Different Temperatures
Abstract: The present study investigates the acoustic and thermodynamic behavior of aqueous solutions of L-Histidine across a concentration range of 0.01 m to 0.1 m and temperatures varying from 293.15 K to 318.15 K in 5 K intervals. Ultrasonic velocity (μ), density (ρ), and viscosity (η) measurements wereconducted with high precision to understand the solution behavior under different thermal conditions.Temperature constancy during measurements was ensured using a refrigerated circulatory bath withwater …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 2, 2025 · pp. 9–17 Read article
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Application of nanotechnology of the effect of an aqueous solution of catholyte on the viability of biological cells and of the effect of an aqueous solution of anolyte on the destruction of cancer cells
Abstract: AbstractNanotechnologies are used in processes occurring in nanometer sizes, at the level of molecules, atoms, ions, etc. The combination of biology, medicine and nanotechnology has led to the emergence of new methods and devices that make it possible to use the chemical, mechanical and other properties of molecules, atoms, ions, as well as to discover new phenomena and biological processes occurring at the molecular, atomic and ionic level. The article …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 2, 2022 · pp. 1–14 Read article