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18 articles for “concentration polarization”
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Refractometrically studies ofAtorvastatin drugs in various concentrationsof polar protic, aprotic and non-polar solvents at 303.150K.
Abstract: By using the refractometer to investigating the density and refractive index, molar refraction (Rm) and molar polarizability constant (a) at various concentration Atorvastatin heterocyclic drugs have been studied in ethanol, DMF and dioxane solvent at 303.150K.The magnitude of molar refraction (Rm) and molar polarizability constant (a) of Atorvastatindrug is observed to be higher in polar protic solvents like ethanol than polar aprotic solvents like DMF and non-polar solvents as like …
Published in International Journal of Analytical and Applied Chemistry · Vol. 9, Issue 2, 2023 · pp. 26–30 Read article
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Analysis of Optimal Clearance Volume Between Two Concentric Cylinders in a Couette Flow Membrane Module Using a Computational Fluid Dynamics Approach
Abstract: Membrane-based separation has become an integral part of the separation industry due to its diverse applications across various fields. However, this progress is often hindered by two major challenges: fouling and concentration polarization. Many membrane modules have made significant efforts to overcome these obstacles, yet a satisfactory solution to mitigate these issues and facilitate membrane-based processes in the separation industries is still needed. These issues are successfully handled using Dynamic …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 1, 2025 · pp. 135–143 Read article
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Comprehensive Review of Membrane Fouling Control Mechanisms
Abstract: One of the biggest problems with membrane-based separation procedures is membrane fouling. As particles, organic matter, microbes, and other materials build up on the membrane’s surface or inside its pores, the effectiveness of membranes – such as those used in reverse osmosis, ultrafiltration, and microfiltration – declines over time. The effectiveness and longevity of the membrane are eventually lowered because of this fouling, which causes a drop in flux and …
Published in International Journal of Polymer Science and Engineering · Vol. 11, Issue 2, 2025 · pp. 1–9 Read article
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Performance Characterization of Couette FlowMembrane Module Through Computational FluidDynamics
Abstract: Membrane-based separation has been in rigorous applications in health services since the last fewdecennia. Dynamic Shear Enhanced Membrane Filtration Pilots (DSEMFPs) is a promising membranemodule. The first reported DSEMFPs was a Couette flow type module in 1985. It was used for collectingplasma from donors. This module consists of two concentric cylinders. The outer one is fixed while theinner one is rotating, having a membrane on the outer surface of it. …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 1, 2024 · pp. 1–5 Read article
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Hydrodynamic Study Through Computational FluidDynamics of Radial Flow Membrane Module
Abstract: Historically Crossflow Membrane modules came first in the membrane-based separation (MBS)process. Its high shear generation overcomes two non-idealities concentration polarization andsubsequent fouling. Primarily, high shear generation and large surface area create a positive domainfor large applications. Thereafter, feed flow rate-dependent shear generation creates a hindrance.This obstruction is overcome with Dynamic Shear Enhanced Membrane Filtration Pilot (DSEMFPs).Low surface area is a vital drawback of DSEMFPs. This radial flow membrane module with …
Published in International Journal of Polymer Science and Engineering · Vol. 10, Issue 1, 2024 · pp. 8–15 Read article
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Investigating study on flux enhancement techniques in a Nanofiltration pilot plant – An Experimental overview
Abstract: Water consumption and utilization in chemical allied industries is increasing progressively and global availability of fresh water is reducing. Reclamation of water from various industrial waste streams is play very vital role to overcome the current situation of water scarcity. Various conventional treatment methods are available for water reclamation. The performance of the membrane separation process, in terms of flux and rejection of membrane is directly influenced by the resistances …
Published in International Journal of Chemical Separation Technology · Vol. 4, Issue 2, 2018 · pp. 27–34 Read article
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A study of mesomorphic properties of Rod shaped 1, 2, 4-triazine integrated imine compounds
Abstract: Synthesis of typical rod-like liquid crystals has a great interest in numerous applications. The model has a terminal chain attached to only one end of the central rigid core. At the other end of the rigid core is a functional group that can be either polar or nonpolar. There are three kinds of rod-like liquid crystal, in this segment applies specifically to materials with template designs. Generally, terminal groups which …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 2, 2022 · pp. 16–25 Read article
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Corrosion Protection of Copper Metal by Nanocoating in Nitrogen dioxide Environment
Abstract: Nitrogen dioxide is an acidic gas. It absorbs moisture to produce nitric acid. It creates corrosive medium for copper metal. It forms corrosion cell on the surface of copper and accelerate corrosion reactions. The corrosion cell formation is written as: Cu|Cu2+||H+|H2 thus corrosion reactions start and copper is oxidized into Cu2+surface and it is oxidized into Cu2+ whereas H+ ion is reduced into H2. Nitric acid environment copper exhibits galvanic, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Corrosion Inhibition Studies of Triazinedithiol Inhibitors for Mild Steel in an Acid Chloride Solution
Abstract: Two environmental pleasant triazine dithiol inhibitors 6-diallylamino-1,3,5-triazine-2,4-dithiol monosodium (DAN)and 6-dibutylamino-1,3,5-triazine-2,4-dithiol monosodium (DBN) was synthesized and their corrosion inhibition for slight metallic in a 1 M HCl solution turned into studied the usage of weight reduction methods, electrochemical measurements, and scanning electron microscopy (SEM) techniques. The inhibition efficiency of both DAN and DBN improved with increases in inhibitor concentration but decreased with increases in temperature. Results from potentiodynamic polarization and EIS …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 2, 2020 · pp. 1–10 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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Ferromagnetism in II-VI Diluted Magnetic Semiconductor, Zn0.96Mn0.04O Nanostructures by Green’s Theorem
Abstract: Ferromagnetism in II-VI diluted magnetic semiconductor, Zn0.96Mn0.04O is studied. Using the Heisenberg principle, the spin exchange between the neighboring spin is discussed. Heisenberg’s model describes the Hamiltonian of the system in terms of spin density and excitons. Mathematically, magnetic parameters such as magnetizations and magnetic susceptibility are determined by Green’s function. Ferromagnetism is expected from sp-d exchange interactions (RKKY), point defects such as oxygen vacancies, and Zn interstitial and quantum …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 2, 2022 · pp. 28–36 Read article
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Modern Ceramic Compose to Pervade Electronics
Abstract: This article composed from articles where ceramics, photonics, and allied fame schemed. Scheme of materials is studied to transduce optical, electrical, mechanical, and magnetic phenomenon. Evolution of description at nanometer level of distributing from non-degenerating phases schemed ferrite in the ferroelectric matter to subject magnetic memory contravened from/by electrostatic to electrical current preserved memory acts. Suggestive selective scriptive as from magneto-electric effect induced dielectric polarization of material under effects of …
Published in International Journal of Metallurgy and Alloys · Vol. 7, Issue 2, 2021 · pp. 11–16 Read article
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Study the Corrosive Effect of Greenhouse Gases on Metallic and Non-metallic Materials
Abstract: Carbon dioxide is a major corrosive pollutant for building materials. It enters inside materials by diffusion or osmosis process and in presence of moisture it produces H2CO3 which decrease the pH value and accelerates chemical and electrochemical reaction with building materials. The carbonation reaction produces deterioration inside and outside of building materials. It produces corrosion reaction with metallic bar and disbanding with concrete. CO2 reacts with Ca (OH)2 and Mg(OH)2 …
Published in International Journal of Metallurgy and Alloys · Vol. 7, Issue 2, 2021 · pp. 17–28 Read article
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Green Synthesis, Characterization and Antimicrobial Studies of Ni(II) and Cu(II) Schiff Base Complexes
Abstract: Solvent-assisted mechanochemical reaction was used to synthesize new transition metal complexes of Ni(II) and Cu(II) with Schiff base ligand (H2L) obtained from condensation of 2-hydroxy-1- napthaldehyde with 2 aminobenzimidazole. Melting point/decomposition temperature, solubility test, FT-IR, powder x-ray analysis, conductivity measurement, magnetic susceptibility, elemental microanalysis, and UV/VIS spectral investigations were used to characterize the Schiff base and complexes. The complexes are of varied colours and have sharp melting points, and they …
Published in International Journal of Green Chemistry · Vol. 8, Issue 1, 2022 · pp. 9–18 Read article
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Potato Starch-Based Composites for Industrial Application
Abstract: Plastic has become an essential element in our daily life. Plastics derived from polyolefins such as polyethylene are currently used in plastic film for food wrapping, garbage bags, mulching, compost bags, and many more. These plastics are typically inactive and resistant to microbial attack and hence they remain in nature for a long time without any deformation and has a harmful effect on atmosphere. Biodegradable plastics can help solve this …
Published in International Journal of Composite and Constituent Materials · Vol. 8, Issue 2, 2022 · pp. 1–12 Read article
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Physico-Mechanical Performance of Waste Plant Fiber Reinforced Thermoplastic Composites for Automotive Applications
Abstract: To maximize the interfacial bond strength, it is necessary to investigate the direct relationship between the degree of fiber-matrix adhesion and the mechanical and fracture behavior of composites. In this work, the strength of the interfacial bond between polypropylene (PP) and waste plant fiber (Dharose plant fiber, DF) that have been subjected to ultraviolet radiation (UV) was established. By using hot press molding, unidirectional composites of PP with dharose plant …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 14–24 Read article
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Nanocoating and Electrospray Techniques Use to Mitigation Corrosion Sculptures
Abstract: The most sculptures of the world are created by the brass, bronze, iron, silver, gold and metalloid. They come in contact of corrosive pollutants to produce chemical, electrochemical and biochemical reactions and develop various form of corrosion like uniform corrosion, galvanic corrosion, pitting corrosion, stress corrosion and crevice corrosion. The corrosive gases CO2, NO2 and SO2 concentrations increase in atmosphere rapidly after industrialization. The major contributors of these gases are …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 2, 2022 · pp. 1–11 Read article