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510 articles for “elements”
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Investigation of High Corrosion Rate in Oil Production Carbon Steel Pipelines
Abstract: A comprehensive study to identify the causes and the types of internal corrosion of a 16 inch oily water production piping from production wells, which was found to be severely corroded (corrosion rate ≈5.5 mm/year) was considered. The study involves collecting and analyzing of different parameters like production data, flow velocity, CO2 partial pressure, water quantities and water species contents, gas species contents, scale chemical elements, etc. This study is …
Published in International Journal of Chemical Engineering and Processing · Vol. 2, Issue 2, 2016 · pp. 42–51 Read article
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Essence of Physicochemical Model of the Formation of Negatively Charged Microdispersed Hydrogen Bubbles in the Process of Electrolysis of Water Solutions
Abstract: Electrolytic hydrogen bubbles, formed during the electrolysis of water solutions, have two unique properties: microdispersion and negative charge of their surface, which allow them as a result of an elementary act of flotation to form strong complexes: negatively charged micro dispersed hydrogen bubbles-microscopic solid particle, biological cell, whose floatation to the free surface of water solution due to their increased volume compared to individual components ensures the successful completion of …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 1, 2022 · pp. 30–42 Read article
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EFFECT OF ALGAE & COAGULANTS ON PHARMACUTICAL EFFLUENT CHARACTERSTICS
Abstract: Pharmaceutical industry effluents may contain many elements including calcium, magnesium, silica, chromium nickel, iron, cobalt, zinc etc. These heavy metals which are produced by the industrial waste are a big threat for the environment. They can also harm the ecosystem. In this study biochemical treatment of algae and coagulants was given to pharmaceutical industry effluent and reduction in polluting parameters was determined. It was observed that in the presence of …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 1, 2019 · pp. 1–3 Read article
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Preparation of a composite Materials from activated carbon and waste plastic for water Treatment
Abstract: Insoluble resins offer several advantages in preparation processes, the chemical, photochemical and thermal mechanical properties of composites are largely affected by matrix properties. The aim of our study was a double aspect, the synthesis of a polymer-based ion exchanger from waste polystyrene and the composite material valorization in water treatment. a series of experiments was made to prepare the sulfonated polystyrene ion exchange resin and the composite material based on …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 38–48 Read article
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Electronic Waste Vs Environmental Sustainability: Global Ultimatum to Society
Abstract: We often suppose that the risks of electronic waste solely have an effect on us which come back directlywith it and are in the main a consequence of inappropriate handling. Obviously, this can be right andthere are many studies that proof the risks ensuing from direct contact with harmful materialscomparable to lead, metal or chromium. The studies together alert us concerning however differentelements, let's say brominated flame retardants generate toxic …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 1, 2021 · pp. 1–5 Read article
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Chemistry and Toxicological Impacts of Hazardous Substances in Electronic-Waste: A Review
Abstract: Over the recent past, the global market of electrical and electronic equipment (EEE) has grown exponentially, while the lifespan of these products has become increasingly shorter. Most of the cases Various heavy metals, halogenated compounds and radioactive elements which are present in ewaste,pose serious threat to the environment during their inappropriate recycling processes. Duringburning of the e-waste in the open environment, hazardous aromatic compounds and dioxins are generated which are …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 17–21 Read article
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Deforestation: Causes and Consequences of the Global Crisis
Abstract: Climate change is unavoidable due to the dynamic character of global ecosystems. The reasons of these environmental changes are both man-made and natural. Human activities have always had an impact on the environment. As economic activity and population expansion have risen to the point that they can no longer be disregarded or seen in isolation, the consequences of mankind just on environment could no longer be ignored or examined in …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 29–34 Read article
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Synthesis, Spectral and Magnetic Moment Studies of Mixed Ligand Complexes of Hydroxamic Acids with Potassium Hexathiocyanato Vanadium (II) Tetra Hydrate
Abstract: Preparation and characterization of several hydroxamic acids of 3,4,5-trimethoxy benzohydroxamic acids(TMBHA), N-phenyl–3,4,5-trimethoxy benzohydroxamic acid(PTMBHA), 3,4-dimethoxy benzohydroxamic acid(DMBHA) and N-phenyl-3,4-dimethoxy benzohydroxamic acid(PDMBHA) were prepared and reacted with potassium hexathiocynato vandate (II) K4[V(NCS)6].3H2O tetra hydrate. The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point identification, by I.R. studies, magnetic moment, molar conductance’s and by elemental analysis (C, H and N). The geometry of complexes were found …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
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SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF HYDROXAMIC ACIDS WITH POTASSIUM HEXATHIOCYANATO CHROMIUM (III) TETRA HYDRATE
Abstract: Some hydroxamic acids eg.[L1= benzohydroxamic acids (BHA), L2= N-phenyl– benzohydroxamic acid (NPBHA), L3= pivaloyl benzohydroxamic acid (PHA) and L4=N-phenyl-pivaloyl benzohydroxamic acid (PPHA) prepared and reacted with L’=Potassium hexathiocynato chromium (III) tetra hydrate K3[Cr(SCN)6]4H2O.The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point, by I.R. studies, magnetic moment, molar conductance and by elemental analysis(C,H and N).The stoichiometry of the complexes were found to be 1:2(M:L) molar …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
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Anti-tubercular activity of dioxo molybdenum (VI) metal complexes of 2-((E)-(1,5-dimethyl-2-phenyl-3-((Z)-(quinoline-8-ylimino)methyl)-2,3-dihydro-1H-pyrazole-4-ylimino)methyl)phenol
Abstract: Dioxomolybdenum(VI) complexes tetradentate ligand 2-((E)-(1,5-dimethyl-2-phenyl-3-((Z)-(quinoline-8-ylimino)methyl)-2,3-dihydro-1H-pyrazole-4-ylimino)methyl)phenol was synthesized by conventional method The ligands and their MoO22+ complexes have been characterized on the basis of elemental analysis, electronic. I.R., 1H and 13C-NMR spectral method, by their spectral studies, octahedral geometry of the complex has been proposed. On evaluation of in-vitro antitubercular activity of the ligand and dioxo Mo(VI) metal complex found that complex is more potent antitubercular agent than ligand. Keywords: anti-tubercular …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article
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The new method of purification of the industrial waste waters
Abstract: The main problem in the all existing electrofloatation methods of cleaning is the increase of the alkalization space near the cathode that leads to formation of the salts sediments on the cathode as a result of passing of the electric current through the water environment. The salts so tightly cover cathode’s surface that can cause the total curtailment of the process of electrofloatation. This can be explained by the fact …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 1, 2018 · pp. 34–44 Read article
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REVIEW ON PREPARATION METHODS & APPLICATION FIELDS OF OXADIAZOLE
Abstract: This review displays oxadiazole (five-ring) that is of great importance in the fields of pharmacy, medicine, and field of coordinated chemistry and as reagents to estimate the small quantities of trace elements and minerals. Oxadiazole is a primary role and as a basic substance for many pharmacokinetic compounds such as antimalarial drugs, anti- bacterial, and cancerous tumors. This survey described several approach for preparation methods of oxadizole with their applications …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 49–60 Read article
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Toxicity of Chromium Metal and its impact on Human health
Abstract: Chromium, a transition metal, plays a vital role as a trace element essential for human metabolism. Its presence in various oxidation states is notable, with the trivalent (Cr(III)) and hexavalent (Cr(VI)) forms being the most common and biologically significant. While Cr(III) is recognized for its involvement in insulin signaling and glucose metabolism, Cr(VI) stands out for its toxicity, posing significant risks to both human health and the environment. The extensive …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 2, 2023 · pp. 16–20 Read article
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The Process of Manufacturing of Pedal Powered Water Purifier
Abstract: Water (constituent of hydrogen & oxygen) is a requirement of everything including humans, animals, plants, & microorganisms. They can’t live without it. Due to Industrial growth & construction development, water is becoming polluted specially in rivers. As well Electricity is extremely erratic in rural and remote areas, thus making conventional water purifiers almost redundant for use. Thus, this project is specifically targeted at such areas like rural & urban where …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 4, Issue 1, 2018 · pp. 15–21 Read article
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DESIGN AND ANALYSIS OF LEAF SPRING OF AUTOMOBILE
Abstract: - Material reduction plays a significant role in present day. Automobile industry is one of the major industries in the market which is looking for weight reduction for its various components like engine, chassis, leaf springs, bumper, steering column, etc. With material reduction, both cost and weight of the component reduces. Using composites instead of steel can reduce weight and cost for automobiles which is a good sign for manufacturers …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 4, Issue 2, 2018 · pp. 42–47 Read article
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Detection of Trans Fats in Oils
Abstract: Today’s society is highly concern about their health which focuses our efforts in one direction that is how to eliminate harmful elements from our daily diet. One of them being Trans fatty acids. Detections of these can be done by various methods, but most of them are lengthy and tedious with varying accuracy. This reason has been the driving force for development of alternative methods to find accurate measurements. In …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 1, 2017 · pp. 7–14 Read article
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Review on Corrosion and Rust Inhibition of Machines in Chemical Engineering Field
Abstract: The present review involved information about corrosion and rust of machines like causes of corrosion , mechanism of corrosion ,types of corrosion , treatments. Corrosion is a natural event which includes the deterioration of element components. According to the destruction of a metal or its properties due to a reaction with its environment, which causes potentially severe damage to building , application and surface .Inhibiting corrosion to Prevent Machine Failures …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 1–9 Read article
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Retrofitting of Existing Building by Concrete Jacketing
Abstract: Seismic Retrofitting is engineered mitigation techniques for structural engineers. It is defined as the modification of existing structures to make them more resistant to seismic activity, ground motion or soil failures due to earthquakes. It is generally required for earthquake damaged and vulnerable buildings with no exposure to severe earthquakes. Retrofit enhances the structural capabilities of the building. In present time, there are many local and global retrofit techniques in …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 49–84 Read article
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Effect of Opening Shapes and Sizes on the Gravity Dam
Abstract: Design of gravity dams is an important issue in dam engineering. Opening in the dam plays a vital role in the failure of the gravity dam. In the present work finite element analysis of the gravity dam for different opening shapes and sizes are studied. Koyna dam is considered for the analysis. Study of stress concentration and deformation generated in the dam is conducted in the present work. Two different …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 2, 2017 · pp. 1–8 Read article
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Study of the Effect of Water Retarding Concrete Admixtures on the Properties of Concrete
Abstract: Water retarding concrete admixtures and super plasticizer are extensively utilized to recover the structural and mechanical properties of fresh and hardened concrete. These admixtures are more regularly used in pre-stressed concrete, slim components with overfilled and densely filled reinforcement, beams and slabs pre-cast basics and long slender column. In current decades, marvelous success has been attained in the progression of chemical admixtures for Portland cement. Most efforts have concentrated on …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 1, 2018 · pp. 10–14 Read article