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432 articles for “Metals”
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Excessive Application of Synthetic Fertilizers and their Adverse Impact on the Productivity of Soil
Abstract: In the present scenario of agriculture, the chemical fertilizers are the essential part of growing any kind of crop. They macro and micro nutrients play a vital role in the production of crop and can be increased but plant growth do not attain developed roots and do not attain maturity. The excessive use of fertilizers is very dangerous and enter the water, air and soil. The toxic substances absorbed by …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 2, 2021 · pp. 39–45 Read article
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Determination of the Flow Velocity Resistance in Non- Submerged Woody Plants
Abstract: Vegetation on the bank of a river or stream has a major influence on resistance, velocity distribution,and turbulence force. The resistance to flow in open channels depends on different channel and flow parameters. Out of many factors, vegetation is the mainly important parameter in open channels. In this study have been five points to measure the velocity in the channel. The experimental work has been done by a rectangular channel …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 1–7 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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Review Paper on Solid Waste Management in India
Abstract: Solid waste management is a major problem in urban areas of India. It is due to large urbanization, industrialization, and increasing population. The solid waste management systems ranked very poorly in India over the last few decades. Approximately 90% of residual waste is dumped instead of its proper landfilling. The solid waste management system should be improved in India because it will be beneficial for our future generations and the …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 66–71 Read article
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Analysis of the Dangerous Impacts of Food Preservatives
Abstract: Every living thing requires nourishment to survive. Nutrients found in food include vitamins, minerals, fats, proteins, and carbohydrates. In order to produce energy, promote development, and sustain life, an organism must consume and digest the nutrients included in food. Some preservatives are used to extend the shelf life and maintain the quality of food, but they may have negative side effects; therefore, whenever possible, preservative-free foods should be used. In …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 2, 2022 · pp. 43–49 Read article
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Studies on Zirconium(IV) Telluroiodate: A New Heteropolyacid Based Inorganic Ion Exchange Material
Abstract: Zirconium (IV) telluroiodate has been synthesized as a new inorganic cation exchanger by adding a mixture of aqueous solution of 0.1 M potassium iodate and 0.1 M sodium tellurite to aqueous solution of 0.1 M zirconium (IV) oxychloride under varying mixing ratios at pH 1. Its ion exchange capacity for Na+ was found to be 1.85 meqg1 of dry exchanger. The material has been characterized on the basis of chemical …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 1, 2016 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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Preparation and Characterization of Mixed Ligand Complexes of Cobalt(II) and Ni(II) salt of Phthalimide with Some Oxamic Acids
Abstract: The mixed ligand complexes of oxamic acids with Co(II) and Ni(II) salt of phthalimide were prepared, where oxm= N-phenyl thio urea oxamic acid(NPTUOA),m-tolumide oxamic acid (m-TOA), N-pyrrazole oxamic acid & phth= Co(II) and Ni(II) salt of phthamlimide. These all mixed ligand complexes examined by their elemental analysis, melting points, UV-visible analysis, I.R studies, magnetic susceptibility measurements and thin layer chromatography. Elemental analysis of the complexes shows 1:2 (Metal:Ligand) stiochiometry for …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article
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ISONIAZID STABILIZED TUNGSTEN TRICARBONYL COMPLEX: A NEW CO-RELEASING MOLECULE WITH ANTIBACTERIAL ACTIVITY
Abstract: Transition metal carbonyl complexes substituted with biologically active ligand can act as CO-releasing molecules which have beneficial roles including antimicrobial activity. Careful choices of ancillary ligand such as isoniazid help in eliminating issues of toxicity that may arise from drug substrates. Substitution reaction of tungsten hexacarbonyl with isoniazid in the presence of trimethylamine N-oxide under nitrogen atmosphere was carried out at ambient temperature for 72 hrs. The product was characterized …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 1, 2019 · pp. 36–43 Read article
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SYNTHESIS AND IR-SPECTROSCOPIC STUDY OF MIXED LIGAND COMPLEX COMPOUNDS OF COPPER (II) FORMAT WITH SOME AMIDES
Abstract: Complex compounds of metals with amides, having biological activity are widely used in agriculture. Complex compounds of copper with organic ligands are physiologically active, participating in the vital processes of living organisms; the formiats have bactericidal and fungicidal properties. For the first time, mixed ligand complex compounds of copper (II) formate with formamide, thiocarbamide, acetamide and carbamide in an aqueous solution were synthesized. Using the methods of IR spectroscopy and …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 2, 2020 · pp. 31–38 Read article
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Review Paper on Mannich Bases for Heterocyclic Compound Synthesis
Abstract: Mannich bases are the Lewis bases which are β-amino carbonyl compounds synthesized as the endproducts of well known condensation reaction known as Mannich reaction. These are theaminoalkylation reactions involving the formation of carbon-carbon, carbon-Nitrogen, carbonsulphurbonds. Mannich bases of 2-furylmethylketone, catechol, 4-chlorophenol, derivative ofberberine, lawsone, anisaldehyde, benzaldehyde show diversity of biological activities. Mannichreaction is a carbon-carbon bond forming nucleophilic addition reaction and is a key step in synthesisof a widespread variety …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 1, 2021 · pp. 39–50 Read article
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Survey on Semicarbazide and Thiosemicarbazide Derivatives
Abstract: This review insurances around semicarbazide and thiosemicarbazide with derivatives throughpresentation of their preparation methods, reactions like cyclization processes. Thiosemicarbazonesand semicarbazones are an important class of ligands for the synthesis of transition metal complexeswith applications in medicine and electrochemistry, also in organic chemistry fields., Tumor is amalignant in addition invasive development or cancer, particularly of epithelium derivation, whichinclines to recur after erasure also may metastasize to other places. It befalls due …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 1, 2021 · pp. 51–57 Read article
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Review on Advanced Small Modular Reactors (SMRs)
Abstract: The Department's objective of developing secure, fair, and cheap nuclear power solutions features advanced smaller module units. In the United States, sophisticated SMRs are being developed in a range of sizes, technological factors, capacities, and installation situations. These advanced reactors, which are expected to range in capacity from tens to hundreds of mw, can be utilised for power production, process heat, purification, and other industrial applications. Clear water or even …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 1, 2022 · pp. 19–24 Read article
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Investigation of Thrust Bearing High Temperature in Gas Turbine
Abstract: Gas turbines in electric power generation and various industrial applications has made remarkable improvement in the current scenario in terms of size, efficiency and prominence. In order to maintain the sustainability of high level performance and increased reliability of the gas turbine, it has become mandatory to carryout in depth diagnostic methods and frame maintenance plans. This paper mainly concentrates on the analysis of the repeated tripping of gas turbine …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 3, Issue 1, 2017 · pp. 1–13 Read article
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Strategies for Electronic Wastes Management for Sustainable and Green Environment in Nigeria
Abstract: Adequate strategies need to be put in place for electrical and electronic waste management, renewable energy commercialization, green societies and sustainable development in Nigeria. This paper examined handling, disposal and management of electronic waste in Nigerian environment. Methodology adopted includes literature reviews of issues on this subject matter, specific site inspection, surveys and secondary data from users and industries with massive electronic waste. It has been discovered that these wastes …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 7, Issue 2, 2021 · pp. 38–46 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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Deep Sea Rock Drill Fluid Improved Performance by Addition of Nanomaterials
Abstract: This review contains descriptive issues about improvement in bentonite-based drill fluid after nano matter addition applicable to oil and gas well. This is to improve high-temperature access as well as viscous-dynamic performances under low fluid loss. Oil-based drill fluid seemed to be more favorable as restrict seal by mud cake containing shale whereas water-based drill fluid is economical and ecofriendly. Shale of mine is often searched as the sacred source …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 1, 2021 · pp. 29–38 Read article
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Advantage of Microsilica in Concrete Compressive Strength
Abstract: Abstract Microsilica is an undefined sort of silica tidy for the most part gathered in sack house channels as by-result of the silicon and ferro-silicon generation. The paper condenses essential physical and synthetic properties of miniaturized scale silica and utilizes those outcomes for an assessment of small scale silica from a Health Safety and Environment (HSE) point of view. Small scale silica comprises of circular particles with a normal molecule …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 37–43 Read article
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Study the effect of single and double layers of welded mesh & percentages of steel fiber on different sample
Abstract: Ferrocement is a thin composite structure made a rich mortar mix based on cement with relatively different type of wire mesh. The main objective of this research paper is to constructed a low cost insulation resistance residential building system for urban as well as for ruler development. Ferrocement technologies reduced cost, time and structural load at least 30% to 50%. It is long-lasting and cost-effective due to locally available material …
Published in International Journal of Concrete Technology · Vol. 8, Issue 2, 2022 · pp. 22–30 Read article