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Synthesis of Some Aryl Chalcones Using Silica-Sulphuric Acid Reagent under Solvent Free Conditions
Published 2007-01-01“…There are two series of α, β-unsaturated ketones derived form Biphenyl and 9H-Fluorenyl, and ketones with various substituted benzaldehydes under solvent free conditions using silica-sulphuric acid as a reagent in an oven. The catalyst silica is reusable and the yields of chalcones are more than 90%. …”
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Synthetic, Structural, and Biochemical Studies of Organotin(IV) With Schiff Bases Having Nitrogen and Sulphur Donor Ligands
Published 2006-01-01“…<p>Three bidentate Schiff bases having nitrogen and sulphur donor sequences were prepared by condensing S-benzyldithiocarbazate (<mml:math alttext="chem{NH_2NHCS_2CH_2C_6H_5}"> <mml:msub> <mml:mtext>NH</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> <mml:msub> <mml:mtext>NHCS</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> <mml:msub> <mml:mtext>CH</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> <mml:msub> <mml:mtext>C</mml:mtext> <mml:mn>6</mml:mn> </mml:msub> <mml:msub> <mml:mtext>H</mml:mtext> <mml:mn>5</mml:mn> </mml:msub> </mml:math>) with heterocyclic aldehydes. …”
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Extraction of Zinc and Manganese from Alkaline and Zinc-Carbon Spent Batteries by Citric-Sulphuric Acid Solution
Published 2010-01-01“…Metals are extracted by sulphuric acid leaching in the presence of citric acid as reducing agent. …”
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Constraining sulphur yields of trachytic and phonolitic volcanic eruptions: Tambora, Vesuvius, Laacher See and Campi Flegrei
Published 2024-12-01Subjects: Get full text
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Inhibiting Properties of Morpholine as Corrosion Inhibitor for Mild Steel in 2N Sulphuric Acid and Phosphoric Acid Medium
Published 2012-01-01“…The inhibition effect of morpholine on the corrosion of mild steel in 2N sulphuric acid and phosphoric acid has been studied by mass loss and polarization techniques between 302K and 333K. …”
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Improving Growth and Productivity of Oleiferous Brassicas under Changing Environment: Significance of Nitrogen and Sulphur Nutrition, and Underlying Mechanisms
Published 2012-01-01“…Among important plant nutrients, nitrogen (N) and sulphur (S) are known essential elements for growth, development, and various physiological functions in plants. …”
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Spatial-Temporal Analysis of Particulate Matter (PM10) and Sulphur Dioxide (SO2) Concentrations in Ankara Using Climate Parameters
Published 2025-01-01Subjects: Get full text
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Sulphur and Nitrogen Fertilization as a Potential Means of Agronomic Biofortification to Improve the Content and Uptake of Microelements in Spring Wheat Grain DM
Published 2018-01-01“…The aim of the field experiment was to analyze the impact of various nitrogen and sulphur doses on the content and uptake of spring grains of iron, manganese, copper, and zinc. …”
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Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria
Published 2016-05-01Subjects: Get full text
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Sonication-Assisted Synthesis of β-Mercuric Sulfide Nanoparticles
Published 2012-12-01Subjects: Get full text
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Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria
Published 2016-05-01Subjects: Get full text
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Sulphuric acid leaching of low/medium grade managanese ores using a novel nitrogeneous reductant-NH3NH2HSO4
Published 2013-01-01Subjects: Get full text
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Exogenous Application of Thidiazuron, Carbaryl, Ethephon, and Lime Sulphur Promotes Flower Abscission and Suppresses Tea Pests in the Tea Plant <i>Camellia sinensis</i> (L.)...
Published 2025-01-01“…Therefore, the effects of thidiazuron, carbaryl, ethephon, and lime sulphur on flower buds and flower abscission in tea plants were investigated. …”
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Extraction of Nickel Oxide from Spent Catalyst for Environmentally Safe Disposal
Published 2025-02-01Subjects: Get full text
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Application of ensemble learning techniques to model the atmospheric concentration of SO2
Published 2019-07-01Subjects: Get full text
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Biofortification of Spring Barley Grain with Microelements through Sulfur Fertilization
Published 2019-01-01“…In a three-year single-factor field experiment setup on luvisols with low content of sulphur, the following fertilizers were tested: ammonium sulphate, potassium sulphate, and Wigor S (80% elemental sulphur and 20% bentonite). …”
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