Showing 21 - 40 results of 133 for search '"sulphur"', query time: 0.05s Refine Results
  1. 21

    Synthesis of Some Aryl Chalcones Using Silica-Sulphuric Acid Reagent under Solvent Free Conditions by G. Thirunarayanan, G. Vanangamudi

    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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  2. 22

    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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  3. 23

    Extraction of Zinc and Manganese from Alkaline and Zinc-Carbon Spent Batteries by Citric-Sulphuric Acid Solution by Francesco Ferella, Ida De Michelis, Francesca Beolchini, Valentina Innocenzi, Francesco Vegliò

    Published 2010-01-01
    “…Metals are extracted by sulphuric acid leaching in the presence of citric acid as reducing agent. …”
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    Inhibiting Properties of Morpholine as Corrosion Inhibitor for Mild Steel in 2N Sulphuric Acid and Phosphoric Acid Medium by K. Jayanthi, M. Sivaraju, K. Kannan

    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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  6. 26

    Improving Growth and Productivity of Oleiferous Brassicas under Changing Environment: Significance of Nitrogen and Sulphur Nutrition, and Underlying Mechanisms by Naser A. Anjum, Sarvajeet S. Gill, Shahid Umar, Iqbal Ahmad, Armando C. Duarte, Eduarda Pereira

    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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    Sulphur and Nitrogen Fertilization as a Potential Means of Agronomic Biofortification to Improve the Content and Uptake of Microelements in Spring Wheat Grain DM by Hanna Klikocka, Marek Marks

    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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    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.)... by Meina Jin, Xiaoyue Lun, Ruirui Zhang, Yu Zhang, Xiangzhi Zhang, Feiyu Guan, Liping Wang, Yiheng Ying, Zhengqun Zhang, Xiuxiu Xu

    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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    Biofortification of Spring Barley Grain with Microelements through Sulfur Fertilization by Bożena Barczak, Magdalena Jastrzębska, Marta K. Kostrzewska

    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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