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Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess

Received: 25 March 2021     Accepted: 12 April 2021     Published: 23 April 2021
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Abstract

Sodium ethoxide is a specific chemical product of synthesis used in laboratory, thus its presence at the suppliers stays very periodic and on order. It was in that sense that this project to synthesize a concentrated solution of sodium ethoxide got off at ambient temperature, under normal atmospheric pressure in an uncovered beaker using ethanol 90% of purity and sodium hydroxide 99% of purity seeing that the ethanol molecules were in excess in comparison with sodium hydroxide molecules which quantities were all soluble in ethanol. The initial calculated pH was equal to 15.23. In addition, not only an extraction procedure of the concentrated sodium ethoxide was done but also a titration procedure of the concentrated sodium ethoxide solution by hydrochloric acid HCl-0.1N was established and permitted to evaluate kinetic parameters of this synthesis reaction on these experimental conditions. The evaluated molar conversion from the initial quantities of sodium hydroxide was 88.49% after 3h25mn of reaction. It was noticed that the formation of sodium ethoxide was initially very important and very speed confirming the negativity of its standard molar enthalpies. Thus, the initial speed formation of synthesized sodium ethoxide was approximately equal to 0.013 [[mol×l-1×s-1]. Once synthesized, the total crystallization of the concentrated sodium ethoxide was tried with an evaluation of its porosity by immersion in dichloromethane giving a value in the order of 54.60%.

Published in World Journal of Applied Chemistry (Volume 6, Issue 1)
DOI 10.11648/j.wjac.20210601.12
Page(s) 6-11
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Sodium Ethoxide, Ethanol, Sodium Hydroxide, Hydrochloric Acid

References
[1] Material Safety Datasheet" (PDF). certified-lye.com.
[2] Material Safety Datasheet 2" (PDF). hillbrothers.com.
[3] Sodium Hydroxide – Compound Summary". Retrieved June 12, 2012.
[4] https://en.wikipedia.org/wiki/Sodium_hydroxide#cite_note-msd-1
[5] https://fr.wikipedia.org/wiki/Hydroxyde_de_sodium
[6] Stephen K. Lower, “Acid-base Equilibria and Calculations” A Chem 1 Reference Text- Simon Fraser University.
[7] Etude sommaire des mélanges - https://www.lhce.lu/Chimie/Publications/PDF/AB7.pdf
[8] Merck – sodium ethoxide 20% solution in ethanol for synthesis - https://www.merckmillipore.com/ZA/en/product/Sodium-ethoxide,MDA_CHEM-818199?ReferrerURL=https%3A%2F%2Fwww.google.com%2F
[9] K. Chandran, T. G. Srinivasan, A. Gopalan, V. Ganesan “Standard molar enthalpies of formation of sodium alkoxides” ScienceDirect J. Chem. Thermodynamics 39 (2007) 449-454. - aChemistry Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, TN, India, bIndustrial Chemistry Department, Alagappa University, Karaikudi 630 006, TN, India – https://www.academia.edu/22961424/Standard_molar_enthalpies_of_formation_of_sodium_alkoxides
[10] K. Chandran, R. Nithya, K. Sankaran, A. Gopalan and V. Ganesan “Synthesis and characterization of sodium alkoxides” Materials Chemistry Division, Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India Department of Industrial Chemistry, Alagappa University, Karaikudi 630 006, India.
[11] Vacek J. 1984 Alkali metal alcoholates, Patent N° CS 213119.
[12] http://www.refractometer.pl/refraction-datasheet-ethanol
[13] http://www.chimix.com/cours1/redox1.htm
[14] https://en.wikipedia.org/wiki/Sodium_ethoxide
[15] Maurice Beske, Lukas Tapmeyer, Martin U. Schmidt “Crystal structure of sodium ethoxide (C2H5ONa), unravelled after 180 years”– Chemical communications Issue 24, 2020 - 56 (24): 3520–3523 - Goethe University, Institute of Inorganic and Analytical Chemistry, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany.
[16] K. Sinclair Whitaker, D. Todd Whitaker, "Sodium Ethoxide" Encyclopedia of Reagents for Organic Synthesis 2001. doi: 10.1002/047084289X.rs070.
[17] Standard Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water. ASTM-Designation C20-00.
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    Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara. (2021). Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess. World Journal of Applied Chemistry, 6(1), 6-11. https://doi.org/10.11648/j.wjac.20210601.12

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    ACS Style

    Nambinina Richard Randriana; Avotra Marson Randrianomenjanahary; Andry Tahina Rabeharitsara. Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess. World J. Appl. Chem. 2021, 6(1), 6-11. doi: 10.11648/j.wjac.20210601.12

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    AMA Style

    Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara. Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess. World J Appl Chem. 2021;6(1):6-11. doi: 10.11648/j.wjac.20210601.12

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  • @article{10.11648/j.wjac.20210601.12,
      author = {Nambinina Richard Randriana and Avotra Marson Randrianomenjanahary and Andry Tahina Rabeharitsara},
      title = {Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess},
      journal = {World Journal of Applied Chemistry},
      volume = {6},
      number = {1},
      pages = {6-11},
      doi = {10.11648/j.wjac.20210601.12},
      url = {https://doi.org/10.11648/j.wjac.20210601.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjac.20210601.12},
      abstract = {Sodium ethoxide is a specific chemical product of synthesis used in laboratory, thus its presence at the suppliers stays very periodic and on order. It was in that sense that this project to synthesize a concentrated solution of sodium ethoxide got off at ambient temperature, under normal atmospheric pressure in an uncovered beaker using ethanol 90% of purity and sodium hydroxide 99% of purity seeing that the ethanol molecules were in excess in comparison with sodium hydroxide molecules which quantities were all soluble in ethanol. The initial calculated pH was equal to 15.23. In addition, not only an extraction procedure of the concentrated sodium ethoxide was done but also a titration procedure of the concentrated sodium ethoxide solution by hydrochloric acid HCl-0.1N was established and permitted to evaluate kinetic parameters of this synthesis reaction on these experimental conditions. The evaluated molar conversion from the initial quantities of sodium hydroxide was 88.49% after 3h25mn of reaction. It was noticed that the formation of sodium ethoxide was initially very important and very speed confirming the negativity of its standard molar enthalpies. Thus, the initial speed formation of synthesized sodium ethoxide was approximately equal to 0.013 [[mol×l-1×s-1]. Once synthesized, the total crystallization of the concentrated sodium ethoxide was tried with an evaluation of its porosity by immersion in dichloromethane giving a value in the order of 54.60%.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess
    AU  - Nambinina Richard Randriana
    AU  - Avotra Marson Randrianomenjanahary
    AU  - Andry Tahina Rabeharitsara
    Y1  - 2021/04/23
    PY  - 2021
    N1  - https://doi.org/10.11648/j.wjac.20210601.12
    DO  - 10.11648/j.wjac.20210601.12
    T2  - World Journal of Applied Chemistry
    JF  - World Journal of Applied Chemistry
    JO  - World Journal of Applied Chemistry
    SP  - 6
    EP  - 11
    PB  - Science Publishing Group
    SN  - 2637-5982
    UR  - https://doi.org/10.11648/j.wjac.20210601.12
    AB  - Sodium ethoxide is a specific chemical product of synthesis used in laboratory, thus its presence at the suppliers stays very periodic and on order. It was in that sense that this project to synthesize a concentrated solution of sodium ethoxide got off at ambient temperature, under normal atmospheric pressure in an uncovered beaker using ethanol 90% of purity and sodium hydroxide 99% of purity seeing that the ethanol molecules were in excess in comparison with sodium hydroxide molecules which quantities were all soluble in ethanol. The initial calculated pH was equal to 15.23. In addition, not only an extraction procedure of the concentrated sodium ethoxide was done but also a titration procedure of the concentrated sodium ethoxide solution by hydrochloric acid HCl-0.1N was established and permitted to evaluate kinetic parameters of this synthesis reaction on these experimental conditions. The evaluated molar conversion from the initial quantities of sodium hydroxide was 88.49% after 3h25mn of reaction. It was noticed that the formation of sodium ethoxide was initially very important and very speed confirming the negativity of its standard molar enthalpies. Thus, the initial speed formation of synthesized sodium ethoxide was approximately equal to 0.013 [[mol×l-1×s-1]. Once synthesized, the total crystallization of the concentrated sodium ethoxide was tried with an evaluation of its porosity by immersion in dichloromethane giving a value in the order of 54.60%.
    VL  - 6
    IS  - 1
    ER  - 

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Author Information
  • Chemical Process Engineering Department, Polytechnics Engineer School of Antananarivo, Antananarivo University, Antananarivo, Madagascar

  • Chemical Process Engineering Department, Polytechnics Engineer School of Antananarivo, Antananarivo University, Antananarivo, Madagascar

  • Chemical Process Engineering Department, Polytechnics Engineer School of Antananarivo, Antananarivo University, Antananarivo, Madagascar

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