Laboratory Synthesis and Titrations of IronIIchloride-FeCl<sub>2</sub> and IronII Ethoxide-Fe(OEt)<sub>2</sub> Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt)

Nambinina Richard Randriana; Avotra Marson Randrianomenjanahary; Andry Tahina Rabeharitsara

doi:doi:10.11648/j.ajac.20210905.11

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Laboratory Synthesis and Titrations of IronIIchloride-FeCl₂ and IronII Ethoxide-Fe(OEt)₂ Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt)

Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara

Published in American Journal of Applied Chemistry (Volume 9, Issue 5)

Received: 11 August 2021 Accepted: 20 August 2021 Published: 6 September 2021

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Abstract

Laboratory synthesis of IronIIchloride-FeCl₂ at approximately 200[°C] to 250[°C] using hydrochloric acid-HCl-(33%) and fine iron filament (purity>99%) was done with respecting the reaction stoichiometric. A titration procedure with NaOH-0.05N was established and allowed to titrate the FeCl₂ synthesized in solution. Thus, the mass yield against raw materials (Iron and HCl) was 67.22[%]. Then, this synthesized FeCl₂ solution suffered an evaporation-crystallization-drying thermic treatment procedure which efficiency evaluated with NaOH-0.05N titration was up to 98[%]. Secondly, laboratory synthesis procedure of IronIIEthoxide-Fe(OEt)₂ or FeO₂C₄H₁₀ by reflux during 150[mn] at approximately 90[°C] to 115[°C] (maximally) using the previous synthesized FeCl₂, sodium ethoxide-Na(OEt) and ethanol with pure hexane as solvent was carried out. The molar ratios (Iron/Ethanol) and (Ethanol/Hexane/Na(OEt)/Iron) were respectively (0.4775/1) and (1/2.5/0.96/0.4775) and permitted to acquire a heterogeneous phases which extraction with a washing-extracting mixed solvent; composed with Ethanol 90°-Pure Hexane-Toluene and another solvent composed only with Ethanol90°-Pure Hexane without ethanol such as the molar ratios of (Ethanol/Hexane), (Hexane/Toluene), (Ethanol/Toluene) and (Ethanol/Hexane)/Na(OEt) were respectively 1.27, 20.19, 26.55 and 14.02; followed by a crystallization procedure permitted to obtain pure IronIIEthoxide-Fe(OEt)₂ liquid phases on top and solid grey graphite fine powders with eventually the FeCl₂ representative-by-product on the bottom solution which concentrations were quantified and evaluated by a titration procedure using NaOH-0.05N and hexane as additive in titrated solution. It was noticed that the concentration of pure IronIIEthoxide-Fe(OEt)₂ in liquid phases increased from the top to the bottom between respectively 1.458E-2 [mol/L] to 1.667E-1 [mol/L]. Then, an evaporation-crystallization procedure to concentrate the previous heterogeneous phases was established and carried out in order to crystalize a large part of the IronIIEthoxide-Fe(OEt)₂ to the solid grey graphite fine powders, the mass yield quantified by the previous titration was up to 97[%]. The grey graphite fine powders was filtered and washed with a washing procedure using water and pure hexane such as (H₂O/FeCl₂) and (Hexane/H₂O) molar ratios were respectively 221 and 14 which efficacy to retain alkenes-ethylene and to extract FeCl₂ was very high respectively 99.15[%] and 97.07[%] as molars rates with 86.08[%] retention rate of Fe(OEt)₂. Finally, the washed grey graphite fine powders suffered a thermic treatment which permitted to increase its purity 99.75[%] with 75[%] as porosity evaluated with acetone.

Published in	American Journal of Applied Chemistry (Volume 9, Issue 5)
DOI	10.11648/j.ajac.20210905.11
Page(s)	123-130
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), 2024. Published by Science Publishing Group

Keywords

Ethanol-90°, Hydrochloric Acid-HCl, Hexane, IronIIchloride-FeCl₂, IronIIEthoxide-Fe(OEt)₂, Titrations, Evaporation, Crystallization

References

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[2]	CRC Handbook of Chemistry and Physics, David R. Lide, 88th edition (2007-2008). ISBN 978-0-8493-0488-0.
[3]	https://www.americanelements.com/iron-ethoxide-5058-42-4
[4]	https://pubchem.ncbi.nlm.nih.gov/compound/22476984
[5]	William L. Jolly, Modern Inorganic Chemistry, McGraw-Hill, 1984, p. 177.
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[9]	Aspen Properties Binary mixtures modeling software (calculations by Akzo Nobel Engineering ed.). Aspen Technology. 2002–2003.
[10]	É. Clapeyron, ^«Mémoire sur la puissance motrice de la chaleur^», Journal de l'École polytechnique, vol. 23,‎ 1834, p. 153-191.
[11]	R. Clausius, «Ueber die bewegende Kraft der Wärme und die Gesetze, welche sich daraus für die Wärmelehre selbst ableiten lassen» [«On the motive power of heat and the laws which can be deduced therefrom regarding the theory of heat»], Annalen der Physik, vol. 155, no 4,‎ 1850, p. 500–524 (DOI 10.1002/andp.18501550403.
[12]	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 Journal of Applied Chemistry Volume 6, Issue 1, March 2021, Pages: 6-11 Received: Mar. 25, 2021; Accepted: Apr. 12, 2021; Published: Apr. 23, 2021.
[13]	Bradley, Don C.; Mehrotra, Ram C.; Rothwell, Ian P.; Singh, A. (2001). Alkoxo and Aryloxo Derivatives of Metals. San Diego: Academic Press. ISBN 978-0-08-048832-5.
[14]	Turova, Nataliya Y.; Turevskaya, Evgeniya P.; Kessler, Vadim G.; Yanovskaya, Maria I. (2002). The Chemistry of Metal Alkoxides. Dordrecht: Kluwer Academic Publishers. ISBN 9780792375210.
[15]	Gulaim A. Seisenbaeva, Suresh Gohil, Evgeniy V. Suslova, Tatiana V. Rogova, Nataliya Y. Turova, Vadim G. Kessler “The Synthesis of Iron(III) Ethoxide Revisited: Characterization of the Metathesis Products of Iron(III) Halides and Sodium Ethoxide” Department of Chemistry Uppsala Sweden and Department of Chemistry, Moscow State University, Russia.
[16]	Friedel, C.; Crafts, J. M. (1877) "Sur une nouvelle méthode générale de synthèse d'hydrocarbures, d'acétones, etc.," Compt. Rend., 84: 1392 & 1450.
[17]	Price, C. C. (1946). "The Alkylation of Aromatic Compounds by the Friedel-Crafts Method". Org. React. 3: 1. doi: 10.1002/0471264180.or003.01. ISBN 0471264180.
[18]	Zimmermann H, Walz R (2008). "Ethylene". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi: 10.1002/14356007.a10_045.pub3. ISBN 978-3527306732.
[19]	Research and Markets. "The Ethylene Technology Report 2016 - Research and Markets". www.researchandmarkets.com. Retrieved 19 June 2016.
[20]	Rabearimihaja Phandry Nomena Ndjiva, Andry Tahina Rabeharitsara “Betacarotenes Dosage by Hydrofluoric Acid Solution and Validation of This New Process by SPC” - Chemical Process Engineering Department (E. S. P. A), Antananarivo University – Madagascar - American Journal of Applied Chemistry in Vol. 4, Issue Number 3, June 2016.
[21]	Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara, Trisodium Citrate Synthesis at Ambient Temperature Using Sodium Hydroxide Relatively in Excess and Citric Acid with Ethanol-90 as Solvent, American Journal of Applied Chemistry. Vol. 9, No. 3, 2021, pp. 83-89. doi: 10.11648/j.ajac.20210903.14.
[22]	Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara, “Trisodium Citrate Synthesis at Ambient Temperature Using Sodium Hydroxide Relatively in Excess and Citric Acid with Ethanol-90 as Solvent”, American Journal of Applied Chemistry Volume 9, Issue 3, June 2021, Pages: 83-89 Received: Jun. 6, 2021; Accepted: Jun. 18, 2021; Published: Jun. 25, 2021.

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Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara. (2021). Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt). American Journal of Applied Chemistry, 9(5), 123-130. https://doi.org/10.11648/j.ajac.20210905.11

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Nambinina Richard Randriana; Avotra Marson Randrianomenjanahary; Andry Tahina Rabeharitsara. Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt). Am. J. Appl. Chem. 2021, 9(5), 123-130. doi: 10.11648/j.ajac.20210905.11

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Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara. Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt). Am J Appl Chem. 2021;9(5):123-130. doi: 10.11648/j.ajac.20210905.11

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@article{10.11648/j.ajac.20210905.11,
  author = {Nambinina Richard Randriana and Avotra Marson Randrianomenjanahary and Andry Tahina Rabeharitsara},
  title = {Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt)},
  journal = {American Journal of Applied Chemistry},
  volume = {9},
  number = {5},
  pages = {123-130},
  doi = {10.11648/j.ajac.20210905.11},
  url = {https://doi.org/10.11648/j.ajac.20210905.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20210905.11},
  abstract = {Laboratory synthesis of IronIIchloride-FeCl2 at approximately 200[°C] to 250[°C] using hydrochloric acid-HCl-(33%) and fine iron filament (purity>99%) was done with respecting the reaction stoichiometric. A titration procedure with NaOH-0.05N was established and allowed to titrate the FeCl2 synthesized in solution. Thus, the mass yield against raw materials (Iron and HCl) was 67.22[%]. Then, this synthesized FeCl2 solution suffered an evaporation-crystallization-drying thermic treatment procedure which efficiency evaluated with NaOH-0.05N titration was up to 98[%]. Secondly, laboratory synthesis procedure of IronIIEthoxide-Fe(OEt)2 or FeO2C4H10 by reflux during 150[mn] at approximately 90[°C] to 115[°C] (maximally) using the previous synthesized FeCl2, sodium ethoxide-Na(OEt) and ethanol with pure hexane as solvent was carried out. The molar ratios (Iron/Ethanol) and (Ethanol/Hexane/Na(OEt)/Iron) were respectively (0.4775/1) and (1/2.5/0.96/0.4775) and permitted to acquire a heterogeneous phases which extraction with a washing-extracting mixed solvent; composed with Ethanol 90°-Pure Hexane-Toluene and another solvent composed only with Ethanol90°-Pure Hexane without ethanol such as the molar ratios of (Ethanol/Hexane), (Hexane/Toluene), (Ethanol/Toluene) and (Ethanol/Hexane)/Na(OEt) were respectively 1.27, 20.19, 26.55 and 14.02; followed by a crystallization procedure permitted to obtain pure IronIIEthoxide-Fe(OEt)2 liquid phases on top and solid grey graphite fine powders with eventually the FeCl2 representative-by-product on the bottom solution which concentrations were quantified and evaluated by a titration procedure using NaOH-0.05N and hexane as additive in titrated solution. It was noticed that the concentration of pure IronIIEthoxide-Fe(OEt)2 in liquid phases increased from the top to the bottom between respectively 1.458E-2 [mol/L] to 1.667E-1 [mol/L]. Then, an evaporation-crystallization procedure to concentrate the previous heterogeneous phases was established and carried out in order to crystalize a large part of the IronIIEthoxide-Fe(OEt)2 to the solid grey graphite fine powders, the mass yield quantified by the previous titration was up to 97[%]. The grey graphite fine powders was filtered and washed with a washing procedure using water and pure hexane such as (H2O/FeCl2) and (Hexane/H2O) molar ratios were respectively 221 and 14 which efficacy to retain alkenes-ethylene and to extract FeCl2 was very high respectively 99.15[%] and 97.07[%] as molars rates with 86.08[%] retention rate of Fe(OEt)2. Finally, the washed grey graphite fine powders suffered a thermic treatment which permitted to increase its purity 99.75[%] with 75[%] as porosity evaluated with acetone.},
 year = {2021}
}

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TY  - JOUR
T1  - Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt)
AU  - Nambinina Richard Randriana
AU  - Avotra Marson Randrianomenjanahary
AU  - Andry Tahina Rabeharitsara
Y1  - 2021/09/06
PY  - 2021
N1  - https://doi.org/10.11648/j.ajac.20210905.11
DO  - 10.11648/j.ajac.20210905.11
T2  - American Journal of Applied Chemistry
JF  - American Journal of Applied Chemistry
JO  - American Journal of Applied Chemistry
SP  - 123
EP  - 130
PB  - Science Publishing Group
SN  - 2330-8745
UR  - https://doi.org/10.11648/j.ajac.20210905.11
AB  - Laboratory synthesis of IronIIchloride-FeCl2 at approximately 200[°C] to 250[°C] using hydrochloric acid-HCl-(33%) and fine iron filament (purity>99%) was done with respecting the reaction stoichiometric. A titration procedure with NaOH-0.05N was established and allowed to titrate the FeCl2 synthesized in solution. Thus, the mass yield against raw materials (Iron and HCl) was 67.22[%]. Then, this synthesized FeCl2 solution suffered an evaporation-crystallization-drying thermic treatment procedure which efficiency evaluated with NaOH-0.05N titration was up to 98[%]. Secondly, laboratory synthesis procedure of IronIIEthoxide-Fe(OEt)2 or FeO2C4H10 by reflux during 150[mn] at approximately 90[°C] to 115[°C] (maximally) using the previous synthesized FeCl2, sodium ethoxide-Na(OEt) and ethanol with pure hexane as solvent was carried out. The molar ratios (Iron/Ethanol) and (Ethanol/Hexane/Na(OEt)/Iron) were respectively (0.4775/1) and (1/2.5/0.96/0.4775) and permitted to acquire a heterogeneous phases which extraction with a washing-extracting mixed solvent; composed with Ethanol 90°-Pure Hexane-Toluene and another solvent composed only with Ethanol90°-Pure Hexane without ethanol such as the molar ratios of (Ethanol/Hexane), (Hexane/Toluene), (Ethanol/Toluene) and (Ethanol/Hexane)/Na(OEt) were respectively 1.27, 20.19, 26.55 and 14.02; followed by a crystallization procedure permitted to obtain pure IronIIEthoxide-Fe(OEt)2 liquid phases on top and solid grey graphite fine powders with eventually the FeCl2 representative-by-product on the bottom solution which concentrations were quantified and evaluated by a titration procedure using NaOH-0.05N and hexane as additive in titrated solution. It was noticed that the concentration of pure IronIIEthoxide-Fe(OEt)2 in liquid phases increased from the top to the bottom between respectively 1.458E-2 [mol/L] to 1.667E-1 [mol/L]. Then, an evaporation-crystallization procedure to concentrate the previous heterogeneous phases was established and carried out in order to crystalize a large part of the IronIIEthoxide-Fe(OEt)2 to the solid grey graphite fine powders, the mass yield quantified by the previous titration was up to 97[%]. The grey graphite fine powders was filtered and washed with a washing procedure using water and pure hexane such as (H2O/FeCl2) and (Hexane/H2O) molar ratios were respectively 221 and 14 which efficacy to retain alkenes-ethylene and to extract FeCl2 was very high respectively 99.15[%] and 97.07[%] as molars rates with 86.08[%] retention rate of Fe(OEt)2. Finally, the washed grey graphite fine powders suffered a thermic treatment which permitted to increase its purity 99.75[%] with 75[%] as porosity evaluated with acetone.
VL  - 9
IS  - 5
ER  -

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Nambinina Richard Randriana

Polytechnics Engineer School Vontovorona-Chemical Process Engineering Department, Antananarivo University, Antananarivo, Madagascar
Avotra Marson Randrianomenjanahary

Polytechnics Engineer School Vontovorona-Chemical Process Engineering Department, Antananarivo University, Antananarivo, Madagascar
Andry Tahina Rabeharitsara

Polytechnics Engineer School Vontovorona-Chemical Process Engineering Department, Antananarivo University, Antananarivo, Madagascar

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Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara. (2021). Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt). American Journal of Applied Chemistry, 9(5), 123-130. https://doi.org/10.11648/j.ajac.20210905.11

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Nambinina Richard Randriana; Avotra Marson Randrianomenjanahary; Andry Tahina Rabeharitsara. Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt). Am. J. Appl. Chem. 2021, 9(5), 123-130. doi: 10.11648/j.ajac.20210905.11

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Nambinina Richard Randriana, Avotra Marson Randrianomenjanahary, Andry Tahina Rabeharitsara. Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt). Am J Appl Chem. 2021;9(5):123-130. doi: 10.11648/j.ajac.20210905.11

Copy | Download

@article{10.11648/j.ajac.20210905.11,
  author = {Nambinina Richard Randriana and Avotra Marson Randrianomenjanahary and Andry Tahina Rabeharitsara},
  title = {Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt)},
  journal = {American Journal of Applied Chemistry},
  volume = {9},
  number = {5},
  pages = {123-130},
  doi = {10.11648/j.ajac.20210905.11},
  url = {https://doi.org/10.11648/j.ajac.20210905.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20210905.11},
  abstract = {Laboratory synthesis of IronIIchloride-FeCl2 at approximately 200[°C] to 250[°C] using hydrochloric acid-HCl-(33%) and fine iron filament (purity>99%) was done with respecting the reaction stoichiometric. A titration procedure with NaOH-0.05N was established and allowed to titrate the FeCl2 synthesized in solution. Thus, the mass yield against raw materials (Iron and HCl) was 67.22[%]. Then, this synthesized FeCl2 solution suffered an evaporation-crystallization-drying thermic treatment procedure which efficiency evaluated with NaOH-0.05N titration was up to 98[%]. Secondly, laboratory synthesis procedure of IronIIEthoxide-Fe(OEt)2 or FeO2C4H10 by reflux during 150[mn] at approximately 90[°C] to 115[°C] (maximally) using the previous synthesized FeCl2, sodium ethoxide-Na(OEt) and ethanol with pure hexane as solvent was carried out. The molar ratios (Iron/Ethanol) and (Ethanol/Hexane/Na(OEt)/Iron) were respectively (0.4775/1) and (1/2.5/0.96/0.4775) and permitted to acquire a heterogeneous phases which extraction with a washing-extracting mixed solvent; composed with Ethanol 90°-Pure Hexane-Toluene and another solvent composed only with Ethanol90°-Pure Hexane without ethanol such as the molar ratios of (Ethanol/Hexane), (Hexane/Toluene), (Ethanol/Toluene) and (Ethanol/Hexane)/Na(OEt) were respectively 1.27, 20.19, 26.55 and 14.02; followed by a crystallization procedure permitted to obtain pure IronIIEthoxide-Fe(OEt)2 liquid phases on top and solid grey graphite fine powders with eventually the FeCl2 representative-by-product on the bottom solution which concentrations were quantified and evaluated by a titration procedure using NaOH-0.05N and hexane as additive in titrated solution. It was noticed that the concentration of pure IronIIEthoxide-Fe(OEt)2 in liquid phases increased from the top to the bottom between respectively 1.458E-2 [mol/L] to 1.667E-1 [mol/L]. Then, an evaporation-crystallization procedure to concentrate the previous heterogeneous phases was established and carried out in order to crystalize a large part of the IronIIEthoxide-Fe(OEt)2 to the solid grey graphite fine powders, the mass yield quantified by the previous titration was up to 97[%]. The grey graphite fine powders was filtered and washed with a washing procedure using water and pure hexane such as (H2O/FeCl2) and (Hexane/H2O) molar ratios were respectively 221 and 14 which efficacy to retain alkenes-ethylene and to extract FeCl2 was very high respectively 99.15[%] and 97.07[%] as molars rates with 86.08[%] retention rate of Fe(OEt)2. Finally, the washed grey graphite fine powders suffered a thermic treatment which permitted to increase its purity 99.75[%] with 75[%] as porosity evaluated with acetone.},
 year = {2021}
}

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TY  - JOUR
T1  - Laboratory Synthesis and Titrations of IronIIchloride-FeCl2 and IronII Ethoxide-Fe(OEt)2 Using Ethanol-90° - Hexane and Sodium Ethoxide-Na(OEt)
AU  - Nambinina Richard Randriana
AU  - Avotra Marson Randrianomenjanahary
AU  - Andry Tahina Rabeharitsara
Y1  - 2021/09/06
PY  - 2021
N1  - https://doi.org/10.11648/j.ajac.20210905.11
DO  - 10.11648/j.ajac.20210905.11
T2  - American Journal of Applied Chemistry
JF  - American Journal of Applied Chemistry
JO  - American Journal of Applied Chemistry
SP  - 123
EP  - 130
PB  - Science Publishing Group
SN  - 2330-8745
UR  - https://doi.org/10.11648/j.ajac.20210905.11
AB  - Laboratory synthesis of IronIIchloride-FeCl2 at approximately 200[°C] to 250[°C] using hydrochloric acid-HCl-(33%) and fine iron filament (purity>99%) was done with respecting the reaction stoichiometric. A titration procedure with NaOH-0.05N was established and allowed to titrate the FeCl2 synthesized in solution. Thus, the mass yield against raw materials (Iron and HCl) was 67.22[%]. Then, this synthesized FeCl2 solution suffered an evaporation-crystallization-drying thermic treatment procedure which efficiency evaluated with NaOH-0.05N titration was up to 98[%]. Secondly, laboratory synthesis procedure of IronIIEthoxide-Fe(OEt)2 or FeO2C4H10 by reflux during 150[mn] at approximately 90[°C] to 115[°C] (maximally) using the previous synthesized FeCl2, sodium ethoxide-Na(OEt) and ethanol with pure hexane as solvent was carried out. The molar ratios (Iron/Ethanol) and (Ethanol/Hexane/Na(OEt)/Iron) were respectively (0.4775/1) and (1/2.5/0.96/0.4775) and permitted to acquire a heterogeneous phases which extraction with a washing-extracting mixed solvent; composed with Ethanol 90°-Pure Hexane-Toluene and another solvent composed only with Ethanol90°-Pure Hexane without ethanol such as the molar ratios of (Ethanol/Hexane), (Hexane/Toluene), (Ethanol/Toluene) and (Ethanol/Hexane)/Na(OEt) were respectively 1.27, 20.19, 26.55 and 14.02; followed by a crystallization procedure permitted to obtain pure IronIIEthoxide-Fe(OEt)2 liquid phases on top and solid grey graphite fine powders with eventually the FeCl2 representative-by-product on the bottom solution which concentrations were quantified and evaluated by a titration procedure using NaOH-0.05N and hexane as additive in titrated solution. It was noticed that the concentration of pure IronIIEthoxide-Fe(OEt)2 in liquid phases increased from the top to the bottom between respectively 1.458E-2 [mol/L] to 1.667E-1 [mol/L]. Then, an evaporation-crystallization procedure to concentrate the previous heterogeneous phases was established and carried out in order to crystalize a large part of the IronIIEthoxide-Fe(OEt)2 to the solid grey graphite fine powders, the mass yield quantified by the previous titration was up to 97[%]. The grey graphite fine powders was filtered and washed with a washing procedure using water and pure hexane such as (H2O/FeCl2) and (Hexane/H2O) molar ratios were respectively 221 and 14 which efficacy to retain alkenes-ethylene and to extract FeCl2 was very high respectively 99.15[%] and 97.07[%] as molars rates with 86.08[%] retention rate of Fe(OEt)2. Finally, the washed grey graphite fine powders suffered a thermic treatment which permitted to increase its purity 99.75[%] with 75[%] as porosity evaluated with acetone.
VL  - 9
IS  - 5
ER  -

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