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Effect of Azadirachta Indica (Neem) Leaf Extract on the Corrosion of Medium Carbon Steel in Sulphuric Acid

Received: Mar. 20, 2022    Accepted: Apr. 07, 2022    Published: Apr. 20, 2022
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Abstract

Using gravimetric technique, the inhibitory properties of Azadiracta Indica leaf extract for medium carbon steel corrosion were investigated, and inhibition efficiency was calculated. The leaves were gathered and dried before being pulverized to micron size for gravimetric analysis. The leaves were extracted using the reflux ethanol extraction method, and the weight of the leaf removed was calculated. The quantities for various concentrations of the extract were also calculated and applied to the acidic medium, where the medium carbon steel coupons were dipped at four hours intervals for a total of 20 hours. The inhibition efficiency was calculated using the weight loss values for each metal coupon. Weight loss (from 0.1395g to 0.0135g) and corrosion rate (from 0.9700 mm/yr. to 0.1878 mm/yr.) both decreased as the content of the plant extract increased (from 0.0g/L to 0.5g/L). The gravimetric method revealed that Azadiracta Indica leaves extract is an excellent medium carbon steel corrosion inhibitor, with inhibition efficiency increasing from 41 percent to 86 percent as the inhibitor concentration increased. Plant extracts are an excellent corrosion inhibitor due to their availability, biodegradability, low cost, and lack of toxicity to humans and the environment. This study found that Azadiracta Indica leaf extracts, when used in the proper concentration, can extend the service life of medium `carbon steel.

DOI 10.11648/j.rd.20220302.15
Published in Research & Development ( Volume 3, Issue 2, June 2022 )
Page(s) 99-105
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

Corrosion, Passivation, Reflux, Gravimetric, Inhibition

References
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[3] Chen, T. L., Kim, H., Pan, S. Y., Tseng, P. C., Lin, Y. P., & Chiang, P. C. (2020). Implementation of green chemistry principles in circular economy system towards sustainable development goals: Challenges and perspectives. Science of the Total Environment, 716, 136998.
[4] El-Haddad M. N. (2013). Chitosan as a Green Inhibitor for Copper Corrosion in Acidic Medium. International Journal of Biological Macromolecules. 55, 142–149.
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Cite This Article
  • APA Style

    Alexander Nwachukwu Okpala, Ezenwa Alfred Ogbonnaya, Yusuf Bamidele Waidi. (2022). Effect of Azadirachta Indica (Neem) Leaf Extract on the Corrosion of Medium Carbon Steel in Sulphuric Acid. Research & Development, 3(2), 99-105. https://doi.org/10.11648/j.rd.20220302.15

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    ACS Style

    Alexander Nwachukwu Okpala; Ezenwa Alfred Ogbonnaya; Yusuf Bamidele Waidi. Effect of Azadirachta Indica (Neem) Leaf Extract on the Corrosion of Medium Carbon Steel in Sulphuric Acid. Res. Dev. 2022, 3(2), 99-105. doi: 10.11648/j.rd.20220302.15

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    AMA Style

    Alexander Nwachukwu Okpala, Ezenwa Alfred Ogbonnaya, Yusuf Bamidele Waidi. Effect of Azadirachta Indica (Neem) Leaf Extract on the Corrosion of Medium Carbon Steel in Sulphuric Acid. Res Dev. 2022;3(2):99-105. doi: 10.11648/j.rd.20220302.15

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  • @article{10.11648/j.rd.20220302.15,
      author = {Alexander Nwachukwu Okpala and Ezenwa Alfred Ogbonnaya and Yusuf Bamidele Waidi},
      title = {Effect of Azadirachta Indica (Neem) Leaf Extract on the Corrosion of Medium Carbon Steel in Sulphuric Acid},
      journal = {Research & Development},
      volume = {3},
      number = {2},
      pages = {99-105},
      doi = {10.11648/j.rd.20220302.15},
      url = {https://doi.org/10.11648/j.rd.20220302.15},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.rd.20220302.15},
      abstract = {Using gravimetric technique, the inhibitory properties of Azadiracta Indica leaf extract for medium carbon steel corrosion were investigated, and inhibition efficiency was calculated. The leaves were gathered and dried before being pulverized to micron size for gravimetric analysis. The leaves were extracted using the reflux ethanol extraction method, and the weight of the leaf removed was calculated. The quantities for various concentrations of the extract were also calculated and applied to the acidic medium, where the medium carbon steel coupons were dipped at four hours intervals for a total of 20 hours. The inhibition efficiency was calculated using the weight loss values for each metal coupon. Weight loss (from 0.1395g to 0.0135g) and corrosion rate (from 0.9700 mm/yr. to 0.1878 mm/yr.) both decreased as the content of the plant extract increased (from 0.0g/L to 0.5g/L). The gravimetric method revealed that Azadiracta Indica leaves extract is an excellent medium carbon steel corrosion inhibitor, with inhibition efficiency increasing from 41 percent to 86 percent as the inhibitor concentration increased. Plant extracts are an excellent corrosion inhibitor due to their availability, biodegradability, low cost, and lack of toxicity to humans and the environment. This study found that Azadiracta Indica leaf extracts, when used in the proper concentration, can extend the service life of medium `carbon steel.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Effect of Azadirachta Indica (Neem) Leaf Extract on the Corrosion of Medium Carbon Steel in Sulphuric Acid
    AU  - Alexander Nwachukwu Okpala
    AU  - Ezenwa Alfred Ogbonnaya
    AU  - Yusuf Bamidele Waidi
    Y1  - 2022/04/20
    PY  - 2022
    N1  - https://doi.org/10.11648/j.rd.20220302.15
    DO  - 10.11648/j.rd.20220302.15
    T2  - Research & Development
    JF  - Research & Development
    JO  - Research & Development
    SP  - 99
    EP  - 105
    PB  - Science Publishing Group
    SN  - 2994-7057
    UR  - https://doi.org/10.11648/j.rd.20220302.15
    AB  - Using gravimetric technique, the inhibitory properties of Azadiracta Indica leaf extract for medium carbon steel corrosion were investigated, and inhibition efficiency was calculated. The leaves were gathered and dried before being pulverized to micron size for gravimetric analysis. The leaves were extracted using the reflux ethanol extraction method, and the weight of the leaf removed was calculated. The quantities for various concentrations of the extract were also calculated and applied to the acidic medium, where the medium carbon steel coupons were dipped at four hours intervals for a total of 20 hours. The inhibition efficiency was calculated using the weight loss values for each metal coupon. Weight loss (from 0.1395g to 0.0135g) and corrosion rate (from 0.9700 mm/yr. to 0.1878 mm/yr.) both decreased as the content of the plant extract increased (from 0.0g/L to 0.5g/L). The gravimetric method revealed that Azadiracta Indica leaves extract is an excellent medium carbon steel corrosion inhibitor, with inhibition efficiency increasing from 41 percent to 86 percent as the inhibitor concentration increased. Plant extracts are an excellent corrosion inhibitor due to their availability, biodegradability, low cost, and lack of toxicity to humans and the environment. This study found that Azadiracta Indica leaf extracts, when used in the proper concentration, can extend the service life of medium `carbon steel.
    VL  - 3
    IS  - 2
    ER  - 

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Author Information
  • Department of Mechanical Engineering, Niger Delta University, Amasoma, Nigeria

  • Department of Mechanical Engineering, Niger Delta University, Amasoma, Nigeria

  • Department of Mechanical Engineering, Niger Delta University, Amasoma, Nigeria

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