Inhibition of Mild Steel Corrosion Using Plectranthus tenuiflorus (Shara) Plant as Safe and Green Inhibitor in Acidic solutions

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Dr. Aisha M. Al-Turkustani
Dr. Aisha M. Al-Turkustani
σ
Nabeeh M. Al-Marhabi
Nabeeh M. Al-Marhabi
α King Abdulaziz University King Abdulaziz University

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Inhibition of Mild Steel Corrosion Using Plectranthus tenuiflorus (Shara) Plant as Safe and Green Inhibitor in Acidic solutions

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Abstract

Plectranthus tenuiflorus (Shara) plant was investigated as safe (green) inhibitor on the corrosion of mild steel in 2.0 M H 2 SO 4 solution using weight loss and hydrogen gas evolution technique. The results showed that Shara plant aqueous extract is good inhibitor for mild steel in this medium. The inhibition efficiency increases with the inhibitor concentration and decreases with rising temperature. The inhibition is attributed to adsorption of the inhibitor molecules on mild steel surface. Adsorption characteristics of the aqueous extract of Shara plant were approximated by Langmuir adsorption isotherm. Effect of temperature is studied in the range (30-70) º C and determination of activation parameters is also discussed.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Dr. Aisha M. Al-Turkustani. 1969. \u201cInhibition of Mild Steel Corrosion Using Plectranthus tenuiflorus (Shara) Plant as Safe and Green Inhibitor in Acidic solutions\u201d. Global Journal of Science Frontier Research - B: Chemistry GJSFR-B Volume 12 (GJSFR Volume 12 Issue B1): .

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GJSFR Volume 12 Issue B1
Pg. 73- 84
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Crossref Journal DOI 10.17406/GJSFR

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Plectranthus tenuiflorus (Shara) plant was investigated as safe (green) inhibitor on the corrosion of mild steel in 2.0 M H 2 SO 4 solution using weight loss and hydrogen gas evolution technique. The results showed that Shara plant aqueous extract is good inhibitor for mild steel in this medium. The inhibition efficiency increases with the inhibitor concentration and decreases with rising temperature. The inhibition is attributed to adsorption of the inhibitor molecules on mild steel surface. Adsorption characteristics of the aqueous extract of Shara plant were approximated by Langmuir adsorption isotherm. Effect of temperature is studied in the range (30-70) º C and determination of activation parameters is also discussed.

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Inhibition of Mild Steel Corrosion Using Plectranthus tenuiflorus (Shara) Plant as Safe and Green Inhibitor in Acidic solutions

Dr. Aisha M. Al-Turkustani
Dr. Aisha M. Al-Turkustani King Abdulaziz University
Nabeeh M. Al-Marhabi
Nabeeh M. Al-Marhabi

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