UAE Neem Extract as a Corrosion Inhibitor for Carbon Steel in HCl Solution

Nahlé, Ayssar; Abu-Abdoun, Ideisan I.; Abdel‐Rahman, Ibrahim; Al‐Khayat, Maysoon

doi:10.1155/2010/460154

Cited by 33 publications

(17 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results were also obtained from the Arrhenius plot (Fig.2). Higher values of Ea in the presence of inhibitor compared to blank system are generally consistent with a physisorption 17-20 , while unchanged or lower values of Ea in inhibited solution suggest charge sharing or transfer from the inhibitor to the metal surface to form coordinate covalent type bond (chemisorption) 21 . However the increase in the activation energies in inhibited system compare to uninhibited system indicates that the inhibitors were performs as a good inhibitor at ordinary temperature with considerable loss in % I.E.…”

Section: (3)mentioning

confidence: 54%

The Study of Inhibitory Effect of Some Amino acids on Corrosion of 60/40 Brass in Nitric Acid

2018

IJGHC

View full text Add to dashboard Cite

Section: (3)mentioning

confidence: 54%

The Study of Inhibitory Effect of Some Amino acids on Corrosion of 60/40 Brass in Nitric Acid

2018

IJGHC

View full text Add to dashboard Cite

“…It demonstrates that the strong molecule interaction has occurred between adsorption particles and mild steel surface, where the interaction increases with the raise of added inhibitor concentration [60].…”

Section: Analysis Of Adsorption Isothermmentioning

confidence: 90%

Theobroma cacao Peel Extract as the Eco-Friendly Corrosion Inhibitor for Mild Steel

Yetri¹,

Gunawarman²,

Emriadi³

et al. 2018

Corrosion Inhibitors, Principles and Recent Applications

View full text Add to dashboard Cite

Corrosion control for metals has technical, economical, environmental, and aesthetical importance. The use of corrosion inhibitors from natural product is one of the best ways to slow the rate of corrosion of metals and alloys. The use of extract inhibitors from natural product is the best alternative because it does not contain heavy metals and is nontoxic, environmentally friendly, biodegradable, easy to obtain, inexpensive, and available in large quantities. The organic compounds contained in the extracts of natural products such as tannins, amino acids, phenolics, and alkaloids contain heteroatomic groups, which can inhibit corrosion rate and are interesting to study. With the development of science and technology, many methods are used to protect the corrosion, such as electroplating and coating, and organic inhibitor shows real promise such as Theobroma cacao peel extract. Although substantial research has been devoted to corrosion inhibition by plant extracts, reports on the detailed mechanisms of the adsorption process and identification of the active ingredient are still scarce. The addition of polar extract of cacao peel into a solution of HCl 1.5 M is very effective to reduce the attack surface corrosion on mild steel and can maintain its mechanical properties. This chapter consciously restricts itself mainly to plant materials, especially Theobroma cacao peel extract, as green corrosion inhibitors.

show abstract

“…Peningkatan ini disebabkan oleh penambahan ekstrak mahkota dewa ke dalam medium menyebabkan energi yang diperlukan dalam proses korosi akan semakin besar. Dari nilai Ea tersebut dapat diketahui pengaruh ekstrak daun mahkota dewa sebagai inhibitor korosi [10] . Proses adsorbsi dapat dijelaskan dari nilai derajat penutupan permukaan (θ) dengan adanya penambahan ekstrak daun mahkota dewa dalam medium terhadap permukaan baja.…”

Section: Gambar 5 Kurva Archenius 1/t Vs Log V ( = Blanko = Ekstrakunclassified

EKSTRAK METANOL DARI DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI INHIBITOR KOROSI BAJA DALAM ASAM KLORIDA

Rahmi¹,

Emriadi²,

Alif³

2014

J.Ris.Kim.

View full text Add to dashboard Cite

Extract of Phaleria macrocarpa leaves have been studied as corrosion inhibitor for mild steel of hydrochloric acid solution 2.0 N. The efficiency of inhibition was evaluated by gasometric method and electrochemical analysis. The temperature and concentration effects on the inhibitors performance were also investigated. The result obtained showed that the extract is one of promising candidate as an inhibitors for the corrotions of mild steel in HCl media, inhibition efficiency increase as the extract concentration is evaluated. The activation energy (Ea) increase with the addition of the extract. Where inhibition of extract on the steel surface obey modified Langmuir isotherm equation. Potentiodynamic polarization curve indicated the Phaleria macrocarpa leaves extract play role as the anodic type inhibitor. Keywords : Corrosion inhibition, mild steel, Phaleria macrocarpa, hydrochloric acid. PENDAHULUANDalam proses industri, biasanya digunakan larutan asam untuk membersihkan kerak dan karat yang melekat di permukaan baja. Asam yang banyak digunakan adalah asam klorida, akan tetapi proses ini dapat menyebabkan campuran dari baja tersebut terkorosi sehingga ketahanannya berkurang [1] . Penambahan inhibitor ke dalam medium korosif merupakan salah satu metode yang digunakan untuk melindungi permukaan baja dan untuk menurunkan laju korosi yang terjadi. Inhibitor dapat menghalangi ion-ion agresif dengan membentuk lapisan yang teradsorbsi pada permukaaan baja [2] .Pada umumnya, inhibitor korosi berasal dari senyawa organik dan anorganik yang mengandung gugus yang memiliki pasangan elektron bebas, seperti: nitrit, kromat, fospat, urea, fenilalanin, imidazolin, dan senyawasenyawa amin [3] . Inhibitor tersebut sebagian besar berasal dari senyawa sintetis yang bersifat toksik dan tidak ramah lingkungan. Oleh karena itu, banyak peneliti yang mengembangkan penggunaan ekstrak tumbuhtumbuhan sebagai inhibitor terutama untuk baja dalam medium asam, seperti: daun kemangi [4] , lidah buaya [5] , daun mint, daun kopi, mangga, jeruk, serikaya, daun tembakau, dan kentang [6] .Untuk ikut berkontribusi dalam pengembangan inhibitor korosi dari bahan-bahan alami, maka peneliti menggunakan ekstrak dari daun mahkota dewa (Phaleria macrocarpa ) dengan tujuan mengetahui keefektifan inhibisi ekstrak pada korosi baja dalam medium asam. Sebelumnya, tumbuhan mahkota dewa hanya dipakai dalam obat-obatan tradisional. Dengan penggunaannya sebagai inhibitor korosi

show abstract

UAE Neem Extract as a Corrosion Inhibitor for Carbon Steel in HCl Solution

Cited by 33 publications

References 14 publications

The Study of Inhibitory Effect of Some Amino acids on Corrosion of 60/40 Brass in Nitric Acid

The Study of Inhibitory Effect of Some Amino acids on Corrosion of 60/40 Brass in Nitric Acid

Theobroma cacao Peel Extract as the Eco-Friendly Corrosion Inhibitor for Mild Steel

EKSTRAK METANOL DARI DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI INHIBITOR KOROSI BAJA DALAM ASAM KLORIDA

Contact Info

Product

Resources

About