The corrosion inhibition and adsorption behavior of Uncaria gambir extract on mild steel in 1M HCl

Hussin, M. Hazwan; Kassim, M. Jain

doi:10.1016/j.matchemphys.2010.10.032

Cited by 237 publications

(130 citation statements)

References 31 publications

Supporting

Mentioning

127

Contrasting

Unclassified

Order By: Relevance

“…It has a considerable long age, fruitful and relatively cheap. Noni contains several compounds such as ascorbic acid, flavonoids, alkaloids (xeronine, prexeronine), and phenolic compounds (coumarins, iridoids) which can act as antioxidant compounds to protect pipes from oxygen attack and free radicals [20][21][22][23][24][25]. Moreover, it also contains anti-cancer (damnacanthal), anti-bacterial (acubin, L. asperuloside, alizarin, Antraquinon) and active substance (ascorbic acid, flavonoid).…”

Section: Introductionmentioning

confidence: 99%

The use of morinda citrifolia as a green corrosion inhibitor for low carbon steel in 3.5% NaCl solution

Kusumastuti

Pramana

Soedarsono

2017

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. The effect and mechanism of green corrosion inhibitor of Morinda Citrifolia (Noni) toward low carbon steel material has been researched. The general background is to develop the cheap and eco-friendly corrosion inhibitor based on components taken from tropical plants that grow +in Indonesia. This research aims to determine the effectiveness of the use of the extracts of noni as green corrosion inhibitor of carbon steel material in aggressive environment. The medium applied for this experiment is 3.5% natrium chloride solution. The variation of the concentration and immersion time duration has been applied as the experimental parameters. All the work was done at room temperature. The corrosion rate was measured by electrochemical polarization method with CMS 600-Gamry instruments and weight loss. The adsorption of inhibitor into the metal surface, which induced bonding formation after immersion was observed by using FTIR method. Inhibition mechanism was observed by polarization curves and fitted by the Langmuir adsorption models. The experimental results show that the higher concentration of inhibitor increasing the inhibition effect. The optimum inhibition is obtained at 3 ppm noni fruit extract, after immersion for about 288 hours. The corrosion rates obtained was 1.385 mpy, with the inhibitor efficiency of 76.92%. The monolayer film is formed coating the surface material as a result of mixed type corrosion inhibitor behavior of Noni. It can be concluded that this green inhibitor is effective to be used for low carbon steel material.

show abstract

Section: Introductionmentioning

confidence: 99%

The use of morinda citrifolia as a green corrosion inhibitor for low carbon steel in 3.5% NaCl solution

Kusumastuti

Pramana

Soedarsono

2017

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…Phenolic compounds of citrus peel exhibit anti-carcinogenic, anti-inflammatory, antioxidant and anti-atherogenic properties [13] due to the presence of phenolic acids and flavonoids [3] . Antioxidants capacity of phenols could have promoting application in chemical engineering such as corrosion inhibitor in shipbuilding materials, in crude oil refining industry, in the acid pickling, industrial cleaning, descaling acid, and also in the petrochemical processes [14] . However, its extraction constitutes a difficult step because of their sensitivity to extraction conditions such a temperature, light or food matrix, which could lead to their degradation and alteration of their antioxidant activities [15] .…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Efficiency of Different Extraction Methods on Antioxidants of Maltease Orange Peel

Boudhrioua¹

2016

IJFNS

View full text Add to dashboard Cite

The effect of conventional solvent extraction, CSE, ultrasound assisted extraction, UAE, microwave assisted extraction, MAE and supercritical CO 2 extraction, SC-CO 2 on the total phenols content, total flavonoids, individual flavonoids and antioxidant activity of orange peel were compared. Neohesperidin (from 0.624 ± 0.013 for SC-CO 2 extraction to 1.045 ± 0.001 g100 g orange peel powder for MAE) and hesperidin (from 0.407 ± 0.008 for SC-CO 2 extraction to 0.836 ± 0.029 g/100 g orange peel powder for UAE) are the major flavonoids (80% of total flavonoids by MAE and 87% by CSE) of orange peel whatever the used extraction method. The method giving the highest total phenol and flavonoid contents is microwave assisted extraction (2.363 ± 0.014 g GAE/100g orange peel powder), followed by ultrasound assisted extraction, conventional solvent extraction, and supercritical CO 2 extraction. However, antioxidant activity (DPPH method) cannot be correlated to TPC, TFC or individual flavonoids. Orange peel extracted by CSE (ethanol (80%), m/v: 5 g:50 ml, 30 min, 35°C, mechanical stirring at darkness, 3 successive extractions) presents the higher radical scavenging capacity compared to the other extracts obtained by MAE (Ethanol (80%), m/v: 5 g: 50 ml, 10s, 35°C, 170 W, 3 successive extractions) and UAE (ethanol (80%), m/v: 5g:50 ml, 30 min, 35°C, magnetic stirring at darkness, 3 successive extractions, 125W), SC-CO 2 extraction (ethanol (80%), m/v:5 g:50 ml, 30 min, 35°C, 22 MPa, 3 successive extractions). Besides, no additivity on the antioxidant activity is found with the DPPH method.

show abstract

“…Further with increase in concentration of gum exudates of Azadirachta indica, inhibition efficiency increases. 60 ppm gum exudates of Azadirachta indica was found as optimum concentration which shows maximum efficiency where optimal adsorption of gum exudates of Azadirachta indica on the metal took place [24] and thus reduction in area open for acid attack is attained. However above 60 ppm, the corrosion rate is found almost same with slight change which might be due to competitive adsorption [25].…”

Section: Weight Loss Measurementsmentioning

confidence: 95%

Mitigation of Acid Corrosion on Carbon Steel by Naturally Occurring Gum Exudate

Manickam¹,

Dheenadhayalan²,

Jaganathan³

2018

Asian J. Chem.

View full text Add to dashboard Cite

Gum exudates of Azadirachta indica (GAI) was tested as corrosion inhibitor for carbon steel in 1 N H2SO4 by means of different techniques viz., gravimetric experiments, electrochemical polarization and impedance studies, IR and SEM techniques. Nature of adsorption is reported and it follows Langmuir isotherm. Polarization method indicated mixed mode behaviour of the inhibitor. AC impedance studies supported mitigation effects of gum exudates of Azadirachta indica. IR and SEM studies reveal the protection of carbon steel through adsorption.

show abstract

The corrosion inhibition and adsorption behavior of Uncaria gambir extract on mild steel in 1M HCl

Cited by 237 publications

References 31 publications

The use of morinda citrifolia as a green corrosion inhibitor for low carbon steel in 3.5% NaCl solution

The use of morinda citrifolia as a green corrosion inhibitor for low carbon steel in 3.5% NaCl solution

Comparison of the Efficiency of Different Extraction Methods on Antioxidants of Maltease Orange Peel

Mitigation of Acid Corrosion on Carbon Steel by Naturally Occurring Gum Exudate

Contact Info

Product

Resources

About