scholarly journals Study of PlantCordia Dichotomaas Green Corrosion Inhibitor for Mild Steel in Different Acid Media

2011 ◽  
Vol 8 (3) ◽  
pp. 1200-1205 ◽  
Author(s):  
R. Khandelwal ◽  
S. K. Arora ◽  
S. P. Mathur

The corrosion inhibition of mild steel using extracts ofCordia dichotomain different acid media was investigated by mass loss and thermometric methods. The experiments were carried out at 299±0.2 K in presence of different concentrations of dry fruit, leaves and stem extracts ofCordia dichotoma. The results reveal that the alcoholic extracts ofCordia dichotomais a better corrosion inhibitor than that of toxic chemicals. The fruit extract is more potent than leaves and stem extracts to inhibit the corrosion rate. The study seeks to investigate the possibility of using extracts ofCordia dichotomaas a green corrosion inhibitor for mild steel.

2020 ◽  
Vol 49 (1) ◽  
pp. 63-70
Author(s):  
Bhuvaneshwari Durvas Seshian ◽  
Bothi Raja Pandian ◽  
Umapathi Durai

Purpose The purpose of this study is to develop green/natural corrosion inhibitors. Adina cordifolia leaves extract (ACLE) was screened for its corrosion inhibition potential for mild steel (MS) corrosion in 0.5 M H2SO4 medium. Design/methodology/approach Adina cordifolia (AC) leaves were subjected to cold ethanol extraction and concentrated after refluxed with double distilled water. The resultant concentrate was screened for corrosion inhibition studies using sequence of standard corrosion monitoring techniques, namely, gravimetric analysis, electrochemical studies and scanning electron microscopy (SEM). Findings Gravimetric analysis provided evidence that the prepared ACLE showed dose dependent corrosion inhibition; impedance study revealed that the ACLE increases the charge transfer resistance and decreases double layer capacitance while polarization curves indicated that ACLE acts as a mixed-type inhibitor. Further studies over MS surface/test solutions through SEM and Fourier-Transform Infrared spectroscopy evident the formation of ACLE protective film protects MS. Practical implications AC’s methanol extract developed in this work can be used as a green corrosion inhibitor over industrial applications. Originality/value For the first time, AC leaves were tested as corrosion inhibitors for MS corrosion in 0.5 M H2SO4 medium. The results evidenced that ACLE will be a promising corrosion inhibitor, which could be usable in industries as a green corrosion inhibitor.


RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61170-61178 ◽  
Author(s):  
Pialee Roy ◽  
Tarunesh Maji ◽  
Sukalpa Dey ◽  
Dipankar Sukul

The adsorption behavior and corrosion inhibition potentiality of gluten hydrolysate towards mild steel in 1 M HCl is investigated employing both electrochemical and weight loss techniques.


Sign in / Sign up

Export Citation Format

Share Document