Table 3 Plants as corrosion inhibitors against tin corrosion
Study Conducted | Material | Solution | Effect of temperature on percentage inhibition efficiency | Effect of concentration on percentage inhibition efficiency | Methods | Adsorption | Reference |
|---|---|---|---|---|---|---|---|
It is reported that lysine, arginine, methionine, cysteine were good corrosion inhibitors in citric acid solution by the potentiodynamic methods. Nitron-containing acids show 70 % inhibition as compared with sulfur-containing acids. All four acids act as a mixed-type inhibitor and show their inhibition effect on tin corrosion and obeyed Temkin adsorption isotherm. | Amino acids (lysine, arginine, methionine, and cysteine) | Citric acid | Decrease with rise in temperature | Increase but decrease after optimum concentration | Potentiodynamic polarization (PDP) | Temkin adsorption | Quraishi et al. 2004 |
Alanine, glycine, glutamic acid, and histidine were used as environmentally safe inhibitors for the tin dissolution process | Amino acids (glycine) | Tartaric acid | Decrease | Increase | Weight loss, SEM, and EIS | Freundlich isotherm | El-Sherif Rabab and Badawy Waheed 2011 |
Different varieties of holy basil, viz., Ocimum basilicum (EB), Ocimum cannum (EC), and Ocimum sanctum (ES) reported as corrosion inhibitors for tin in HNO3 solution by the use of weight loss techniques. Obtained results show that inhibition efficiency increase with inhibitor concentration. Followed Langmuir adsorption isotherm | The leaves and stem extract of different varieties of holy basil, viz., O. basilicum (EB), O. cannum (EC), and O. sanctum (ES) | HNO3 | – | Increase | Weight loss technique | Langmuir | Kumpawat et al. 2012 |