Publicação
Alkaloid Extract of Laurus Nobilis Leaves as Anti-oxidant and Corrosion Inhibitor for a Fe Alloy in an HCl Environment
| Resumo: | Abstract In this study, an alkaloid was extracted from LN leaves. The AE was firstly evaluated as AO, by using a DPPH solution, and comparing it with a BHT standard solution. The AE, at 200 mg/mL, showed high efficiency as AO (93%). Furthermore, it was studied as a CI for an Fe alloy in HCl, at 25 ºC, with different C (1 to 5 ppm). The AE depicted the highest IE(%) of 92.42%, at 5 ppm. T effect on IE(%), for optimal C (5 ppm), was studied at 35, 45 and 55 ºC. The results revealed that the IE(%) decreased with higher T. Additionally, kinetic parameters, such as Ea*, (H* and (S*, were calculated. |
|---|---|
| Autores principais: | AL-Saeed,Arwa H. M. |
| Outros Autores: | Al-Sawaad,Hadi Z.; AL-Alyauie,Esraa A. |
| Assunto: | AE LN AO corrosion inhibitors DPPH |
| Ano: | 2023 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Fundação para a Ciência e Tecnologia |
| Idioma: | inglês |
| Origem: | SciELO Portugal |
| Resumo: | Abstract In this study, an alkaloid was extracted from LN leaves. The AE was firstly evaluated as AO, by using a DPPH solution, and comparing it with a BHT standard solution. The AE, at 200 mg/mL, showed high efficiency as AO (93%). Furthermore, it was studied as a CI for an Fe alloy in HCl, at 25 ºC, with different C (1 to 5 ppm). The AE depicted the highest IE(%) of 92.42%, at 5 ppm. T effect on IE(%), for optimal C (5 ppm), was studied at 35, 45 and 55 ºC. The results revealed that the IE(%) decreased with higher T. Additionally, kinetic parameters, such as Ea*, (H* and (S*, were calculated. |
|---|