Inhibition of corrosion of mild steel in well water by an aqueous extract of soapnut (Sapindus Trifoliatus)

Susai Santhammal Rajendran; Antony John Amalraj

doi:10.5937/zasmat2104277P

Autori

Susai Santhammal Rajendran St. Antony's College of Arts and Sciences for Women Thamaraipady, Corrosion Research Centre, PG and Research Department of Chemistry, Tamil Nadu, India Autor
Antony John Amalraj Periyar EVR Government College, PG and Research Department of Chemistry, Trichy, Tamil Nadu, Inida Autor

DOI:

https://doi.org/10.5937/zasmat2104277P

Ključne reči:

Sapindus Trifoliatus, inhibitor korozije, meki čelik, bunarska voda, dinamičko rasejanje svetlosti, tvrdoća po Vikersu

Apstrakt

Efikasnost inhibicije vodenog ekstrakta sapuna (Sapindus Trifoliatus) i Zn2+ u kontroli korozije mekog čelika u bunarsko vodi na sobno temperaturi je procenjena rimenom metode gubitka težine, studije olarizacije i spektra impedanse naizmenične struje. Takođe, korišćeno je dinamičko rasejanje svetlosti i tvrdoća po Vikersu. Metoda gubitka težine otkriva da formulaci a koja se sastoji od 10 ml ekstrakta sapuna i 50 ppm Zn2+ ima 97% efikasnost inhibicije u kontroli korozije mekog čelika uronjenog u vodu iz bunara. Parametri sinergizma sugerišu da postoji sinergistički efekat između ekstrakta sapuna i Zn2+. Izoterma adsorpcije metalne površine je određena Langmuir adsorciono izotermi. Studija olarizacije otkriva da inhibitorni sistem funkcioniše kao anodni tip inhibitora. Spektri imedanse naizmenične struje otvrđu u zaštitni film formiran na površini metala. Studija dinamičkog rasejanja svetlosti ( LS) otkriva da je površina u nanometarsko skali. Vikersova tvrdoća metalne površine je povećana u sistemu inhibitora.

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