Pregled bibliografske jedinice broj: 76890
Nontoxic corrosion inhibitors for copper in sulphuric acid
Nontoxic corrosion inhibitors for copper in sulphuric acid // Corrosion and corrosion protection / Sinclair, J.D. ; Frankenthal, R.P. ; Kalman E. ; Plieth, W (ur.).
Pennington (NJ): The Electrochemical Society (ECS), 2001. str. 493-500
CROSBI ID: 76890 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Nontoxic corrosion inhibitors for copper in sulphuric acid
Autori
Stupnišek-Lisac, Ema ; Gazivoda, Anita ; Madžarac, Maria
Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni
Knjiga
Corrosion and corrosion protection
Urednik/ci
Sinclair, J.D. ; Frankenthal, R.P. ; Kalman E. ; Plieth, W
Izdavač
The Electrochemical Society (ECS)
Grad
Pennington (NJ)
Godina
2001
Raspon stranica
493-500
ISBN
1-56677-355-5
Ključne riječi
nontoxic, corrosion inhibitors, copper, imidazoles, sulphuric acid
Sažetak
The aim of this paper is to study influence of the molecular structure on the inhibiting properties of organic compounds in corrosion processes in acid media. The inhibiting efficiency of nontoxic imidazole derivatives on copper corrosion in sulphuric acid is investigated. The investigation is performed using electrochemical methods of potentiodynamic polarization as well as gravimetric measurements. The results of the investigation show that the inhibiting properties of substituted imidazoles depend on molecular structure. The best protection (93%) is obtained by adding phenyl ring to the imidazole structure. The values of standard free energies of adsorption, as calculated from the Freundlich isotherm, indicate that in the presence of sulphuric acid imidazole derivatives adsorb on copper by a physisorption-based mechanism.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
