Improvement in Corrosion Inhibition Efficiency of Molybdate-Based Inhibitors via Addition of Nitroethane and Zinc in Stimulated Cooling Water
Joint Authors
Mohammadi, Saeed
Baghaei Ravari, Fatemeh
Dadgarinezhad, Athareh
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-25
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
An investigation was conducted to improve the corrosion inhibition efficiency of molybdate-based inhibitors for mild steel which is the main construction material of cooling water systems, using nitroethane as an organic compound beside zinc.
In this study a new molybdate-based inhibitor was introduced with the composition of 60 ppm molybdate, 20 ppm nitrite, 20 ppm nitroethane, and 10 ppm zinc.
Inhibition efficiency of molybdate alone and with nitrite, nitroethane, and zinc on the uniform corrosion of mild steel in stimulated cooling water (SCW) was assessed by electrochemical techniques such as potentiodynamic polarization and electrochemical impedance (AC impedance) measurements.
Weight loss measurements were made with coupon testing specimens in the room temperature for 48 h.
Studies of electron microscopy, including scanning electron microscopy (SEM) photograph and X-ray energy dispersive spectrometry (EDS) microanalysis, were used.
The results obtained from the polarization and AC impedance curves were in agreement with those from the corrosion weight loss results.
The results indicate that the new inhibitor is as effective as molybdate alone, though at one-ninth of the concentration range of molybdate, which is economically favorable.
American Psychological Association (APA)
Mohammadi, Saeed& Baghaei Ravari, Fatemeh& Dadgarinezhad, Athareh. 2012. Improvement in Corrosion Inhibition Efficiency of Molybdate-Based Inhibitors via Addition of Nitroethane and Zinc in Stimulated Cooling Water. ISRN Corrosion،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-477786
Modern Language Association (MLA)
Mohammadi, Saeed…[et al.]. Improvement in Corrosion Inhibition Efficiency of Molybdate-Based Inhibitors via Addition of Nitroethane and Zinc in Stimulated Cooling Water. ISRN Corrosion No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-477786
American Medical Association (AMA)
Mohammadi, Saeed& Baghaei Ravari, Fatemeh& Dadgarinezhad, Athareh. Improvement in Corrosion Inhibition Efficiency of Molybdate-Based Inhibitors via Addition of Nitroethane and Zinc in Stimulated Cooling Water. ISRN Corrosion. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-477786
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477786