An evaluation of efficiency of phenylenediamines as corrosion inhibitors for ASTM-A-179 steel in 1.0 N hydrochloric acid at room temperature

 
 
 
 

An evaluation of efficiency of phenylenediamines as corrosion inhibitors for ASTM-A-179 steel in 1.0 N hydrochloric acid at room temperature

Show simple item record


dc.contributor.advisor Baloun, Calvin H. en_US
dc.contributor.author Al-Zubail, Saleh Abdullah en_US
dc.date.accessioned 2008-07-08T18:09:21Z
dc.date.available 2008-07-08T18:09:21Z
dc.date.created 1987 en_US
dc.date.issued 2008-07-08T18:09:21Z
dc.identifier.uri http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1183039807 en_US
dc.identifier.uri http://hdl.handle.net/2374.OX/15171
dc.description The efficiencies of o-, m-, p-phenylenediamine as corrosion inhibitors for ASTM-A-179 steel in 1.0 N HC1 at room temperature are investigated and the possibility that these efficiencies depend on the amine groups' (NH 2)position on the benzene ring is explored. One of the more and the least effective inhibitors are tested in galvanic corrosion cells of ASTM-A-179 steel and type 405 stainless steel. Two laboratory experimental methods, which are the electrochemical and weight loss methods, were used in accordance with ASTM G 1-81, ASTM G 3-74, ASTM G 5-82, ASTM G 46-76, and ASTM G 59-78 standards. It is found that the efficiency of o-phenylenediamine ranges from 25% to 80% inhibition by using a concentration range of 10 ppm to 200 ppm. Similarly, the efficiency of m-phenylenediamine ranges from 65% to 80% by using a concentration range of 10 ppm to 200 ppm. This is a clear indication that the efficiency of this inhibitor does not depend strongly on its concentration, making it a good practical inhibitor. The efficiency of p-phenylenediamine range from 5% to 30% by using a concentration range of 100 ppm to 200 ppm. This inhibitor is harmful to ASTM-A-179 when the concentration is below 100 ppm. It is found that the efficiencies of phenylenediamines depend on the amine groups' (NH 2) position on the benzene ring and the efficiency of these inhibitors decreases in the order of m > o > p. It is found that o-phenylenediamine has a higher efficiency than that of p-phenylenediamine in preventing the corrosion of ASTM-A-179 steel while it is in the galvanic cells with type 405 stainless steel. en_US
dc.format application/pdf en_US
dc.format 121p. en_US
dc.rights unrestricted en_US
dc.rights Copyright and permissions information available at the source archive en_US
dc.subject Phenylenediamines en_US
dc.subject Corrosion Inhibitors en_US
dc.subject ASTM-A-179 Steel en_US
dc.subject 1.0 N Hydrochloric Acid en_US
dc.subject Room Temperature en_US
dc.title An evaluation of efficiency of phenylenediamines as corrosion inhibitors for ASTM-A-179 steel in 1.0 N hydrochloric acid at room temperature en_US
dc.type Electronic Thesis or Dissertation en_US
dc.degree.name MS en_US
dc.degree.level masters en_US
dc.degree.discipline Chemical Engineering (Engineering) en_US
dc.degree.grantor Ohio University en_US
dc.contributor.publisher Ohio University / OhioLINK en_US

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record