Hydroxamic Acid Corrosion Inhibitor for Steel in Aqueous Solution

2007 ◽  
pp. 81-88
Author(s):  
Abdulmajed Alagta ◽  
Ilona Felhősi ◽  
Erika Kálmán
Keyword(s):  
Aqueous Solution ◽  
Corrosion Inhibitor ◽  
Hydroxamic Acid ◽  
Acid Corrosion ◽  
Acid Corrosion Inhibitor

Hydroxamic Acid Corrosion Inhibitor for Steel in Aqueous Solution

2007 ◽  
Vol 537-538 ◽  
pp. 81-88 ◽  
Author(s):  
Abdulmajed Alagta ◽  
Ilona Felhősi ◽  
Erika Kálmán
Keyword(s):  
Aqueous Solution ◽  
Hydroxamic Acid ◽  
Inhibition Efficiency ◽  
Adsorption Process ◽  
Acid Corrosion ◽  
Hydrocarbon Chain ◽  
Protective Film ◽  
Compact Layer ◽  
Acid Corrosion Inhibitor ◽  
Neutral Aqueous Solution

The selected dihydroxamic acid derivatives, namely oxalyl-dihydroxamic acid (C2) and pimeloyl-1,5-di-hydroxamic acid (C7) have been synthesized and evaluated as corrosion inhibitors for carbon steel in neutral aqueous solution by potentiodynamic polarization and ac impedance methods. C2 molecule acts as good inhibitor with inhibition efficiency value reached 91%; it is well adsorbed most likely throughout the two hydrophilic groups, and forms a protective film on the metal surface. C7 has moderate inhibition efficiency probably due to the presence of long single hydrocarbon chain in the molecule, negatively affect the adsorption process. Addition of Ni2+ to C7 significantly improve the inhibition efficiency, throughout the formation of a dense compact layer of complexes between Ni2+ and C7.

scholarly journals Correction: Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative

2019 ◽  
Vol 43 (43) ◽  
pp. 17123-17124
Author(s):  
Yefei Wang ◽  
Zhen Yang ◽  
Fengtao Zhan ◽  
Zhifeng LYu ◽  
Chengyou Han ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Strong Acid ◽  
Acid Corrosion Inhibitor

Correction for ‘Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative’ by Yefei Wang et al., New J. Chem., 2018, 42, 12977–12989.

Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative

2018 ◽  
Vol 42 (15) ◽  
pp. 12977-12989 ◽  
Author(s):  
Yefei Wang ◽  
Zhen Yang ◽  
Fengtao Zhan ◽  
Zhifeng LYu ◽  
Chengyou Han ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Strong Acid ◽  
Acid Corrosion Inhibitor

Anti-corrosion inhibition was dramatically improved by transforming heterocyclic ammonium inhibitors into their dimer indolizine derivatives.

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