An Investigation of Carboxylic Acids as Corrosion Inhibitors in Engine Coolant

2009 ◽  
pp. 44-44-19 ◽  
Author(s):  
WC Mercer
Keyword(s):  
Carboxylic Acids ◽  
Corrosion Inhibitors ◽  
Engine Coolant

Salts of Sulfated Oleic Acid Amides as Acid Corrosion Inhibitors

2021 ◽  
Vol 625 (3) ◽  
pp. 36-38
Author(s):  
E. K. Aminova ◽  
◽  
V. V. Fomina ◽  
Keyword(s):  
Oleic Acid ◽  
Sulfuric Acid ◽  
Hydrochloric Acid ◽  
Aqueous Solutions ◽  
Carboxylic Acids ◽  
Ammonium Salt ◽  
Dilute Hydrochloric Acid ◽  
Corrosion Inhibitors ◽  
Acid Corrosion ◽  
Protective Ability

This work is a continuation in a series of studies on the preparation of acid corrosion inhibitors based on carboxylic acids. A method of synthesis of acid corrosion inhibitors based on oleic acid amides has been developed. Several syntheses have been carried out to increase its inhibitory properties. The substances were obtained in several stages. At the first stage, amino alcohols were added to the ОA, then the resulting compounds were sulfonated with sulfuric acid. To expand the field of various inhibitors, reactions with bases are produced. As a result, salts of sulfated amides of oleic acid synthesized with amino nitrates, sulfuric acid and aqueous solutions of bases were formed. To establish the effectiveness of the compounds obtained, the protective ability in dilute hydrochloric acid was evaluated. It is established that some of the obtained substances exhibit the corresponding properties of inhibitors. In this case, the most effective is the ammonium salt of sulfated diethanolamide oleic acid.

Carboxylic acids as efficient corrosion inhibitors of aluminium alloys in alkaline media

2018 ◽  
Vol 289 ◽  
pp. 175-192 ◽  
Author(s):  
Joanna Wysocka ◽  
Mateusz Cieslik ◽  
Stefan Krakowiak ◽  
Jacek Ryl
Keyword(s):  
Carboxylic Acids ◽  
Aluminium Alloys ◽  
Corrosion Inhibitors ◽  
Alkaline Media

Carboxylic acids as corrosion inhibitors for aluminium in acidic and alkaline solutions

1990 ◽  
Vol 37 (3) ◽  
pp. 4-8 ◽  
Author(s):  
M.N. Moussa ◽  
M.M. El‐Tagoury ◽  
A.A. Radi ◽  
S.M. Hassan
Keyword(s):  
Carboxylic Acids ◽  
Corrosion Inhibitors ◽  
Alkaline Solutions

Production of biofuel precursor molecules (mono-carboxylic acids, biohydrogen) from apple and pumpkin waste through anaerobic fermentation process

2021 ◽  
Author(s):  
Venkateswer Reddy Motakatla ◽  
Young-Cheol Chang
Keyword(s):  
Fatty Acids ◽  
Carboxylic Acids ◽  
Fermentation Process ◽  
Corrosion Inhibitors ◽  
Anaerobic Fermentation ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Precursor Molecules ◽  
Chain Fatty Acids

Medium chain fatty acids (MCFA) such as caproic, heptanoic, and caprylic acids are mono-carboxylic acids, which can be used as precursor molecules to synthesize biodiesel, bioplastics, antimicrobials, and corrosion inhibitors....

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