Paraformaldehyde as a corrosion inhibitor for carbon steel in (%15) HCl

doi:10.52716/jprs.v11i2.494

Paper

Paraformaldehyde as a corrosion inhibitor for carbon steel in (%15) HCl

Published Jun 20, 2021 · G. B. Yaqoob

Journal of Petroleum Research and Studies

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Abstract

The effect of paraformaldehyde in the solution of 15% HCL as an inhibitor of C-steel corrosion has been studied using the weight loss method. It was found that the efficiency of inhibitor increased by increasing the inhibitor concentration and decreasing temperatures. Also, the action of paraformaldehyde as a corrosion inhibitor has been attributed to the insoluble complexes was adsorbed on the C-steel surface. The iron complexes were identified by FTIR spectrum and the mechanism of inhibition was explained as Langmuir adsorption. The thermodynamic parameters of the adsorption process were calculated and explained.

Study Snapshot

Paraformaldehyde in 15% HCl solution effectively inhibits carbon steel corrosion by forming insoluble complexes on the steel surface, with increased efficiency at higher concentrations and lower temperatures.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Paper

Paraformaldehyde as a corrosion inhibitor for carbon steel in (%15) HCl

References

Natural organic antioxidants from green tea inhibit corrosion of steel reinforcing bars embedded in mortar

Green tea extract, a mixed-type corrosion inhibitor, effectively inhibits corrosion of steel reinforcing bars embedded in mortar, with its main components being (-)-epigallocatechin gallate, (-)-epicatechin gallate, and catechin or (-)-epicatechin.

A perspective on dual purpose gas hydrate and corrosion inhibitors for flow assurance

Dual purpose gas hydrate and corrosion inhibitors (GHCIs) can effectively mitigate hydrate and corrosion issues in pipelines, but require large infrastructure and complex regeneration processes.

A review of corrosion inhibitors for rust preventative fluids

Corrosion inhibitors in rust preventative fluids provide temporary protection to metals, with potential for further research and development.

Synergistic and Antagonistic Effects of Anions and Ipomoea invulcrata as Green Corrosion Inhibitor for Aluminium Dissolution in Acidic Medium

Ipomoea invulcrata extract acts as an effective green inhibitor for aluminium corrosion in acidic medium, with increased efficiency at higher concentrations but decreasing with temperature and immersion time.

Phenylhydrazone Derivatives as Corrosion Inhibitors for -α- Brass in Hydrochloric Acid Solutions

Phenylhydrazone derivatives effectively inhibit corrosion of 70Cu-30Zn brass in hydrochloric acid solutions, increasing resistance to pitting attack.

Citations

Corrosion Control Mechanisms and the Effect of pH on Corrosion in the Crude Oil Refining Process

Adding different quantities of chemicals, electrical and thermal treatment, and maintaining a pH between 5.5 and 6.5 effectively reduces corrosion in crude oil refining equipment.