Abstract
A major problem in the oil and gas industry is corrosion in sour (or H2S-containing) environments. Low concentrations of H2S act to inhibit corrosion, because of the formation of a protective iron sulfide film/scale on steel surfaces; large concentrations can lead to pitting, severe localized corrosion, and catastrophic failure. Therefore, the solubility and hydrothermal stability of iron sulfides is particularly relevant to corrosion. To understand the mechanisms that are associated with the hydrothermal formation of iron sulfides, it is important to reliably estimate equilibrium constants for all the reactions involved, including those for the dissolution and dissociation of H2S. In this study, equations for determining the equilibrium constants that are related to the solubility of mackinawite are evaluated, and the most appropriate expressions are described. Also, the most relevant expressions for the solubility of H2S and for the first dissociation constant of H2S are reviewed. It is recommended that...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
