Ferrous hydroxychlorides hibbingite [γ-Fe2(OH)3Cl] and parahibbingite [β-Fe2(OH)3Cl] as a concealed sink of Cl and H2O in ultrabasic and granitic systems

Abstract

Ferrous hydroxychlorides are geochemically important, but less recognized, mineral species due to their extreme sensitivity to oxidation and hydration in contact with air (typically they convert to This is the peer-reviewed, final accepted version for American Mineralogist, published by the Mineralogical Society of America.The published version is subject to change. Cite as Authors (Year) Title. American Mineralogist, in press.

Ti3C2 MXene/Polyaniline/Montmorillonite Nanostructures toward Solvent-Free Powder Coatings with Enhanced Corrosion Resistance and Mechanical Properties

“…The characteristic diffraction peaks of Fe were detected in all samples at 44 and 63°. For pristine PC, the main components of rust product are α-Fe 2 (OH) 3 Cl, Fe 3 O 4 , FeOOH, and FeCl 3 , which is due to the easy penetration of corrosive media (Cl, O 2 , and H 2 O), further caused the facile formation of Fe 2 (OH) 3 Cl, and signifies more severe corrosion on a steel substrate . However, in the presence of modified 2D nanosheets, only a small amount of H 2 O and O 2 could reach the substrate beneath.…”

“…For pristine PC, the main components of rust product are α-Fe 2 (OH) 3 Cl, Fe 3 O 4 , FeOOH, and FeCl 3 , which is due to the easy penetration of corrosive media (Cl, O 2 , and H 2 O), further caused the facile formation of Fe 2 (OH) 3 Cl, and signifies more severe corrosion on a steel substrate. 72 PC composite, demonstrating that an appropriate content and good distribution of modified nanosheets can block the corrosive medium, notably enhance the corrosion performance, and prolong the protection time of the coating. 25,73 As shown in Raman spectra (Figure 8b), the corrosion layer beneath neat PC showed peaks of α-Fe 2 (OH) 3 Cl (3545 cm −1 ), Fe 3 O 4 (540 cm −1 ), FeOOH (250, 720, 1060, and 1300 cm −1 ), and FeCl 3 (220 cm −1 ).…”