Formation and transformation of iron oxy-hydroxide precursor clusters to ferrihydrite
Alireza Namayandeh, Olaf J. Borkiewicz, Michel Sassi, Kevin M. Rosso, F. Marc Michel
Abstract
Rapid precipitation of iron oxy-hydroxide clusters at pH > 4.5 during hydrolysis can lead to the formation of metastable ferrihydrite while their aging at acidic pH (<2.5) forms stable products such as goethite and lepidocrocite.
Topics & Concepts
FerrihydriteLepidocrociteGoethiteHydroxidePrecipitationInorganic chemistryHydrolysisSchwertmanniteChemistryMetastabilityOrganic chemistryAdsorptionMeteorologyPhysicsIron oxide chemistry and applicationsMine drainage and remediation techniquesRadioactive element chemistry and processing