Ferrihydrite - Wikipedia
网页Ferrihydrite (Fh) is a widespread hydrous ferric oxyhydroxide mineral at the Earth's surface, [6] [7] and a likely constituent in extraterrestrial materials. [8] It forms in several types of environments, from freshwater to marine systems, aquifers to hydrothermal hot springs and scales, soils , and areas affected by mining.
The Structure of Ferrihydrite, a Nanocrystalline Material | Science
网页2007年6月22日 · On the basis of this structure in its ideal form, the chemical formula for ferrihydrite is Fe 10 O 14 (OH) 2. Thermal analysis strongly suggests the presence and particle-size dependence of additional surface-bound water (12).
Ferrihydrite: Mineral information, data and localities. - mindat.org
网页Formula: Fe3+10O14(OH)2. Previously given as Fe 3+5 O 3 (OH) 9. Colour: dark brown, yellow-brown. Specific Gravity: 3.96. Crystal System: Trigonal. Name: For the chemical composition (hydrated ferric iron oxide). Co-Type Localities:
Ferrihydrite - an overview | ScienceDirect Topics
网页Ferrihydrite ((Fe 3+ 10 O 14 (OH) 2)) forms a significant proportion of soils, especially soils formed under cool, moist conditions and it occurs as a pre-terrestrial weathering product in meteorites. It provides the inorganic base of ferritin in biological systems and is present as rust and in acid mine drainage.
Ferrihydrite Mineral Data
网页Fe 3+2 O 3 •0.5 (H 2 O) Environment: Secondary mineral in an oxidizing environment, strongly dependant on pH. IMA Status: Approved IMA 1973. Locality: Clara mine, Grube Clara, Germany Link to MinDat.org Location Data. Name Origin: Named for the composition as a hydrated ferric iron compound.
Surface and mineral structure of ferrihydrite - ScienceDirect
网页2013年3月15日 · Ferrihydrite (Fh) is an yet enigmatic nano Fe(III)-oxide material, omnipresent in nature that can bind ions in large quantities, regulating bioavailability and ion mobility. Although extensively studied, to date no proper view exists on the surface structure and composition, while it is of vital importance to our understanding of ion ...
Direct identification of reaction sites on ferrihydrite - Nature
网页2020年6月19日 · Here we directly identify populations of these groups on ferrihydrite, a key yet misunderstood iron oxyhydroxide nanomineral in natural sciences.
网页chemical formula for ferrihydrite is Fe10O14(OH)2. Thermal analysis strongly suggests the presence and particle size dependence of additional surface-bound water (12). Although the structure of ferrihydrite can be satisfactorily described by a periodic model (Fig. 2), residuals in the fitting results
Ab initio thermodynamics reveals the nanocomposite structure of ...
网页2021年9月20日 · Ferrihydrite is a poorly crystalline iron oxyhydroxide nanomineral that serves a critical role as the most bioavailable form of ferric iron for living systems. However, its atomic structure and...
Ferrihydrite - Scientific Lib
网页Ferrihydrite (Fh) is a widespread hydrous ferric oxyhydroxide mineral at the Earth's surface [1] [2], and a likely constituent in extraterrestrial materials. [3] It forms in several types of environments, from freshwater to marine systems, aquifers to hydrothermal hot springs and scales, soils, and areas affected by mining.
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