Ferruginous
The adjective ferruginous may mean: * Containing iron, applied to water, oil, and other non-metals * Having rust on the surface * With the rust (color) See also * Ferrous, containing iron (for metals and alloys) or iron(II) cations * Ferric, containing iron(III) cations * Ferrate, anions containing iron * Ferruginous body, a nodule indicative of asbestos inhalation * Ferruginea (other) Ferruginea, a Latin word meaning "ferruginous" or "rusty", may refer to: * Substantia ferruginea, an underlying patch of deeply pigmented nerve cells that give the locus ceruleus its bluish-gray color * a ''Magnolia grandiflora ''Magnolia gran ... * List of birds described as ferruginous {{disambiguation ...
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Ferruginous Body
A ferruginous body is a histopathologic finding in interstitial lung disease suggestive of significant asbestos exposure (asbestosis). Asbestos exposure is associated with occupations such as shipbuilding, roofing, plumbing, and construction. They appear as small brown nodules in the septum of the alveolus. Ferruginous bodies are typically indicative of asbestos inhalation (when the presence of asbestos is verified they are called "asbestos bodies"). In this case they are fibers of asbestos coated with an iron-rich material derived from proteins such as ferritin and hemosiderin. Ferruginous bodies are believed to be formed by macrophages that have phagocytosed and attempted to digest the fibers. Additional images Image:Asbestosis_high_mag.jpg, Micrograph of asbestosis with prominent ferruginous bodies. H&E stain Hematoxylin and eosin stain ( or haematoxylin and eosin stain or hematoxylin-eosin stain; often abbreviated as H&E stain or HE stain) is one of the principal t ...
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Iron
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron A ...
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Rust
Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe2O3·nH2O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH)3), and is typically associated with the corrosion of refined iron. Given sufficient time, any iron mass, in the presence of water and oxygen, could eventually convert entirely to rust. Surface rust is commonly flaky and friable, and provides no passivational protection to the underlying iron, unlike the formation of patina on copper surfaces. ''Rusting'' is the common term for corrosion of elemental iron and its alloys such as steel. Many other metals undergo similar corrosion, but the resulting oxides are not commonly called "rust". Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances. Other forms of rust include the result of reactions between iron and chloride ...
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Rust (color)
Rust is an orange-brown color resembling iron oxide. It is a commonly used color in stage lighting and appears roughly the same color as photographic safelights when used over a standard tungsten light source. The first recorded use of ''rust'' as a color name in English was in 1692. Maerz and Paul ''A Dictionary of Color'' New York:1930 McGraw-Hill Page 203; Color Sample of Rust: Page 35 Plate 6 Color Sample A12 Origin Rust is named after the resulting phenomenon of the oxidation of iron. The word 'rust' finds its etymological origins in the Proto-Germanic word ''rusta'', which translates to "redness." The word is closely related to the term "ruddy," which also refers to a reddish coloring in an object. References See also * List of colors These are the lists of colors; * List of colors: A–F * List of colors: G–M * List of colors: N–Z * List of colors (compact) * List of colors by shade * List of color palettes * List of Crayola crayon colors * List of RAL ...
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Ferrous
In chemistry, the adjective Ferrous indicates a compound that contains iron(II), meaning iron in its +2 oxidation state, possibly as the divalent cation Fe2+. It is opposed to "ferric" or iron(III), meaning iron in its +3 oxidation state, such as the trivalent cation Fe3+.ferrous
entry in the

Merriam-Webster

online dictionary. Accessed on 2008-04-19. This usage has been largely replaced by the nomenclature, which calls for the oxidation state being indicated by Roman numerals in parentheses, such as

Ferric
In chemistry, iron(III) refers to the element iron in its +3 oxidation state. In ionic compounds (salts), such an atom may occur as a separate cation (positive ion) denoted by Fe3+. The adjective ferric or the prefix ferri- is often used to specify such compounds — as in "ferric chloride" for iron(III) chloride, . The adjective "ferrous" is used instead for iron(II) salts, containing the cation Fe2+. The word ferric is derived from the Latin word ''ferrum'' for iron. Iron(III) metal centres also occur in coordination complexes, such as in the anion ferrioxalate, , where three bidentate oxalate ions surrounding the metal centre; or, in organometallic compounds, such as the ferrocenium cation , where two cyclopentadienyl anions are bound to the FeIII centre. Iron is almost always encountered in the oxidation states 0 (as in the metal), +2, or +3. Iron(III) is usually the most stable form in air, as illustrated by the pervasiveness of rust, an insoluble iron(III)-containing ...
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Ferrate
Ferrate loosely refers to a material that can be viewed as containing anionic iron complexes. Examples include tetrachloroferrate ( eCl4sup>2−), oxyanions ( ), tetracarbonylferrate ( e(CO)4sup>2−), the organoferrates. The term ferrate derives from the Latin word for iron, ''ferrum''. File:Disodium tetracarbonylferrate.png, Disodium salt of tetracarbonylferrate. File:Ferrate ion.svg, Structure of eO4sup>2−. File:1-Butyl-3-methylimidazolium tetrachloroferrate.svg, 1-Butyl-3-methylimidazolium salt of eCl4sup>−. File:Potassium-ferrioxalate-2D.png, Potassium tris(oxalato)ferrate Potassium ferrioxalate, also called potassium trisoxalatoferrate or potassium tris(oxalato)ferrate(III) is a chemical compound with the formula []. It often occurs as the trihydrate . Both are crystalline compounds, lime green in colour.A. Sarith .... References {{reflist Iron compounds Anions Ferrates ...
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Ferruginea (other)
Ferruginea, a Latin word meaning "ferruginous" or "rusty", may refer to: * Substantia ferruginea, an underlying patch of deeply pigmented nerve cells that give the locus ceruleus its bluish-gray color * a ''Magnolia grandiflora ''Magnolia grandiflora'', commonly known as the southern magnolia or bull bay, is a tree of the family Magnoliaceae native to the Southeastern United States, from Virginia to central Florida, and west to East Texas. Reaching in height, it is a ...