About: Iron(III)

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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, FeCl3. 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.

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rdfs:label	Fèrric (ca) Iron(III) (en) Ion ferrique (fr) 第二鉄 (ja) Férrico (pt) Trevärt järn (sv) 三价铁离子 (zh)
rdfs:comment	Fèrric es refereix als materials que contenen ferro o als compostos químics amb ferro (III) amb un nombre d'oxidació de +3, també s'anomena com Fe3+. S'oposa al ferrós que té un nombre d'oxidació de +2 (Fe2+). El ferro(III) és normalment la forma més estable del ferro a l'aire com demostra el rovellat, una forma insoluble del material que conté ferro(III). (ca) En chimie, l'ion ferrique (Fe3+) est l'ion trivalent du fer (état d'oxydation +III), par opposition à l'ion ferreux, ce qui indique un composé de fer divalent (état d'oxydation +II). Cet usage est assez obsolète, la nomenclature UICPA ayant des noms contenant l'état d'oxydation noté avec des chiffres romains entre parenthèses à la place, tels l'oxyde de fer(II) pour l'oxyde de fer FeO et l'oxyde de fer(III) pour l'oxyde de fer Fe2O3. (fr) 第二鉄（だいにてつ、Fe3+)は、鉄の3価の陽イオンで、黄色から橙色である。水酸化物イオンと反応して水酸化鉄の沈殿を生じ、チオシアン酸カリウムとでは血赤色の溶液になる。ヘキサシアニド鉄(II)酸カリウムとではベルリンブルーの沈殿を生じ、硫化水素とは、塩基性下で一度鉄IIIイオンを鉄IIイオンに還元し、その後硫化鉄の沈殿を生じる。しかし、酸性下では鉄IIイオンに還元されるだけで、沈殿は生じない。代表的な化合物には塩化鉄や酸化鉄がある。 (ja) Trevärt järn, järn (III), är grundämnet järn med oxidationstalet III, Fe3+. Trevärda järnjoner är svårlösliga i vattnen och fälls ofta ut som rostutfällningar. Vid reducerande förhållanden kan trevärt järn reduceras till tvåvärt järn Fe2+. (sv) 三价铁离子（Fe3+）是一种常见的铁的离子，主要存在于铁盐及其溶液中，如氯化铁。Fe3+具有较强的氧化性(EΘ=+0.77V)。虽然常见的含三价铁离子的氯化铁溶液呈棕黄色，但这并不是Fe3+自身的颜色，而是其与Cl-配位形成的配合物的颜色；[Fe(H2O)6]3+实际上是淡紫色的。 (zh) 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, FeCl3. 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. (en) Férrico refere-se a materiais ou compostos contendo ferro. Em química o termo é reservado para ferro com um número de oxidação de +3, também notado como ferro (III) ou Fe3+. Por outro lado, ferroso refere-se a ferro com número de oxidação de +2, notado ferro (II) ou Fe2+. Ferro (III) é usualmente a mais estável forma de ferro ao ar, como ilustrado pela difusão de ferrugem, um material contendo ferro (III) insolúvel. Um exemplo de composto férrico é o cloreto férrico, ou cloreto de ferro (III). (pt)
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dcterms:subject	Iron(III) compounds
Wikipage page ID	92522 (xsd:integer)
Wikipage revision ID	1115441722 (xsd:integer)
Link from a Wikipage to another Wikipage	Metalloprotein Hydrogen Cytochrome Ligand field theory Iron(III) compounds Chemical element Citrate Coordination complex Copper Thiocyanate Anemia Anion Ligand Passivation (chemistry) Bacteria Cation Cyclopentadienyl Iron(II) Le Chatelier's principle Alga Aluminum EDTA Ferredoxin Ferrioxalate Ferrocenium Oxalate Oxidation number Oxidizer Oxygen PH Chromium Precipitate Protein Qualitative inorganic analysis Redox Iron Iron(III) chloride Iron(III) fluoride Iron(III) nitrate Iron(III) oxide Iron(III) oxide-hydroxide Iron(III) phosphate Iron(III) sulfate Humidity Hydrolysis Chelation Chemical equilibrium Chemistry Latin Bidentate Bioavailability Phosphate Phosphorus Phytoplankton Polymer Sodium chloride Ferritin Ferrous Organometallic compound Printed circuit board Rust Salt (chemistry) Siderophore Octahedral molecular geometry Olation Eutrophication Graminaceae Calcareous soil Iron(III) hydroxide Iron(III) oxide hydroxide Oxyhemoglobin
sameAs	Iron(III) Iron(III) Iron(III) Iron(III) Iron(III) Iron(III) Iron(III) Iron(III)

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