Ferric oxide
Ferric Fer"ric, a. [L. ferrum iron: cf. F. ferrique. See {Ferrous}.] Pertaining to, derived from, or containing iron. Specifically (Chem.), denoting those compounds in which iron has a higher valence than in the ferrous compounds; as, ferric oxide; ferric acid. [1913 Webster]

{Ferric acid} (Chem.), an acid, {H2FeO4}, which is not known in the free state, but forms definite salts, analogous to the chromates and sulphates.

{Ferric oxide} (Chem.), sesquioxide of iron, {Fe2O3}; hematite. See {Hematite}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • ferric oxide — n. a brown or reddish oxide of iron, Fe2O3, occurring naturally as hematite or prepared by the oxidation of iron: used as a pigment, in polishing compounds, in magnetic tapes, etc …   English World dictionary

  • Ferric Oxide —   [engl.], Eisenoxid …   Universal-Lexikon

  • ferric oxide — noun a red oxide of iron • Hypernyms: ↑oxide • Hyponyms: ↑rust • Substance Holonyms: ↑rust, ↑rusting, ↑hemosiderin, ↑haemosiderin * * * …   Useful english dictionary

  • ferric oxide — geležies(III) oksidas statusas T sritis chemija formulė Fe₂O₃ atitikmenys: angl. colcothar; ferric oxide; iron minium; iron sesquioxide; ironic oxide; iron(III) oxide; Prussian red; red iron oxide; red ocher, US; red ochre, GB; Spanish oxide rus …   Chemijos terminų aiškinamasis žodynas

  • ferric oxide — A compound used as a coloring material. * * * ferric oxide n the red or black oxide of iron Fe2O3 found in nature as hematite and as rust and also obtained synthetically and used as a pigment and for polishing * * * [NF] Fe2O3, a coloring agent… …   Medical dictionary

  • ferric oxide — noun A name for the chemical compound FeO, iron oxide where iron has a valence of +3. IUPAC has deprecated this term in favor of iron(III) oxide …   Wiktionary

  • ferric oxide — noun Date: 1851 the red or black oxide of iron Fe2O3 found in nature as hematite and as rust and also obtained synthetically and used especially in magnetic materials, as a pigment, and for polishing …   New Collegiate Dictionary

  • ferric oxide — Chem. a dark red, crystalline, water insoluble solid, Fe2O3, occurring naturally, as hematite and rust, or synthesized: used chiefly as a pigment, as a mordant, as a coating for magnetic recording tape, and in the manufacture of polishing… …   Universalium

  • ferric oxide —    Rust; hematite (Fe2O3) [16] …   Lexicon of Cave and Karst Terminology

  • ferric oxide — fer′ric ox′ide n. chem. a red crystalline compound, Fe2O3, used as a pigment, mordant, and coating for magnetic tape • Etymology: 1880–85 …   From formal English to slang

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