iron alum

iron alum
noun
1. : an alum containing iron as the trivalent constituent; especially : ammonium ferric alum NH4Fe(SO4)2.12H2O

Useful english dictionary. 2012.

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  • iron alum — geležies alūnas statusas T sritis chemija formulė MFe(SO₄)₂·12H₂O atitikmenys: angl. iron alum rus. железные квасцы …   Chemijos terminų aiškinamasis žodynas

  • Alum Bay — is a sandy bay near the westernmost point of the Isle of Wight, England, within sight of The Needles. Of geological interest and a tourist attraction, the bay is noted for its multi coloured sand cliffs.GeologyAlum Bay is the location of a… …   Wikipedia

  • Alum schist — Al um schist , Alum shale Al um shale , (Min.) A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock. [1913 Webster] …   The Collaborative International Dictionary of English

  • Alum shale — Alum schist Al um schist , Alum shale Al um shale , (Min.) A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock. [1913 Webster] …   The Collaborative International Dictionary of English

  • alum — alum1 [al′əm] n. [ME & OFr < L alumen, alum: for IE base see ALE] 1. a double sulfate of a monovalent metal or radical (as sodium, potassium, or ammonium) with a trivalent metal (as aluminum, iron, or chromium): it is used as an astringent, as …   English World dictionary

  • Alum — This article is about the chemical compound. For other uses, see Alum (disambiguation). Bulk alum Alum (  / …   Wikipedia

  • alum — alum1 /al euhm/, n. Chem. 1. Also called potash alum, potassium alum. a crystalline solid, aluminum potassium sulfate, K2SO4·Al2(SO4)3·24H2O, used in medicine as an astringent and styptic, in dyeing and tanning, and in many technical processes. 2 …   Universalium

  • Iron — An essential mineral. Iron is necessary for the transport of oxygen (via hemoglobin in red blood cells) and for oxidation by cells (via cytochrome). Deficiency of iron is a common cause of anemia. Food sources of iron include meat, poultry, eggs …   Medical dictionary

  • alum — A double sulfate of aluminum and of an alkaline earth element or ammonium; chemically, an a. is any one of the markedly astringent double salts formed by a combination of a sulfate of aluminum, iron, manga …   Medical dictionary

  • alum-shale — alˈum shale or alˈum slate noun A slate consisting mainly of clay, iron pyrites and coaly matter, from which alum is obtained • • • Main Entry: ↑alum …   Useful english dictionary

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