Description Physicochemical properties
ChemicalBook > CAS DataBase List > Goethite

Goethite

Description Physicochemical properties
Goethite Structure
Goethite
  • CAS No.1310-14-1
  • Chemical Name:Goethite
  • CBNumber:CB8243072
  • Molecular Formula:FeHO2
  • Formula Weight:88.85
  • MOL File:1310-14-1.mol
Goethite Property
Safety
  • WGK Germany  :-
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H373
  • Precautionary statements P260-P314-P501

Goethite Chemical Properties,Usage,Production

  • Description Goethite is typically formed under oxidizing conditions as a weathering product of femferous minerals, siderite, pyrite, and magnetite, and is widespread as deposits in bogs. It is commonly associated with hematite, pyrolusite, manganite, calcite, quartz, lepidocrocite, clay minerals, and limonite. Hydrous iron oxide is also called limonite. By x-ray examination, most limonites are actually cryptocrystalline goethite with absorbed or capillary water (Palache, Berman, and Frondel 1944). Several excellent pigment ore sources are found in India. Domestic ochre is mined in Georgia and Virginia.
  • Physicochemical properties
    Chemical formula αFeOOH.xH20
    Chemical composition of ore 50% to 88% Fe203, 9% to 10% H20, balance silicate or clay minerals
    Crystal class Orthorhombic; dipyramidal
    Habit Prismatic and striated; also in tablets or scales, grading into acicular and long prismatic forms; also earthy
    Physical Cleavage [010] perfect, [100] less so, fracture uneven, hardness of 5.0-5.5
    Reaction mechanisms Will form ferrites through solid-state reactions as noted under hemotite. Can also be converted from αFeOOH.xH20 to αFesO3 by heat and to ferromagnetic γfe2O3 by reduction and oxidation.
    Melting point Decomposes; naturals (finely ground) start to dehydroxylate at 190°C and is essentially dehydroxylated at 320°C; synthetics start at 180°C and are completely dehydroxylated at 300°C
    Boiling point Decomposes
    Solubility Considered insoluble in water and common organic solvents, 0.0015 gpl cold water
    Index of refraction 2.26-2.27
    Specific gravity 3.3-4.0
    Magnetic Antiferromagnetic
  • Chemical Properties solid. a-FeOOH, goethite [1310-14-1], has a diaspore structure whose color changes from green-yellow to brown-yellow with increasing particle size.
Goethite Preparation Products And Raw materials
Raw materials
Preparation Products
Goethite Suppliers
Global(29)Suppliers
  • Supplier：
    Alfa Chemistry
  • Tel：
  • Email：Info@alfa-chemistry.com
  • Country：United States
  • ProdList：24072
  • Advantage：58
  • Supplier： Hubei Baidu Chemical Co., Ltd
  • Tel：027-59106051<br/>13627137652
  • Email：1438180055@qq.com
  • Country：China
  • ProdList：9591
  • Advantage：58
  • Supplier： Hubei Wande Chemical Co., Ltd
  • Tel：027-59210159<br/>15377098680
  • Email：1148280011@qq.com
  • Country：China
  • ProdList：9889
  • Advantage：58
Goethite Spectrum
1310-14-1, GoethiteRelated Search:
  • 针铁矿
  • 1310-14-1
  • Iron Oxyhydroxide Nanowire
  • IRONOXYHYDROXIDE
  • Iron(III)oxidehydroxide
  • FeO(OH)
  • Goethite (Fe(OH)O)
  • YELLOW IRON OXIDE
  • EISENOXID GELB
  • E 172
  • FERRISPEC(TM) GC
  • FERRISPEC(R) PL COLOR YELLOW IRON OXIDE
  • FERRIC HYDROXY OXIDE
  • IRON (III) ALPHA-OXYHYDROXIDE
  • IRON PIGMENT YELLOW
  • GOETHITE
  • IRON (III) HYDROXIDE, GAMMA
  • IRON(III) HYDROXIDE OXIDE
  • IRON(III) HYDROXIDE
  • IRON (III) HYDROXIDE, ALPHA
  • IRON (III) GAMMA-OXYHYDROXIDE
  • IRON(III) OXIDE, HYDRATED
  • IRON OXIDE PIGMENT YELLOW
  • Einecs 215-176-6
  • Goethite: (Iron hydroxide oxide)

Home

My