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Iron(II) perchlorate





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Iron(II) perchlorate is the inorganic compound with the formula Fe(ClO4)2·6H2O. A green, water-soluble solid, it is produced by the reaction of iron metal with dilute perchloric acid followed by evaporation of the solution:[3]

Iron(II) perchlorate
Names
IUPAC name

Iron(II) diperchlorate

Other names
  • Iron diperchlorate
  • Ferrous perchlorate
    • Identifiers

    CAS Number

    3D model (JSmol)
    ChemSpider
    ECHA InfoCard 100.034.263 Edit this at Wikidata
    EC Number
    • 237-704-4

    PubChem CID

    CompTox Dashboard (EPA)

    • InChI=1S/2ClHO4.Fe.H2O/c2*2-1(3,4)5;;/h2*(H,2,3,4,5);;1H2/q;;+2;/p-2

      Key: BJDJGQJHHCBZJZ-UHFFFAOYSA-L

    • O.[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[Fe+2]

    Properties

    Chemical formula

    		 Fe(ClO4)2
    Molar mass 254.75 g/mol
    Appearance Green crystals
    Density 2.15 g/cm3
    Melting point 100 °C (212 °F; 373 K)

    Solubility in water

    		 98 g/100 mL (25 °C)[1]
    Structure[2]

    Crystal structure

    		 Orthorhombic

    Space group

    		 Pmn21

    Lattice constant

    a = 7.79 Å, b = 13.48 Å, c = 5.24 Å

    Hazards
    GHS labelling:

    Pictograms

    		 GHS03: OxidizingGHS07: Exclamation mark

    Signal word

    		 Danger

    Hazard statements

    		 H272, H315, H319, H335

    Precautionary statements

    		 P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
    NFPA 704 (fire diamond)
    NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
    2
    0
    1
    OX
    Related compounds

    Other cations

    		 Manganese(II) perchlorate
    Cobalt(II) perchlorate
    Nickel(II) perchlorate

    Related compounds

    		 Iron(III) perchlorate

    Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

    Infobox references

    Fe + 2 HClO4 + 6 H2O → Fe(ClO4)2·6H2O + H2

    In solution, iron(II) perchlorate slowly oxidizes in air to iron(III) oxyhydroxide.[4]

    The hexahydrate consists of discreet hexaaquoiron(II) dications and perchlorate anions. It crystallizes with an orthorhombic structure.[2] It has minor phase transitions at 245 and 336 K.[5]

    Uses

    edit

    In organic chemistry, iron(II) perchlorate can be used as a source of ferrous ions for the Fenton oxidation.[1]

    References

    edit
    1. ^ a b Mark W. Zettler; Daniela Sustac Roman (2014). "Iron(II) Perchlorate". Encyclopedia of Reagents for Organic Synthesis (EROS). doi:10.1002/047084289X.ri064.pub2.
  • ^ a b Ghosh, Minakshi; Ray, Siddhartha (1981). "Twinning, disorder and phase transition in ferrous Perchlorate hexahydrate crystals". Zeitschrift für Kristallographie - Crystalline Materials. 155 (1–2): 129–137. Bibcode:1981ZK....155..129G. doi:10.1524/zkri.1981.155.1-2.129.
  • ^ B.K. Chaudhuri (1975). "A new type of phase transition in M(ClO4)2(H2O)6 M = Fe, Co, Ni and Mn". Solid State Communications. 16 (6): 767–772. doi:10.1016/0038-1098(75)90071-X.
  • ^ Philip George (1954). "The oxidation of ferrous perchlorate by molecular oxygen". Journal of the Chemical Society (Resumed): 4349–4359. doi:10.1039/JR9540004349.
  • ^ D. P. Chiang; C. H. Peng; J. K. Mei; I. M. Jiang; S. C. Lin; Y. C. Chen; H. T. Liu; Y. F. Chen; W. S. Tse (2008). "Raman spectra of crystalline iron perchlorate hexahydrate". Journal of Raman Spectroscopy. 39 (3): 344–348. doi:10.1002/jrs.1801.
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    • Retrieved from "https://en.wikipedia.org/w/index.php?title=Iron(II)_perchlorate&oldid=1217421708"
      



    Last edited on 5 April 2024, at 18:43  





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    ●This page was last edited on 5 April 2024, at 18:43 (UTC).
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