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dihydroxyiron

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начало: Китай

Кас Но: 18624-44-7

Спецификация: 99%наименьший

минимальный объем заказа: 1 /kg

снабженческая способность: 80 mt/month

опережающий период: OEM 7 дней, пятно 3 дня

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  • Характеристики продукции
  • Описание продукта
  • Property

    CAS No.: 18624-44-7 Formula: FeH2O2 Molecular Weight: 89.85970

    Description

    Iron(II) hydroxide or ferrous hydroxide is a compound with the formula Fe(OH)2. It is produced when iron(II) ions, from a compound such as iron(II) sulfate, react with hydroxide ions. Iron(II) hydroxide itself is practically white, but even traces of oxygen impart a greenish tinge. If the solution was not deoxygenated and the iron reduced, the precipitate can vary in color starting from green to reddish brown depending on the iron(III) content. This precipitate is also known as "green rust" in the crystal lattice of which iron(II) ions are easily substituted by iron(III) ions produced by its progressive oxidation. In the presence of oxygen the color changes quickly.
    Green rust is a powerful reducing agent and also a layer double hydroxide (LDH) capable of sorption of anions because of the presence of positive electrical charges borne on its surface. The mineralogical form of green rust is a recently discovered fougerite. All forms of green rust (including fougerite) are more complex and variable than the ideal iron(II) hydroxide compound. The natural analogue of iron(II) hydroxide compound is a very rare mineral amakinite, (Fe,Mg)(OH)2.
    Iron(II) hydroxide is poorly soluble (1.43 × 10−3 g/L). It precipitates from the reaction of iron(II) sulfate and hydroxide ions (from a soluble compound containing hydroxide ion):
    FeSO4 + 2 OH− → Fe(OH)2 + SO42− FeSO4 + 2NaOH → Fe(OH)2 + Na2SO4
    It is also easily formed as an undesirable by-product of other reactions, a.o., in the synthesis of siderite, an iron carbonate (FeCO3), if the crystal growth conditions are poorly controlled (reagent concentrations, addition rate, addition order, pH, pCO2, T, aging time, ...).

    Basic Info

    Chemical Name dihydroxyiron
    Synonyms

    IRON DIHYDRATE;

    CAS No. 18624-44-7
    Molecular Formula FeH2O2
    Molecular Weight 89.85970
    PSA 40.46000
    LogP -0.35610

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