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    how do you get hypophosporous from phosporous

    what do you have to do to phosporous to end up with hypophosporous in laymans terms

    0  Views: 433 Answers: 1 Posted: 12 years ago

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    The acid is prepared industrially via a two step process. Hypophosphite salts of the alkali and alkaline earth metals result from treatment of white phosphorus with hot aqueous solution of the appropriate hydroxide, e.g. Ca(OH)2.
    P4 + 3OH− + 3H2O → 3H2PO2− + PH3
    The free acid may be prepared by the action of a strong acid on these hypophosphite salts.
    H2PO2− + H+ → H3PO2
    Alternatively, H3PO2 arises by the oxidation of phosphine with iodine in water.
    PH3 + 2I2 + 2H2O → H3PO2 + 4I− + 4H+
    HPA is usually supplied as a 50% aqueous solution.


    Hope this helps.


    :-)

    koolcat

    couldnt quite understand it.


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