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Enthalpy of formation

  • 09-03-2011 12:45pm
    #1
    Dan0
    Closed Accounts Posts: 1 ✭


    Hi lads, just wondering can anybody give me a bit of advice.

    I'm looking to find out the heat change due to reaction in wastewater influent when a coagulant is added.

    The coagulant is Ferric Sulphate. the reactions as far as I can gather in wastewater are
    2FE+3 + 3HS - <--> FE2 S3 (s) + 3H+

    and
    FE+3 + PO43+ --> FE PO4

    am I right in saying i need the values for delta H for each component and if so I cant seem to find ones for FE PO4 and PO43+

    Any words of wisdom would be appreciated. Spent a lot of time looking over this and getting nowhere, I know its probably easy but chemistry wouldn't be my strong point. Thanks in advance


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