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Thread: Phosphoric Acid source

  1. #1
    Join Date
    Dec 2003
    Location
    Strongsville, Ohio
    Posts
    231

    Phosphoric Acid source

    Looking for a source for food grade phosphoric acid, 75% or so for adding to sparge water.

    Thanks

    JackK

  2. #2
    Join Date
    Jan 2005
    Posts
    121
    Try Surpass Chemical in Albany, NY http://www.surpasschemical.com/

    You might be better off using H2SO4 (85%) instead as you would only need to use about 1/3 the amount to get the same effect. The PO4 acts as a buffer.....

  3. #3
    Join Date
    Oct 2002
    Location
    Tadcaster, Yorkshire, UK
    Posts
    1,056
    Wherever / whoever you get it from, don't forget to ensure it is fodd grade, not just analytical grade. Sometimes analaytical grade chemicals contain too many contaminants such as arsenic to be safe to use in food products.

    Have to say though, I'm not sure what the differnce between analytical and food grade H3PO4 is.

    Cheers
    dick

  4. #4
    Join Date
    Nov 2002
    Location
    West Chester, PA
    Posts
    393
    Your local 5star chem rep will sell you food grade Phos for cheap....for that matter any good chem supplier should be able to get it.

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