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Where to get sodium tripolyphosphate (STPP)

  • 13-06-2011 12:04am
    #1
    Hammered hippie
    Registered Users, Registered Users 2 Posts: 121 ✭✭


    I need some Sodium Tripolyphosphate as it is the best chemical to dissolve crusts from some of the coins I recently acquired for my hobby, coin collecting.
    Sodium Tripolyphosphate or STPP is quite a common chemical. It is used as a preservative in frozen food (fisH), detegent in all kinds of cleaning products and it is used in fertilizers.
    However..getting this chemical in small quantities like 100g - 1kg in Ireland seems impossible. Sure it is available in 25kg bags for the industry..but not in small quantities
    Anyone any ideas?
    Also looking for Potassium Sulphide (aka Liver of Sulphur ) to tarnish any coins that were cleaned too vigourously for aesthetics.
    An online company that doesn't charge too much shipment cost would also work for me.
    Many thanks for your help


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