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    Trimagnesium Diphosphate

    Trimagnesium Diphosphate in Tradeasia

    IUPAC Name

    Trimagnesium Diphosphate

    Cas Number


    HS Code






    Basic Info


    White Powder or White Crystals

    Common Names

    magnesium phosphate, phosphoric acid, magnesium salt (2:3), tertiary magnesium phosphate, trimagnesium phosphate


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    Brief Overview

    Trimagnesium phosphate is listed on the FDA's generally recognized as safe list of substances. It is insoluble in water and soluble in salt solution.

    Manufacturing Process

    1. The octahydrate forms upon reaction of stoichiometric quantities of monomagnesium phosphate with magnesium hydroxide:Mg(H2PO4)2 + Mg(OH)2 → Mg3(PO4)2•8H2O

    The octaohydrate is found in nature as the mineral bobierrite.

    It has also been disclosed to produce Mg3 (PO4)2.8H2 O by reacting orthophosphoric acid, added dropwise, to magnesium oxide powder or magnesium hydroxide powder with energetic stirring. This order of addition, i.e., the acid to the base, is disclosed to be necessary to produce the trimagnesium but not the dimagnesium phosphate.

    The anhydrous compound is obtained by heating the hydrates to 400 degree C.

    2. It is also manufactured by precipitation using aqueous solution of tribasic sodium phosphate and magnesium sulfate or chloride. Precipitate of magnesium phosphate is washed with water until it is free of sulfate or chloride then it is dried at low temperature.

    Food Additives: 

    Food additives are substances added to food to preserve flavor or enhance its taste, appearance, or other qualities. It an be added into food as additives such as spices to increase and balance the taste of food, extracts, colorings, flavors

    Food Contacts:

    Food packaging, paper plates, cutlery, small appliances such as roasters

    Personal Care:

    Cosmetics, shampoos, perfumes, soaps, lotions, toothepastes

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