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    Calcium Phosphate Granular

    Calcium Phosphate Granular in Tradeasia

    IUPAC Name


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    Basic Info


    White to light gray granular solid

    Common Names

    Calcium Phosphate Granules


    400 @ 50 kg PP bag, 20 MT/ 20FCL

    Calcium phosphate is a family of materials and minerals containing calcium ions (Ca 2+ )
    together with inorganic phosphate anions. They usually appear as white solids and have
    high nutritional value. Calcium phosphates are found in many living organisms. In milk, it
    exists in a colloidal form in micelles bound to casein protein with magnesium, zinc,
    and citrate - collectively referred to as colloidal calcium phosphate (CCP). Various calcium
    phosphate minerals are used in the manufacture of phosphoric acid and fertilizers. Certain
    forms of calcium phosphate can lead to surface runoff rich in nutrients and subsequent
    adverse effects upon receiving such waters such as growth of algae and eutrophication.

    Manufacturing Processes
    Calcium phosphate is produced commercially by treating hydroxyapatite with phosphoric
    acid and slaked lime.

    It cannot be precipitated directly from aqueous solution. Typically, double decomposition
    reactions are employed, involving a soluble phosphate and calcium salts, e.g. (NH 4 ) 2 HPO 4  +
    Ca(NO 3 ) 2 . is performed under carefully controlled pH conditions. The precipitate will either
    be "amorphous calcium phosphate", ATCP, or calcium deficient hydroxyapatite, CDHA,
    Ca 9 (HPO 4 )(PO 4 ) 5 (OH), (note CDHA is sometimes termed apatitic calcium
    triphosphate). Crystalline calcium phosphate can be obtained by calcining the precipitate. β-
    Ca 3 (PO 4 ) 2  is generally formed, higher temperatures are required to produce α-Ca 3 (PO 4 ) 2 .
    An alternative to the wet procedure entails heating a mixture of a calcium pyrophosphate
    and calcium carbonate:

    CaCO 3  + Ca 2 P 2 O 7  → Ca 3 (PO 4 ) 2  + CO 2


    Calcium Phosphate is used as a nutritional supplement and occurs naturally in cow milk

    It can be used as a tissue replacement for repairing bony defects when autogenous bone
    graft is not feasible or possible. It may be used alone or in combination with
    a biodegradable, resorbable polymer such as polyglycolic acid. 

    Porous beta-Tricalcium phosphate scaffolds are employed as drug carrier systems for local
    drug delivery in bone.

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