Product Details
Category
Antacid; vaccine adjuvant
Molecular Weight
121.9529
Grade
Pharmaceutical grade
Description
Aluminium phosphate occurs in nature as the mineral, berlinite. Also, it occurs in nature in minerals, amblygonite, [NaAl(PO4)(OH)]; augelite, [Al2(PO4)(OH)3]; lazulite, [(Mg,Fe)Al2(PO4)2(OH)2]; variscite [(Al,Fe3+)(PO4)•2H2O]; and wavellite, [Al3(OH)3•(PO4)2•5H2O]. It is used as flux for ceramics; as cement in combination with calcium sulfate and sodium silicate; and in the manufacture of special glasses. It is also used in dried gel and therapeutically as an antacid.
Chemical Name
Aluminium phosphate
Administration route
Accepted for use in human and veterinary vaccines
Dosage Form
Accepted for use in human and veterinary vaccines
Stability and Storage Conditions
Aluminum phosphate adjuvant is stable for at least 2 years when stored at 4–308℃ in well-sealed inert containers. It must not be allowed to freeze as the hydrated colloid structure will be irreversibly damaged.
Source and Preparation
Aluminum phosphate adjuvant is formed by the reaction of a solution of aluminum chloride and phosphoric acid with alkali hydroxide.
Applications
Aluminum Phosphate is an odorless, white crystalline solid which is often used in liquid or gel form. It is used in ceramics, dental cements, cosmetics, paints, paper and pharmaceuticals.
Safety
Aluminum phosphate adjuvant is intended for use in parenteral vaccines and is generally regarded as safe. It may cause mild irritation, dryness, and dermatitis on skin contact. It may also cause redness, conjunctivitis, and short-term mild irritation on eye contact. Ingestion of large amounts of aluminum phosphate adjuvant may cause respiratory irritation with nausea, vomiting, and constipation. Inhalation is unlikely, although the dried product may cause respiratory irritation and cough. Type I hypersensitivity reactions following parenteral administration have also been reported.
Incompatibilities
The point of zero charge is related directly to the Al : P atomic ratio. Therefore, the substitution of additional phosphate groups for hydroxyl groups will lower the point of zero charge. Substitution of carbonate, sulfate, or borate ions for hydroxyl groups will also lower the point of zero charge.
A strong oxidizer; keep away from combustible materials. Violent reaction with reducing agents; strong bases. Material is an inorganic acid and will react, possibly violently, with bases; corrosive to metals, some plastics and body tissues.