Patent ID: 8124059

Claim:
A method of making a stabilized aqueous solution comprising polymerically stable zirconium in a composition comprising aluminum, zirconium, phosphate and chloride, the method comprising the steps of: (a) combining a chloride-containing acid and a source of phosphate ion to form a phosphate mixture wherein the phosphate ion to zirconium ion ratio is approximately 0.02:1-0.151:1 weight/weight; (b) combining the phosphate mixture with a zirconium ion source and mixing well to dissolve; (c) mixing a buffer at a molar ratio of approximately 1:1 with the zirconium; (d) combining the product of step (c) with aqueous aluminum salt to a Al:Zr molar ratio of about 1:1 to about 11:1 and an (Al+Zr):Cl molar ratio of about 0.3:1 to about 2.5:1; and (e) optionally, drying to form a powder thereby producing a polymerically stable zirconium composition.