Zinc complexes of basic aluminum bromides and methods of making

Details Zinc complexes of basic aluminum bromides and methods of making Zinc complexes of basic aluminum bromides and methods of making

1975-06-03

1976-03-30

Stern, Edward

Chemistry of inorganic compounds

Halogen or compound thereof

Plural metal or metal and ammonium containing

423463, 424 47, C01G 2504, C01F 700, C01F 748, C01G 904

Patent

active

039475573

ABSTRACT:
Alcohol soluble complexes of basic aluminum bromides may be prepared by adding zirconyl or zinc bromide or chloride, or zirconyl hydroxychloride or hydroxybromide, or mixtures of the above chlorides and bromides to an aqueous solution of five-sixths basic aluminum bromide, and drying the resulting mixture to a substantially friable solid, such as by vacuum or spray drying. The complexes preferably have an Al/Zn or Al/Zr mol ratio of about 3:1 to 20:1, and the complex solids preferably contain about 15 to 30 weight percent water by Karl Fischer analysis. Such complex solids have a high degree of solubility in anhydrous alcohol and a high compatibility with halogenated hydrocarbons. These properties make the complexes suitable for aerosol formulations and particularly antiperspirant compositions.

REFERENCES:
patent: 2854382 (1958-09-01), Grad
patent: 2906668 (1959-09-01), Beekman
patent: 3405153 (1968-10-01), Jones et al.

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