| Title:  Aluminum Hydroxychloride CAS Registry Number:  1327-41-9 CAS Name:  Basic aluminum chloride Additional Names:  aluminum chlorohydroxide;  aluminum chlorohydrate Trademarks:  Chlorhydrol (Reheis);  Hyperdrol (Britcair);  Locron (Hoechst);  Phosphonorm (Medice) Literature References:  The generally accepted empirical formula is Al2(OH)5Cl.2H2O.  Prepd by electrolyzing solns of suitable Al salts:  FR 837862 and GB 509815 (both 1939 to I. G. Farben.); H. Huehn, W. Haufe, US 2392531 (1946); Andersen, US 2492085 (1949 to Elizabeth Arden).  Structural studies and physicochemical properties:  D. L. Teagarden et al., J. Pharm. Sci. 70, 758, 762 (1981).  Phosphate binding activity and use in hyperphosphatemia:  DE 3147869 (1983 to Nefro-Pharma), C.A. 99, 110747a (1983). Properties:  Glassy solid.  Dissolves in water, forming slightly turbid colloidal solns (up to 55% w/w).  pH of 15% aq soln ~4.3. Use:  In antiperspirants. Therap-Cat:  Astringent; antihyperphosphatemic. Keywords:  Antihyperphosphatemic; Astringent.  |