The effects of doping of sodium acetate upon the habit changes of NaBrO3 crystals have been investigated. The crystals were grown from aqueous solution under the following conditions: (i) supersaturations. ln (C/C-e) = 0-0.4, (C-e: equilibrium mol fraction): (ii) growth temperatures, 15-43degreesC. The gross morphologies of crystals have taken on three distinct forms: tetrahedral {1 1 1} habit, cubic {1 1 0} and interniediate ({1 1 1} + {1 0 0}) habits. The result of habit changes was shown in a plot of growth temperature against supersaturation as compared to the results from nondoping and doping of 1.15 mol% acetic acid (J. Crystal Growth 158 (1996) 336 J. Crystal Growth 212 (2000) 507). The dependency of the growth rates upon the growth temperatures was investigated under the conditions where the supersaturation was kept constant. It was found that the growth rates of {100} were drasticall reduced at higher growth temperatures. (C) 2002 Elsevier Science B.V. All rights reserved.