SYNTHESIS AND THERMAL-DECOMPOSITION OF ANTIMONY(III) OXIDE HYDROXIDE NITRATE

The thermal decomposition of the only known antimony nitrate antimony( III) oxide hydroxide nitrate Sb4O4(OH)(2)(NO3)(2), whose synthesis rou tes were reviewed and optimized was followed by TG-DTA under an argon flow, from room temperature up to 750 degrees C. Chemical analysis (fo r hydrogen and nitrogen) performed on samples treated at different tem peratures showed that an amorphous oxide hydroxide nitrate appeared fi rst at 175 degrees C, and decomposed into an amorphous oxide nitrate a bove 500 degrees C. Above 700 degrees C, Sb6O13 and traces of alpha-Sb 2O4 crystallized.