METHOD FOR PRODUCTION OF ANTIMONY OXIDE (III) OF CUBIC MODIFICATION FROM WATER SOLUTIONS Russian patent published in 2012 - IPC C01G30/00 

FIELD: chemistry.

SUBSTANCE: invention refers to processing of antimony raw material and can be used in production of pyro- and piezoelectric devices and parts, i.e. solar batteries, semiconductor light sources, luminescent glass, semiconductor matrix for gas sensors. Water solution of antimony trifluoride SbF₃ is mixed with the water solution of ammonium fluoride NH₄F with mole ratio of antimony trifluoride and ammonium fluoride of 1: (10-30). Then ammonium hydroxide NH₄OH is added to the resulting solution until pH=8 is reached for sedimentation of antimony oxide (III) of cubic modification. The resulting sediment is filtered, washed and dried at 25-90°C. Method simplification is achieved due to ensuring the conditions for sedimentation reaction.

EFFECT: excluded possibility of byproducts formation, and also, due to use of base materials, that do not require pre-treatment.

1 dwg, 3 dwg, 2 ex