Synthesis and thermal decomposition of antimony(III) oxide hydroxide nitrate
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The thermal decomposition of the only known antimony nitrate antimony(III) oxide hydroxide nitrate Sb4O4(OH)2(NO3)2, whose synthesis routes were reviewed and optimized was followed by TG-DTA under an argon flow, from room temperature up to 750°C. Chemical analysis (for hydrogen and nitrogen) performed on samples treated at different temperatures showed that an amorphous oxide hydroxide nitrate appeared first at 175°C, and decomposed into an amorphous oxide nitrate above 500°C. Above 700°C, Sb6O13 and traces of α-Sb2O4 crystallized.
Keywordsantimony oxides antimony(III) oxide hydroxide nitrate thermal decomposition X-ray diffraction
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