Antimony Pentoxide (Sb₂O₅) is a yellow to off-white inorganic powder consisting of antimony in the +5 oxidation state combined with oxygen. It is typically supplied as a finely divided solid with high purity (≥99.5 %) for industrial, laboratory, and specialty applications. Commercial products may exist in a lightly hydrated form (Sb₂O₅ · nH₂O)