H₃SbO₄, known as antimony acid, is a chemical compound composed of antimony, hydrogen, and oxygen. It is a weak acid that can form salts called antimonates when it reacts with bases. Antimony acid is often studied in the context of its potential applications in materials science and catalysis. In its solid form, H₃SbO₄ appears as a white crystalline substance. It is soluble in water and can be used in various chemical reactions. The compound is of interest in the field of inorganic chemistry, particularly for its unique properties and behavior in different chemical environments.