Telluric acid is a chemical compound with the formula H2TeO4. It is an oxoacid of tellurium, a metalloid element. Telluric acid is known for its strong acidic properties and is typically found in a colorless, syrupy liquid form. It can be produced through the oxidation of tellurium compounds. In its applications, telluric acid is primarily used in the synthesis of other tellurium compounds and in various chemical reactions. It is less common than other acids but plays a role in specialized fields such as inorganic chemistry and materials science.