Tantalum pentoxide, also known as tantalum(V) oxide, is the inorganic compound with the formula Ta2O5.
T 1203 (OTTO) Tantalum oxide, 99.995% Cas no 1314-61-0 - used in automotive electronics, cell phones, thin film components, and electronic circuitry. In addition, Tantalum(V) oxide has been utilized in the fabrication of the glass of photographic lenses.