Tin dioxide (tin(IV) oxide), also known as stannic oxide, is the inorganic compound with the formula SnO2. The mineral form of SnO2 is called cassiterite, and this is the main ore of tin.
TO 095 (OTTO) Tin oxide nanopowder, APS 20 nm, 99.99% - used in sensors of combustible gases including carbon monoxide detectors.