YN 171(OTTO) Yttrium iron oxide nanopowder, <100 nm particle size (BET), 99.9% Cas 12063-56-8 - used in the preparation of fuel cells and solar energy materials. YN 171(OTTO) Yttrium iron oxide nanopowder, <100 nm particle size (BET), 99.9% Cas 12063-56-8 - used in filters, transmitters, transducers, solid state lasers in faraday rotators and in non-linear optics. It finds application in polymers, textiles, fuel cell layers, composites and solar energy materials, bio nano materials and bio sensors. YN 171(OTTO) Yttrium iron oxide nanopowder, <100 nm particle size (BET), 99.9% Cas 12063-56-8 - used in superconductors.