Commodity Code

yttrium oxide

http://resource.geosciml.org/classifier/cgi/commodity-code/yttrium-oxide

definition Yttrium oxide, also known as yttria is an air-stable, white solid substance. Used to make Eu:YVO4 and Eu:Y2O3 phosphors that give the red color in color TV picture tubes, to make yttrium iron garnets used in microwave filters, and to make the high temperature superconductor YBa2Cu3O7. more like this
notation
02.04.05.12 more like this
Y2O3 more like this
source http://en.wikipedia.org/wiki/Yttrium_oxide more like this
type
Resource
Concept
broader chemical oxide product
narrower yttrium oxide
in scheme commodity code
is primary topic of yttrium oxide