Europium(III) oxide is used as an agent for the manufacture of fluorescent glass. It can be used in the anti-counterfeiting phosphors in euro banknotes, red or blue phosphor in television sets. It shows an useful application as an activator for yttrium based phosphors.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.