Yttrium
| Formula / Notation | Y |
|---|---|
| Also Known As | Y, yttrium metal, rare earth metal group 3 |
What is Yttrium?
A silvery-metallic transition metal (though often classified with rare earths) with atomic number 39 and symbol Y. Yttrium is used in phosphors for TV screens, in yttrium-aluminum garnet (YAG) lasers, and as an additive to strengthen alloys. Named after Ytterby, Sweden.
Formula & Notation
Other Names / Synonyms: Y, yttrium metal, rare earth metal group 3
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A silvery-metallic transition metal (though often classified with rare earths) with atomic number 39 and symbol Y. Yttrium is used in phosphors for TV screens, in yttrium-aluminum garnet (YAG) lasers, and as an additive to strengthen alloys. Named after Ytterby, Sweden.
Yttrium-aluminium garnet (YAG) is used as the gain medium in Nd:YAG lasers for cutting and welding. Yttrium oxide is used in high-temperature ceramics and as a stabiliser in zirconia. Yttrium-90 is used in cancer radiotherapy.
Yttrium compounds have low to moderate toxicity. Radioactive yttrium-90 used in medical therapy is a beta emitter requiring appropriate radiation safety precautions. Yttrium dust should not be inhaled.
The formula or notation for Yttrium is: Y