Y

Yttrium

Quick Reference
Formula / NotationY
Molecular Weight88.91
CategoryElements

What is Yttrium?

Yttrium is a silvery-metallic transition metal and rare earth element. Despite its classification, it is found in most rare earth mineral deposits. It is named after Ytterby, Sweden. Yttrium-90 is a radioactive isotope used in cancer therapy.

Formula & Notation

Y

Properties & Characteristics

Appearance: silvery-white metal. Melting point: 1526 °C. Boiling point: 3336 °C. Density: 4.47 g/cm³.

Uses & Applications

Yttrium aluminium garnet (YAG) laser crystals. Phosphors in colour television tubes and LED displays (red phosphor). Yttria-stabilised zirconia (YSZ) for thermal barrier coatings in jet engines and solid oxide fuel cells. Y-90 in targeted cancer radiotherapy.

Safety Information

Yttrium compounds are mildly toxic; irritant to eyes, skin, and respiratory tract. Radioactive Y-90 is handled under radiation safety protocols.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Yttrium
Formula Y
Molecular Weight 88.91
Category Elements

Frequently Asked Questions

Yttrium is a silvery-metallic transition metal and rare earth element. Despite its classification, it is found in most rare earth mineral deposits. It is named after Ytterby, Sweden. Yttrium-90 is a radioactive isotope used in cancer therapy.

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