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Yttrium

Yttrium is a chemical element with atomic number 39, and is represented by they symbol Y. It is a silvery metallic transition metal, and found commonly in rare-earth minerals, including the gemstone garnet and as a simulated diamond. Two yttrium compounds make the red color phosphors in tube-based color televisions. Yttrium is relatively stable in air, but shavings can ignite spontaneously in air if heated over 400 degrees centigrade.

Yttrium has more limited uses than many elements, but they include the proper function of infrared lasers; a replacement for thorium in propane lanterns (eliminating thorium's radioactive presence); the creation of phosphors for white LEDs; and as a secret element in a superconductor that functions above 90K. It has also been studied for use in making nodular cast iron, which has increased ductility. It may also give shock and thermal resistance to glass.

Yttrium salts may be carcinogenic, and in general compounds containing yttrium should be treated as toxic and hazardous. Yttrium is not normally found in human tissues, and plays no known biological role.

Web Resources On Yttrium

Webelements Periodic Table
Appearance & Characteristics of Yttrium

Book Resources On Yttrium

Biochemistry of Scandium and Yttrium - Part 1: Physical and Chemical Fundamentals by Chaim T. Horovitz
Biochemistry of Scandium and Yttrium - Part 2: Biochemistry and Applications by Chaim T. Horovitz

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