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Yttrium, 39Y | |
Atomic number (Z) | 39 |
Phase at STP | solid |
Melting point | 1799 K (1526 °C, 2779 °F) |
Boiling point | 3203 K (2930 °C, 5306 °F) |
Density (near r.t.) | 4.472 g/cm3 |
when liquid (at m.p.) | 4.24 g/cm3 |
Heat of fusion | 11.42 kJ/mol |
Heat of vaporization | 363 kJ/mol |
Molar heat capacity | 26.53 J/(mol·K) |
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Yttrium Oxide
Yttrium Oxide, also known as Yttria, is an excellent mineralizing agent for spinel formation. It is an air-stable, white solid substance. It has a high melting point(2450oC), chemical stability, low coefficient of thermal expansion, high transparency for both visible (70%) and infrared (60%) light, low cut off energy of photons. It is suitable for glass, optic and ceramic applications.