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Gallium (31Ga69.723)
[7440-55-3]
[7440-55-3]
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Elemental Form| Gallium is grayish when solid: tin or silvery colored when molten. It has one of the longest liquid ranges of any metal, has a low vapor pressure even at high temperatures and shows a tendency to remain in a supercool state. Gallium is one of four metals that can be molten at room temperature. It has a higher density as a liquid than as a solid. Gallium can be alloyed with most metals and is frequently used as such to reduct the melting point. | ||||
| Melting Point | 29.8°C | Thermal Conductivity | 0.08cal/cm2/cm/s/°C | |
| Boiling Point | 2403°C | Density | 5.91g/cm3 | |
| Specific Heat @ 25°C | 0.088cal/g°C | Heat of Fusion | 19.18cal/g | |
| Heat of Vaporization | 950-1020cal/g | Atomic Volume | 11.8W/D | |
| First Ionization Energy | 138K-cal/g-mole | Electronegativity | 1.6Pauling's | |
| Covalent Radius | 1.26Angstroms | Mohs Hardness @ 20°C | 1.5-2.5 | |
| Cubic Coefficient of Expansion @ 20°C | 5.4x10-6K-1 | Electrical Resistivity | 53.4µΩ-cm | |
| Crystal Structure | Orthorhombic | Vapor Pressure @ 2400°C | 760mmHg | |
