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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.
|Property Name||Property Value||Property Name||Property Value|
|Atomic Code||(31Ga69.723)||Atomic Volume||11.8W/D|
|CAS #||7440-55-3||First Ionization Energy||138K-cal/g-mole|
|Melting Point||29.8°C||Covalent Radius||1.26Angstroms|
|Thermal Conductivity||0.08cal/cm2/cm/s/°C||Mohs Hardness @ 20°C||1.5-2.5|
|Boiling Point||2403°C||Cubic Coefficient of Expansion @ 20°C||5.4x10-6K-1|
|Specific Heat @ 25°C||0.088cal/g°C||Crystal Structure||Orthorhombic|
|Heat of Fusion||19.18cal/g||Vapor Pressure @ 2400°C||760mmHg|
|Heat of Vaporization||950-1020cal/g|