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2Â¥2013-06-08 15:45:35
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601379902: ½ð±Ò+2, ²©Ñ§EPI+1, ¡ïÓаïÖú, »¹ÊÇûÓнâ¾ö×îÖØµãµÄÎÊÌâ 2013-06-13 12:40:45
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Physical Properties of Silicon Atomic Mass Average: 28.0855 Boiling Point: 2628K 2355¡ãC 4271¡ãF Coefficient of lineal thermal expansion/K-1: 4.2E-6 Conductivity Electrical: 2.52E-12 106/cm ¦¸ Thermal: 1.48 W/cmk Density: 2.33g/cc @ 300K Description: Hard dark gray non-metal. Elastic Modulus: Bulk: 100/GPa Youngs: 47/GPa Enthalpy of Atomization: 439.3 kJ/mole @ 25¡ãC Enthalpy of Fusion: 46.44 kJ/mole Enthalpy of Vaporization: 439 kJ/mole Flammablity Class: Combustible Solid in powder form Freezing Point: see melting point Hardness Scale Mohs: 6.5 Heat of Vaporization: 384.22kJ/mol Melting Point: 1683K 1410¡ãC 2570¡ãF Molar Volume: 12.05 cm3/mole Optical Reflectivity: 28% Physical State (at 20¡ãC & 1atm): Solid Specific Heat: 0.71J/gK Vapor Pressure = 4.77@1410¡ãC |

4Â¥2013-06-09 10:48:10













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