Symbol: Hg
Atomic number: 80
Atomic weight: 200.59 (2)
Group in periodic table: 12
Group name:
Period in periodic table: 6
Block in periodic table: d-block
CAS registry ID: 7439-97-6

Description

Standard state: liquid at 298 K (the heaviest known elemental liquid) Colour: silvery white

Physical Properties of Mercury

• Atomic Mass Average: 200.59

• Boiling Point: 630K 357°C 675°F

• Coefficient of lineal thermal expansion/K^-1: 181E^-6

• Conductivity

  Electrical: 0.0104 10⁶/cm Ω
  Thermal: 0.0834 W/cmK

• Density: 13.546g/cc @ 300K

• Description:

  Silver colored liquid transition metal.

• Elastic Modulus:

  • Bulk: 25/GPa

• Enthalpy of Atomization: 61.5 kJ/mole @ 25°C

• Enthalpy of Fusion: 2.29 kJ/mole

• Enthalpy of Vaporization: 56.9 kJ/mole

• Flammablity Class: Noncombustible Liquid

• Freezing Point: see melting point

• Hardness Scale

  • Mohs: 1.5

• Heat of Vaporization: 59.229kJ/mol

• Melting Point: 234.43K -38.72°C -37.7°F
   

• Molar Volume: 14.81 cm³/mole

• Optical Reflectivity: 73%

• Optical Refractive Index: 1.000933

• Physical State (at 20°C & 1atm): Liquid

• Specific Heat: 0.139J/gK

• Vapor Pressure = 0.0002Pa@-38.72°C

Mercury Data