Antimony, a silvery-white metal, is brittle with a large crystalline structure which make it somewhat difficult to work with. It can be cast to form rod but is too brittle to effectively form wire of small diameter. Its unmalleability make it unsuitable for rolling to form sheet or foil. Sheet could possibly be cast, but care must be taken as melting antimony releases toxic fumes. Antimony is mostly used in alloying other metals such as lead and tin, and as a trace element in copper-base alloys. In its high purity form it is used in the electronics and semiconductor industries.

Typical Properties:

Melting Point: 630.7 ^oC

Boiling Point: 1587 ^oC

Density: 6.697 gm/cm³

Atomic Weight: 121.75

Crystal Structure: Hexagonal (rhombohedral equivalent); a = 0.4307 nm, c = 1.1273 nm 

Coefficient of Linear Expansion: 8 to 11 um/m⋅ K at 0 ^oC

Specific Heat: 0.207 kJ/kg⋅ K at 25 ^oC

Latent Heat of Fusion: 163.17 kJ/kg

Latent Heat of Vaporization: 1602 kJ/kg

Thermal Conductivity: 25.9 W/m⋅ K

Electrical Resistivity: 370 nΩ ⋅ m at 0 ^oC

Magnetic Susceptibility: Volume: -10.2 x 10^-6 mks

Spectral Reflectance: 70% for λ = 58.9 µm

Tensile Strength: 11.40 MPa

Hardness: 30 - 58 HB

Elastic Modulus: Tension - 77.759 GPa, Shear - 19 GPa

Resistance to Specific Corroding Agents:

Corroding Agent                            Resistance

Alkalis and alkali salts                 General attack

Ammonia                                  Resistant

Aqua Regia                               Severe general attack

Carbon Dioxide                          Resistant

Hydrochloric Acid                       Moderate attack in presence of air

Hydrofluoric Acid                        Resistant

Nitric Acid                                 Severe general attack