In today's mobile world, lithium is best known for its application in the lithium-ion rechargeable battery, ubiquitous in every laptop, cell phone or tablet you are likely to run into. The lightest of all solid elements and the most reactive of all metals, lithium is important mainly because of its chemical properties and not its physical properties. It reacts slowly but violently with water to form Lithium hydroxide, so pure lithium cannot be exposed to ambient air for too long. However, its alloys with some transition metals are more stable and are used in specialized aircraft parts. Lithium's solubility in organic solvents and its reactivity are also used in the organic chemical synthesis industry.



Density ρ

0.54 g/cm³ at 20 °C


Elastic modulus E

4.91 GPa at 20 °C

Hardness, Brinell HB

5 [-] at 20 °C

Poisson's ratio ν

0.36 [-] at 20 °C

Tensile strength Rm

15 MPa at 20 °C


Melting point Tm

180.54 °C

Specific heat capacity cp

3560 J/(kg·K) at 20 °C

Thermal conductivity λ

84.8 W/(m·K) at 20 °C


Electrical resistivity ρel

9.29E-8 Ω·m at 20 °C

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.