Antimony

Antimony is a silvery-grey and brittle metal. Two stable isotopes of Antimony exist in nature – 121Sb and 123Sb.

Antimony is widely used in batteries, solder, bearings, semiconductors, etc. Around 50% of pure antimony currently produced is used for hardening lead, to make alloys which are then used (mostly) in batteries. However, the hardened alloy also finds use in small arms bullets (and tracer rounds) and cable sheathing among others. Antimony makes an excellent alloying material for other metals, providing increased hardness and mechanical strength.