Magnesium

1. The high temperature at which magnesium burns makes it a useful tool for starting emergency fires during outdoor recreation.
Other related uses include flashlight photography, flares, pyrotechnics and fireworks sparklers.
2. To photo engrave plates in the printing industry.
3. In the form of turnings or ribbons, to prepare Grignard reagents, which are useful in organic synthesis.
4. As an additive agent in conventional propellants and the production of nodular graphite in cast iron.
5. As a reducing agent for the production of uranium and other metals from their salts.
6. As a sacrificial (galvanic) anode to protect underground tanks, pipelines, buried structures, and water heaters.