Lithium, atomic no. 3, symbol Li, weight at 6.941, is a member of the alkali group of metals. It has the highest specific heat of any material and the highest electrochemical potential. This makes it important in applications involving heat transfer and as the anode in batteries.
Lithium is a dopant in advanced optical glass. It is used as an alloy in light weight metals. Lithium stearate is a common high temperature lubricant.
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