American Elements: Lithium Carbonate Supplier & Tech Info99% Lithium Carbonate is a water insoluble Lithium source that can easily be converted to other Lithium compounds, such as the oxide by heating (calcination). Carbonate compounds also give off carbon dioxide when treated with dilute acids. Lithium Carbonate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.. In its elemental form lithium's CAS number is 7439-93-2. The lithium atom has a radius of 152.pm and it's Van der Waals radius is 182.pm. Lithium 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 available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. 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. Lithium was first discovered by Johann Arvedson in 1817.