Lithium (3)

  • Lithium salts are extracted from the water in mineral springs, brine pools and brine deposits.
  • The metal is produced through electrolysis from a mixture of fused 55% lithium chloride and 45% potassium chloride.
  • Lithium is highly reactive and flammable. It is stored in mineral oil, petroleum jelly.
  • Because of its high reactivity, lithium never occurs freely in nature, and instead, only appears in compounds, which are usually ionic.
  • Lithium-6 deuteride serves as a fusion fuel in staged thermonuclear weapons.
  • Industrial applications, including heat-resistant glass and ceramics, lithium grease lubricants, flux additives for iron, steel and aluminium production, lithium batteries and lithium-ion batteries.
  • Soft enough to be cut with a knife. When cut, it possesses a silvery-white color that quickly changes to gray due to oxidation into lithium oxide.
  • It has one of the lowest melting points among all metals (180°), it has the highest melting and boiling points of the alkali metal
  • It is the least dense of all elements that are solid at room temperature, the next lightest solid element (potassium) being more than 60% denser.
  • Lithium can float on the lightest hydrocarbon oils and is one only three metals that can float on water, the other two being sodium and potassium.
  • Lithium has a mass specific heat capacity of 3.58 kilojoules per kilogram-kelvin, the highest of all solids. Because of this, lithium metal is often used in coolants for heat transfer applications.
  • Lithium’s co-efficient of thermal expansion is twice that of aluminium and almost four times that of iron.
  • The only metal which reacts with nitrogen under normal conditions.