text: Production of titanium metal The world's supply of titanium metal, about 250,000 tons per year, is made from . The conversion involves the reduction of the tetrachloride with magnesium metal. This procedure is known as the Kroll process:
  In the Hunter process, liquid sodium is the reducing agent instead of magnesium.
  Production of titanium dioxide
  Around 90% of the  production is used to make the pigment titanium dioxide (). The conversion involves hydrolysis of , a process that forms hydrogen chloride:
  In some cases,  is oxidised directly with oxygen:
  Smoke screens
  It has been used to produce smoke screens since it produces a heavy, white smoke that has little tendency to rise. "Tickle" was the standard means of producing on-set smoke effects for motion pictures, before being phased out in the 1980s due to concerns about hydrated HCl's effects on the respiratory system.
  Chemical reactions
  Titanium tetrachloride is a versatile reagent that forms diverse derivatives including those illustrated below.
  Alcoholysis and related reactions
  A characteristic reaction of  is its easy hydrolysis, signaled by the release of HCl vapors and titanium oxides and oxychlorides. Titanium tetrachloride has been used to create naval smokescreens, as the hydrochloric acid aerosol and titanium dioxide that is formed scatter light very efficiently. This smoke is corrosive, however.