Abstract
Titanium as transition metal is demonstrating the high mechanical strength, is light and corrosion resistant. The estimation of environmental impact of use of machine parts thats grains are freed from contact surface of titanium alloys by wear is buffling. Due to its catalytic action TiO 2 is nowadays added to: asphalt, concrete, exterior paints for elevation, self-cleaning glass and protective coatings. It is also present by clothes, food (E171), cosmetics (CI 77891) and textiles. The research on toxicity of titanium and its compounds is pointing at their neutral character, however an adverse impact is also being observed by nature. TiO 2 may affect air quality – it promotes free radicals and ozone origination. Properties and directions of titanium compounds use and their influence on pollutants circulation were described.
Highlights
Titanium compounds occur in the natural environment at most as neutral minerals: rutile, anatase and brookite
Titanium is a component of many minerals, notably oxides, titanates and silicates
Different sources of titanium compounds provide a diversity of forms, their occurrence and properties
Summary
Titanium compounds occur in the natural environment at most as neutral minerals: rutile, anatase and brookite. These metals are treated as neutral for human health and for the environment. Because production processes are fairly restricted, engineers have avoided the use of this material and have replaced it with others when possible. There is a belief that titanium in non-military branches of industry has found permanent costumers. This should strengthen the economic basis of titanium metallurgy and facilitate the further expansion of titanium application in the 21st century
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