Titanium is best known for its corrosion resistance, which is almost as good as platinum. Titanium is not corroded by dilute sulfuric acid, dilute hydrochloric acid, chlorine gas, chlorine solution and most organic acids, but it can still be dissolved by concentrated acid. Although the potential-ph diagram below indicates that titanium is a very active metal in thermodynamics, it reacts very slowly with water and air.
Titanium powder, titanium hydride powder: purity: 95-99.4% and other specifications: titanium powder: product is silver gray irregular powder, has a large suction capacity, high temperature or spark conditions flammable.
When exposed to hot air, titanium creates a protective film of blunt oxides that prevents oxidation from continuing. In the initial formation, the protective layer is only one to two nanometers thick, but will slowly continue to thicken; Up to 25 nanometers thick in four years. But when titanium is exposed to hot air, it easily reacts with oxygen.
This reaction takes place when the air temperature reaches 1200 ℃, whereas in pure oxygen it takes as little as 610℃ to produce titanium dioxide. So you can't melt it in the air, because it burns before it gets to the melting point, so you can only melt it in an inert gas or in a vacuum. At 550 degrees Celsius, titanium binds to chlorine gas. Titanium also binds to other halogens and absorbs hydrogen.
Titanium can be found in meteorites and has been detected in the sun and m-type stars; M-type stars are the coldest stars, with a surface temperature of 3,200 degrees Celsius. The Apollo 17 mission brought back rocks from the moon that contained 12.1 percent titanium dioxide. Titanium can also be found in coal ash, plants and even the human body.
Titanium is an alloy element of steel (ferrotitanium), titanium will reduce the grain size of steel, and as a deoxidizer titanium will reduce the oxygen content of steel; Adding titanium to stainless steel reduces the carbon content. Titanium is often alloyed with other metals such as aluminum (modified grain size), vanadium, copper (hardened), magnesium, and molybdenum. Titanium mechanical products (sheet, plate, tube, wire, forgings, castings) have applications in industry, aerospace, leisure and emerging markets. Titanium powder is used in pyrotechnics to provide bright burning particles.