Titanium oxide total of several?
TiO. Molecular weight: 63.88, black and yellow powder. The proportion of 4.93. Melting point 1750 ℃. Boiling point greater than 3000 ℃. Insoluble in water, nitric acid, soluble in sulfuric acid, dissolved in dilute hydrochloric acid part of the oxidation of trivalent titanium ions and produce hydrogen. Chemical properties are not stable, by the titanium dioxide in the carbon furnace heating, or zinc, magnesium, hydrogen and other reducing agent reduction in the system. For the production of titanate semiconductors.
Ti2O3 titanium dioxide purple powder, hexagonal crystal structure, lattice constant α = 0.5155nm. Containing oxygen 59.5% ~ 60.8% (at). Density 4.486g / cm3. Melting point 1900 ℃. Soluble in 40% Hydrofluoric acid, can be concentrated nitric acid erosion, but not concentrated hydrochloric acid, concentrated sulfuric acid erosion, nor for alkali erosion, and 30% (mass) hydrogen peroxide solution to produce a slightly yellow solution. ~ 300 ℃ into titanium pentoxide. Vacuum in 1600 ℃ heated titanium powder and titanium dioxide mixture or 1500 ℃ hydrogen reduction of titanium dioxide. Titanium ion itself is an excellent reducing agent.
TiO2 titanium oxide - titanium dioxide, is the white powder, is the best white pigment, commonly known as titanium dioxide. Previously, people mining titanium, the main purpose is to get titanium dioxide. Titanium white adhesion is strong, not easy to play It is used to make refractory glass, glaze, enamel, clay, high temperature resistant laboratory utensils, etc .. Titanium dioxide is the world's most white Of the material, l grams of titanium dioxide can be more than 450 square centimeters of the area painted white.It is more than the commonly used white pigment - zinc barium white also white 5 times, it is the best paint to paint white paint. The world as a pigment Of titanium dioxide, more than a year to several hundred thousand tons of titanium dioxide can be added to the paper, the paper white and opaque, the effect is 10 times larger than other substances, so the paper and art paper will add titanium dioxide.In addition, In order to make the color of the plastic lighter, so that artificial silk gloss soft, and sometimes to add titanium dioxide in the rubber industry, titanium dioxide is also used as a white rubber filler.
