Rutile, the chemical formula is TiO2, the crystal belongs to the tetragonal crystal oxide mineral, and one of the main minerals containing titanium. Tetragonal crystal system, usually in the shape of a square column or needle crystal, the aggregate is granular or dense. Dark red, brown, yellow or orange, iron-rich is black; streaks yellow to light brown. Diamond shiny, iron rutile with a semi-metallic luster. It is brittle, with a hardness of 6 to 6.5 and a density of 4.2 to 4.3 g/cm3. The density of iron, strontium and strontium is increased, and the highest is 5.5 g/cm3 or more. It can be dissolved in hot phosphoric acid, and after cooling and dilution, sodium peroxide can be added to make the solution brown (titanium reaction). Rutile can be produced in gneiss, pegmatite, eclogite (flash) rock and sand ore.
Rutile microscopic needle crystals are often encased in crystals such as quartz, phlogopite, corundum, etc., especially in corundum, which are star-shaped and star-shaped to form star-shaped rubies and star-shaped sapphires. Rutile is mainly used to extract titanium. Manufacture of white pigment titanium dioxide. A small amount of rutile can be used as a gemstone, as well as a semiconductor and detector. The rutile type titanium dioxide type titanium dioxide br-601 can be made into a multi-grade inorganic composite coating such as titanium, silicon or aluminum and a general-grade rutile type titanium dioxide which has been treated with ultra-fine treatment, and has high weather resistance. And opacity, widely used in plastics, rubber, paper and advanced coatings, more suitable for polymer systems such as steel profiles, masterbatch and powder coatings, as well as outdoor high weathering environments such as solvent-based paints and inks. Rutile Titanium Dioxide is a white pigment with excellent performance. Due to its excellent properties, such as high hiding power, high weather resistance and high gloss, it is increasingly favored by paint formulators. The rutile type titanium dioxide has a refractive index of 2.75 [1], which is the most refractive index of all white pigments, and thus has the strongest hiding power. Factors affecting the opacity of rutile titanium dioxide In addition to its own refractive index, particle size, particle size distribution and dispersibility, other components in the coating have a great influence on the hiding power of rutile titanium dioxide.
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