Rutile
Introduction:
Introduction:Rutile is one of the main minerals containing titanium.Tetragonal system,often with intact four colummar of needle-like crystal,aggregates were granular or dense block,Dark red,brown red,yellow or orange,iron-rich were black;streaks yellow to light brown.King Kong Iuster,iron rutile was semi-metallic luster.Brittle,hardness 6-6.5,density 4.2-4.3/cm3,rich in iron,niobium,tantalum density increased,the higher up to 5.5g/cm3above.Can be dissolved in hot phosphoric acid,cooling,diluted by adding sodium peroxide solution can become brown(titanium reaction).
Application:
Rutile is the more pure titanium dioxide,titanium dioxide in general,more than 95%,is an important raw material for refining titanium,but less reserves in the crust.It is widely used in military aviation,aerospace,navigation,machinery,chemical industry,seawater deselination and so on.It has the characteristics of high temperature resistance,low temperture resistance,corrosion resistance,high strength and small specific gravity.Rutile itself is a high-grade welding electrodes must be one of the raw materials.
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