The Hannover Messe (English: Hanover Fair) is the world's biggest industrial fair. It is held on the Hanover fairground in Hanover, Germany. Typically, there are about 6,500 exhibitors and 250,000 visitors.
The Hannover Messe started in 1947 in an undamaged factory building in Laatzen, south of Hanover, by an arrangement of the British military government in order to boost the economic advancement of post-war Germany. The first fair was colloquially known as Fischbrötchenmesse (Fischbrötchen fair) due to the exemptions in food rationing for the fair at this time. It proved hugely successful and was hence repeated on a yearly basis, contributing largely to the success of the Hanover fairground in replacing the then-East German city of Leipzig as the new major fair city for West Germany.
Soft, odorless, tasteless white powder with strong hiding and coloring power, melting point 1560 ~ 1580℃. Insoluble in water, dilute inorganic acid, organic solvent, oil, slightly soluble in alkali, soluble in concentrated sulfuric acid. It turns yellow when heated and white when cooled. Rutile type (R type) has a density of 4.26g/cm3 and a refractive index of 2.72. R titanium dioxide has the characteristics of good weather resistance, water resistance and not yellowing, but the whiteness is slightly worse. Anatase type (type A) has a density of 3.84g/cm3 and a refractive index of 2.55. Type A titanium dioxide has poor light resistance and is not resistant to weathering, but its whiteness is better. In recent years, it has been found that nano-scale ultrafine titanium dioxide (usually 10 ~ 50 nm) has semiconductor properties, high stability, high transparency, high activity and high dispersion, and no toxicity and color effect.
Titanium Dioxide,Polymer Additives Powder,Plastic Additives Powder,Titanium Dioxide White
Hengshui Yimei New Material Technology Co.,Ltd , https://www.oxidizedpewax.com