Microcomputers are the most common kind of computers in use as of 2014. The term âmicrocomputerâ was introduced with the advent of systems based on single chip microprocessors. The best-known early system was the Altair 8800, introduced in 1975.
The present invention relates to highly dispersible silica which has a high surface area, a process to manufacture the aforesaid silica and its use as a tire filler for utility vehicles, motor cycles and high speed vehicles. The use of precipitated silicas in elastomer mixtures such as tires has been known for some time.
Silica is converted to silicon by reduction with carbon.Fluorine reacts with silicon dioxide(SiO2) to form SiF4 and O2 whereas the other halogen gases (Cl2, Br2, I2) are essentially unreactive. SiO2 is attacked by hydrofluoric acid (HF) to produce hexafluorosilicic acid: SiO2 + 6 HF â H2SiF6 + 2 H2O.