石英粉,99.99% 500-1000微米

powder made of transparent quartz glass (ground fused quartz)
Powders made of transparent high-quality quartz glass are white powder with a mass fraction of SiO2 – 99.97 – 99.99% and a fraction size of 5 microns or more. The powder production technology ensures high chemical purity of the product.

Main characteristics of powders

Content of crystalline phases, % Coefficient of thermal expansion -1/degree K High chemical purity % Material density kg/m3
0 (3.5×10-7) SiO2-(99.97-99.99) 2.21×103
Powders are characterized by high chemical resistance to alkaline and acidic environments, as well as an increase in mechanical strength when heated.
SiO2 content – 99.99%

Impurity content,%:

Na K Cu Ti Ca Mn Mg Al Fe
3.09×10-4 5.5×10-4 0.05×10-4 1.7×10-4 1.0×10-4 0.18×10-4 9.3×10-4 7×10-4 1.51×10-4

The powder is intended for:

use as a filler for molding polymer press compositions used in the production of integrated circuits in microelectronics and ensures their operation in extreme conditions.
production of refractory products intended for laying out critical parts of glass furnaces: basins, ducts, 屏幕, ETC.
used as a material in the manufacture of thermal and corrosion protection elements in chemical engineering, and metallurgy, capable of operating at temperatures above 10000C in contact with molten glass and molten metals.
production of covers in the manufacture of high-temperature induction furnaces.