RQ-3K

RQ-3K is particularly suited as a low-cost raw material for the outer layer of crucibles for photovoltaic industry and for small and medium diameter quartz tubes.

Total content of impurities <12 ppm.

Chemical analysis
Typical values, ppm:

Al B Ca Cr Cu Fe K Li Mg Mn Na Ni Ti
5,2 0,08 0,39 0,01 0,01 0,39 0,25 0,29 0,11 0,01 0,5 0,01 2,8

Particle size distribution:

Mesh size Micron (µm) Limit (wt %)
> 50 > 300 < 2
200 - 50 75 – 300 > 96
< 200 < 75 < 2

RQ-3K is manufactured from unique Quartz deposit in Kyshtym, Russia.

Kyshtym quartz has the highest chemical purity and good transparency, and for more than 50 years been successfully used as raw material for quartz tubes of various diameter, ingots and crucibles for photovoltaic and semi-conductor industries.