RQ-2KFf

RQ-2KFf is particularly suited for quartz ingots and special optics.

Total content of impurities <10 ppm.

Chemical analysis

Typical values, ppm:

Al B Ca Cr Cu Fe K Li Mg Mn Na Ni Ti
3.9 0.07 0.12 0.01 0.01 0.10 0.12 0.30 0.10 0.01 0.30 0.01 2.7

Particle size distribution:

Mesh size Micron (µm) Limit (wt %)
> 120 > 125 < 3
200 - 120 75 - 125 < 77
< 200 < 75 > 20

RQ-2KFf 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.