Donghaixian GoalidaQuartz ProductsCO.,LTD. is a major producer of fused silica enterprises, These products are widely used as raw materials (optical) glass, fiber, electronics, semiconductor epoxy molding compounds (EMC). paint and coatings, ceramics, chemicals, construction, casting, precision casting refractories and abrasives industry, detailed specifications are as follows :

Fused silica Lump  1-10cm
1st:SiO2:99.9min;Fe2O3:15ppmmax;K2O:10ppmmax;
Na2O:10ppmmax;Al2O3:30ppmmax;Li2O:1.0ppmmax; PH: 5.8
  2nd:SiO2:99.8min;Fe2O3:60ppmmax;K2O:30ppmmax;
Na2O:30ppmmax;Al2O3:50ppmmax;Li2O:1.0ppmmax; PH: 5.8
  3rd: SiO2:99.5min;Fe2O3:100ppmmax;K2O:50ppmmax;
Na2O:50ppmmax;Al2O3:80ppmmax;Li2O:2.0ppmmax; PH: 5.8
Fused silica sand  
SPEC
A.3-100mm, 5-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0.5mm, 1-0.2mm 0-0.5mm, 0.5-0.2mm, 0.5-0.1mm, 0.2-0.1mm, 0.5-1mm.
B.-4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh, -50+100mesh, -120F, -200F, -325F, -400F, -600F.

1st :SiO2MIN99.8% ;Fe2O3MAX 50PPM ;Al2O3MAX 300PPM; K2O MAX40PPM ;Na2O MAX40PPM
2nd :SiO2MIN99.7% Fe2O3MAX 100PPM :Al2O3 MAX300PPM :K2OMAX 50PPM :Na2OMAX 50PPM