cristobalite silica sand quartz sand
USD $210 - $230 /Ton
Min.Order:1 Ton
Lingbao Yuxin Quartz Mining Co., Ltd.
cristobalite silica sand quartz sand
Cristobalite silica powder is natural quartz by temperature control(600-477 degrees C)is calcined into the quartz,the quality grading,grinding,purification,powder grading become cristobalite silica powder,the crystal phase to tetragonal,with quartz consistently excellent electrical properties,and the whiteness,brightness high,density of small,relatively low hardness of quartz crystal,refractive index is very close to most of the resin properties,so the high-grade coating,wood coating,adhesives,rubber and plastic area have excellent performance,especially as applied to fill the grain weight of rubber and plastic is filled,in massive cost reduction at the same time minimum to reduce the level of transparency and other properties of system;used in wood coating and adhesive system on the final product transparency also had an outstanding performance;the quartz holding rate is high,hot drum coefficient of 54*10K
Chemical composition
Chemical Branch(%) | SiO2 | ≥99.2 |
Fe2O3 | ≤0.008 | |
Al2O3 | ≤0.03 | |
Add Water (min) | ------ | |
Water Extract | EC (us/cm) | ≤5 |
Na+ (ppm) | ≤3 | |
Cl- (ppm) | ≤4 | |
PH Value | 7 | |
Density | 2.32-2.36 | |
Water Content % | ≤0.10 | |
Mohs scale of hardness | 6.5-7 | |
Whiteness % | ≥93 | |
Index of refraction | 1.48 | |
Brightness | 91-95 |
Size
Specifications
Specific Surface Area
1) Precision casting mold powder
2) High-grade paint, coatings, plastics, rubber, anti slip paint, floor paint
3) Ceramics
4) Washing powder
A: 25kgs quartz powder per pp bag, 1 metric ton per jumbo bag.
B: 200kgs quartz powder per steel drum.
C: 250kgs quartz powder per steel drum.
Recommend 20 feet container, maximum loading capacity 24 tons quartz powder.
Through domestic counterparts pioneered multi-level material crushing, grading, cleaning, removing iron, screening and purification by fully automated micro-manage production processing equipment, we produce 20,000 tons refined sand, 5,000 tons multipurpose micro silica powder and 30,000 tons super white, ultra-thin special glass sand annually.