Quartz sand is a hard, wear-resistant, chemical stability of silicate minerals, the main mineral component is SiO2, its color is white or colorless, translucent, hardness 7, no cleavage of brittle, conchoidal fracture, oil sheen, a density of 2.65, packing density (1-20 mesh head for the 1.6,20-200 1.5), its chemical, thermal and mechanical properties have obvious anisotropy, and do not dissolve in acid, slightly soluble in KOH solution , melting point 1750 ℃. Surface area of quartz sand is very important, and its surface area by BET method of detection data detected only result is authentic, there are a lot of domestic equipment can only do a direct comparison method of testing, and now the country will also be eliminated. Unity at home and abroad BET multi-point BET method, worked out at home and abroad than the BET surface area measurements are based on test method standards-based, see our national standard (GB / T 19587-2004) - Principles of gas adsorption BET Determination of specific surface area of solid material way. In fact, the specific surface area is more time-consuming testing work, the adsorption capacity of the sample, some of the test samples may need to spend a full day, if the testing process does not achieve a fully automated, all the time that testers can not leave, and to high concentration, observation instrument panel, control knobs, too easy to fail the testing process will lead, it will waste a lot of valuable time testers. F-Sorb 2400 analyzer is the real specific surface area BET method can achieve detection instruments (both direct comparison method) is more important than the surface area of F-Sorb 2400 analyzer is fully automated so far the only intelligent detection of the specific surface area equipment, the test results consistent with the international high stability is also very good, while reducing human error and improve the accuracy of test results. 
 Quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgical, construction, chemical, plastics, rubber, abrasives, grinding wheel, grinding and other industries. May Automotive, train transport, air transport, water transport. Industrial production is generally 50KG or 25KG bag packaging and export tons. 
 Common Specifications :0.5-1 .0 mm 0.6-1.2mm 1-2mm 2-4mm 4-8mm 8-16mm 16-32mm. (Mm to mm units) Main Specifications :4-6 ,6-10 mesh ,10-20 mesh mesh ,20-40 mesh ,40-70 ,70-140 mesh and other projects (in mesh units)