石英砂品位有三种:99.5%、99.9%、99.95%。99.9% 产品:铝<300ppm;铁<100ppm;钛<400ppm;烧失率0.07%;20-70目
硅99.95%,铝0.006%,铁0.0053%,镁0.0012%,钙0.009%,钾0.0069%,白度96
硅99.26%,铝0.14%,铁0.26%,钠0.13%
硅99.2%,铝0.37%,铁0.316%
硅99.5%,铁0.05%
40-140目,铁100ppm
4N高纯石英砂,70-140目,硅99.991%,白度93