SiO2含量99%,容重1.75t/m3,可溶率0.4%,莫氏硬度7,磨损率0.3%,耐强酸,沸点2550℃,破碎率0.35%,耐碱性能良好,溶点1480℃,灰粉率0.25%,Zn含量0.005%,比重2.67,空隙率 43%。
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