普通石英砂:SiO2≥90—99%Fe2O3≤0.06—0.02%
精制石英砂:又称酸洗石英砂,SiO2≥99—99.5%Fe2O3≤0.02—0.015%,
高纯石英砂:SiO2≥99.5—99.9%Fe2O3≤0.005%
熔融石英砂:化学成份:
SiO299.9-99.95%Fe2O35PPM-25PPMmaxLi2O1-2PPMmaxAl2O320-30PPMmax
K2O20-25PPMmaxNa2O10-20PPMmax(PPM为百万分之一单位)
PS:看不懂
长石粉40-8080-120120目以上SiO2:67%Al2O3:16%P+S>0.05
K2O+Na2O>13%(可达18%)
石灰石块状/粉状:烧失量40.79%,硅4.62%,铝1.21%,铁0.52%,钙50.16%,镁1.10%
白云石粉/块:硅0.19%,铝0.15%,铁0.17%,钙32.1%,镁21.19%
芒硝含结晶水55.9%,硫酸钠44.1%.纯矿物含Na2O19.3%,SO324.8%.