纳米级玻璃粉,白度≥95,PH值7,平均粒径0.7-70μm,透光率≥97.6,比 重1.8-2.1/cm,吸油量14±2.5g/100g,莫氏硬度7.8,水份≤0.18%,杂质≤0.27%,低温熔融玻璃粉的目数一般为1500目-3000目,平均粒径5~13微米
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