外观：白色微细粉末。

  亲水性等级：                  QS-10      QS-102       QS-20        QS-20(LS)

   BET比表面积_⁽m^{2_{/g)       140±20      140±20         220±20         220±20}}   

   _{^{平均一次粒子直径                   15            15                    12                 12}}

   _{^{堆积密度 (g/L)                      50            50                    50                 40}}  

   ^{_{水分（干燥减量法、%）}1_{）  ＜1.5           ＜1.5              ＜1.5               ＜1.5}}    

   ^{_{pH（4%悬浮液）                  4.2            4.2                  4.2                 4.2}}   

   _^SiO2（%）                  ＞99.9      ＞99.9         ＞99.9         ＞99.9 

  CI(ppm)                     ＜50          ＜50            ＜50            ＜50

  Fe(ppm)                     ＜20          ＜20            ＜20            ＜20

  AI(ppm)                     ＜20          ＜20            ＜20             ＜20  

  44um筛残（%）          ＜0.01       ＜0.01         ＜0.01          ＜0.01

  纸袋包装重量（kg）        10             10               10               10 

 用途：用于防沉、增稠和补强。