Fumed silica, that is amorphous silica produced in the flame method from silica, is NOT the same as silica fume.
The average particle size of fumed silica is 7-40 nm.
while the average particle size of silica fume is 0.1-0.15 μm.
Fumed silica and precipitated silica are both synthetic amorphous silica, but they are different in many properties. In this video, HIFULL will explain their difference in 3 main aspects.
click below button to see the video.
