1) Ceramic material 2) Silicon dioxide
Found on
https://www.crosswordclues.com/clue/silica-fume
Silica fume, also known as microsilica, (CAS number 69012-64-2, EINECS number 273-761-1) is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. The ma...
Found on
http://en.wikipedia.org/wiki/Silica_fume
No exact match found.
