How to distinguish 97 metal silicon powder and 97 silicon powder?

Speaking of the difference between 97 silicon powder and 97 metal silicon powder, it is difficult for ordinary people to distinguish. The two are widely used in the industrial field and are easily confused.
First of all, 97 silicon powder, also known as micro 97 silicon powder, is the dust recovered during the processing of 97 metal silicon or ferroalloy. Because it contains rich silica and its high activity, it is widely used in concrete, refractory materials, rubber, paint and other fields.
Then, the main component of 97 metal silicon powder is crystalline silicon. It is lumpy or granular at first, and it is crushed and ground into powder in different degrees. It is mainly used in the field of refractory material production.
97 metal silicon powder is made by physical grinding, and its chemical composition is quite different from that of 97 silicon powder recycled in production. The main component of 97 silicon powder is silicon dioxide, and the main component of 97 metal silicon is silicon element. 97 metallic silica fume is generally inactive, while 97 silica fume is pozzolanic active. The color of 97 metal silicon powder is usually relatively stable, while the color of 97 silicon powder varies greatly from white to black; 97 silicon powder is widely used.