What is chemical iron powder

Chemical iron powder: mainly used in titanium dioxide, chemical and other industries, content of 85% -95%, 30-200 mesh adjustable.
Sewage treatment with iron powder: mainly used for electroplating, leather, paper, dyeing and finishing, chemical, ceramics and other industries wastewater treatment, content 75% -90%, 30-200 mesh adjustable.

The pure metallic iron is silver-white, and the iron powder is black. This is an optical problem. Since the specific surface area of the iron powder is small and there is no fixed geometric shape, the crystal structure of the iron is geometrically shaped, so the iron is absorbed by the iron. Department visible light, the other part of the visible light mirror reflected out, showing white; iron powder did not absorb the light was diffuse reflection, can enter the human eye, less visible light, so it is black.