Question

Acid refractory, basic refractory and neutral refractory materials

Answer 1

Answer:

They are impervious to acidic materials, but easily attacked by basic materials. Important members of this group are alumina, silica, and fireclay refractories. ... Neutral refractories are made from weakly acid/basic materials such as carbon, silicon carbide (SiC), chromite (FeCr2O4) and zirconia (ZrO2).