Product Name/Trade Names: Silica quartz powder (flour) sold under various names: GLASS POWDER, FLINT SILICA, Fine Ground Silica. Chemical Name or Synonym: Silicon Dioxide (SiO2) Powder. Silica Powder, Silica Quartz Powder, Quartz Powder, Quartz, Crystalline Silica. White Silica Quartz Powder with no odor. Use of the Substance/ Preparation Main Applications (non-exhaustive list): abrasives, brick, ceramics, foundry castings, glass, grout, hydraulic frac (proppant) sand, mortar, paint and coatings, silicate chemistry, silicone rubber, thermoset plastics.