Silica is silicon dioxide SiO2. It is the analog of carbon dioxide CO2, that is the combustion product of the element. The element has reached its highest stable oxidation state so cannot be oxidized any more. read more
Silica is the common name of Silicon Dioxide. It is obtained from quartz and its main uses are in Portland cement, to produce glass and silicon (for electronics), for sand casting and to absorb water/humidity from air in the form of silica gel. read more