Calcium silicate

Calcium silicate. A calcium-silica compound chemically obtained by a reaction of calcium oxide with silicon dioxide. This alkali silicate occurs naturally in the mineral wollastonite.

Calcium silicate is a white odourless solid that is insoluble in water. The substance is approved in the EU under the number E 552 as a food additive with maximum limits of 10g/kg for certain foods. Calcium silicate is used as a separating agent or carrier substance (for dyes and emulsifiers).

Their use is essentially the same as that of silica. These include: powdered food, cheese products (both sliced and grated), condiments, table salt.