Sodium silicates are produced by melting sodium carbonate (Na2CO3) with specially selected silica sand at high temperatures. The resulting product is an amorphous crystal that can be dissolved by special processes to produce solutions in a wide variety of forms.
Composition
Table
Ingredients
Synonym
Nº CAS
%
EC Nº
Sodium Silicate
Sodium Salt of Silicic Acid
1344-09-8
36.00 – 47.0
215-687-4
Water
Balance
Applications
In the foundry industry:
Silicate is used as a binder in the manufacture of molds for casting ferrous and non-ferrous metal parts. The resulting molds have suitable hardness and porosity, which allow for proper gas release.
In the textile industry:
In bleaching operations, the stabilizing properties of silicate reduce the decomposition rate of the bleaching agent.
