Sodium orthosilicate is the
chemical compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one ele ...
with the molecular formula . It is one of the
sodium silicates, specifically an
orthosilicate, formally a
salt of the unstable
orthosilicic acid .
[M,. G. Barker, P. G.Gadd (1981): "The preparation and crystal structure of sodium orthosilicate, ." ''Journal of Chemical Research'', London] Chemical Society, volume 9, pages S:274 (synopse), M:3446-3466 (main).]
Uses
Sodium orthosilicate has been considered as an
surface tension, interfacial tension reducing additive in the
waterflooding of
oil fields for enhanced
oil extraction. In laboratory settings, it was found to be more effective than
sodium hydroxide for some types of oil.
Sodium orthosilicate has been found to stabilize
ferrate films as an
anticorrosion treatment of
iron
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in ...
and
steel surfaces.
[John R. Harrison (1954): "Process for treating metals with ferrate solution". US Paten]
US2850415A
assigned to E. I. du Pont de Nemours
Natural occurrence
Sodium orthosilicate has not been found in nature. However, the mineral
chesnokovite, chemically the related salt disodium dihydrogen orthosilicate []
2[] ยท 8, was recently identified in the Kola Peninsula.
See also
* Sodium metasilicate,
References
{{reflist
[
ategory:Silicates