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307815

Sigma-Aldrich

Sodium metasilicate

Synonyme(s) :

Disodium metasilicate, Disodium silicate, Sodium silicate, Sodium silicon oxide

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About This Item

Formule linéaire :
Na2SiO3
Numéro CAS:
6834-92-0
Poids moléculaire :
122.06
Numéro CE :
229-912-9
Numéro MDL:
MFCD00003492
Code UNSPSC :
12352302
ID de substance PubChem :
24858628
Nomenclature NACRES :
NA.22

Composition

SiO2, 50-53%

Niveau de qualité

200

Chaîne SMILES 

[Na+].[Na+].[O-][Si]([O-])=O

InChI

1S/2Na.O3Si/c;;1-4(2)3/q2*+1;-2

Clé InChI

NTHWMYGWWRZVTN-UHFFFAOYSA-N

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Description générale

SMS is a silicon source for silica materials and can be used as a chemical intermediate for silica gel catalysts.

Application

Reactant for:
  • Hydrothermal preparation of thorium uranium silicate (Th1-xUxSiO4) uranothorite solid solutions
  • Fabrication of dense NaA zeolite coatings
  • Reactant for preparation of tungsten modified silica as catalyst for liquid phase oxidation of styrene
Sodium metasilicate (SMS) has been used in the preparation of polypyrrole/sodium metasilicate (PPy/Na2SiO3) and polythiophene/sodium metasilicate (PT/Na2SiO3) composites, novel high dielectric constant materials for use in power electronic systems.

SMS can also be used:
  • To prepare NaZnSiO3OH, a novel chiral framework material which has potential application in ion exchange, adsorption and catalysis.
  • As a low-cost alternative to tetraethyl orthosilicate (TEOS) to synthesize highly ordered mesoporous silicas.
  • To prepare geopolymer concrete.

Pictogrammes

CorrosionExclamation mark
GHS05,GHS07

Mention d'avertissement

Danger

Mentions de danger

H290,H314,H335

Classification des risques

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificats d'analyse (COA)

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Eun-Jin Kim et al.
Biological trace element research, 152(1), 105-112 (2013-01-12)
Previous studies have reported that dietary silicon (Si) intake is positively associated with bone health including bone mineral density. Although the amount of Si intake is high among trace elements in humans, how dietary Si affects bone formation at the
George H Weber et al.
Journal of food protection, 67(7), 1501-1506 (2004-07-24)
Three intervention strategies-trisodium phosphate, lactic acid, and sodium metasilicate--were examined for their in vitro antimicrobial activities in water at room temperature against a three-strain cocktail of Escherichia coli O157:H7 and a three-strain cocktail of "generic" E. coli. Both initial inhibition
Eve S Steigerwalt et al.
Journal of nanoscience and nanotechnology, 2(1), 25-28 (2003-08-12)
Graphitic carbon nanofibers (GCNFs) are prepared from CO/H2 with a nickel-rich Fe-Ni (2:8) growth catalyst supported on three different water-soluble supports (Na4SiO4, Na2SiO3, and Na2CO3). GCNF products are formed with yield and crystallinity comparable to those of GCNF product produced
J Najda et al.
Biological trace element research, 42(1), 63-70 (1994-07-01)
The effect of an excessive inorganic silicon oral intake on the activity of basic antioxidant enzymes was studied in rats. Activities of superoxide dismutase, catalase, and glutathione peroxidase were measured in liver and kidney tissues of animals receiving per os
Synthesis of highly ordered mesoporous silica materials using sodium silicate and amphiphilic block copolymers.
Kim J M and Stucky G D
Chemical Communications (Cambridge, England), 13, 1159-1160 (2000)
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