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71746

Sigma-Aldrich

Sodium metasilicate pentahydrate

≥95.0% (T)

Synonym(s):

Disodium silicate pentahydrate, Sodium silicate hydrate, Uniflo 26

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About This Item

Linear Formula:
Na2SiO3 · 5H2O
CAS Number:
10213-79-3
Molecular Weight:
212.14
EC Number:
229-912-9
MDL number:
MFCD00149176
UNSPSC Code:
12352302
PubChem Substance ID:
57652358
NACRES:
NA.22

Assay

≥95.0% (T)

form

beads

SMILES string

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

InChI

1S/2Na.O3Si.5H2O/c;;1-4(2)3;;;;;/h;;;5*1H2/q2*+1;-2;;;;;

InChI key

ADPGKKZKGXANON-UHFFFAOYSA-N

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Application

Sodium metasilicate pentahydrate can be used:
  • As a silicate electrolyte in plasma electrolytic oxidation (PEO) coating.
  • For the synthesis of sintered mullite ceramics (3Al2O3·2SiO2) by the co-precipitation method.
  • As a source of silica for the synthesis of silica-zirconia composites for the chromatographic applications.
  • For the synthesis of photo-Fenton catalyst, nontronite, for the degradation of Rhodamine B.
  • As a starting material for the synthesis of zeolite NaA layers on α-Al2O3 supports.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H290,H314,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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A sol-gel preparation of silica coated zirconia microspheres as chromatographic support materials.
Shalliker RA, et al.
J. Mater. Sci., 32(11), 2949-2955 (1997)
Characterization of AZ31 Mg Alloy coated by plasma electrolytic oxidation.
Durdu S, et al.
Vacuum, 88, 130-133 (2013)
Layer development and growth history of polycrystalline zeolite A membranes synthesised from a clear solution.
Zah J, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 93(1-3), 141-150 (2006)
Prinya Chindaprasirt et al.
Waste management (New York, N.Y.), 30(4), 667-672 (2009-10-27)
In this paper, synthesis of geopolymer from fluidized bed combustion (FBC) ash and pulverized coal combustion (PCC) fly ash was studied in order to effectively utilize both ashes. FBC-fly ash and bottom ash were inter-ground to three different finenesses. The
Mechanical, morphological and dielectric properties of sintered mullite ceramics at two different heating rates prepared from alkaline monophasic salts.
Sanad MMS, et al.
Ceramics International, 39(2), 1547-1554 (2013)
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