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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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Zah J, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 93(1-3), 141-150 (2006)
A sol-gel preparation of silica coated zirconia microspheres as chromatographic support materials.
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J. Mater. Sci., 32(11), 2949-2955 (1997)
Characterization of AZ31 Mg Alloy coated by plasma electrolytic oxidation.
Durdu S, et al.
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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)
A novel photosensitized Fenton reaction catalyzed by sandwiched iron in synthetic nontronite.
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