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Sodium metasilicate information


Sodium metasilicate
Structural formula of polymeric sodium silicate
Ball and stick model of polymeric sodium silicate
Sample of sodium silicate in a vial
Names
IUPAC name
Sodium metasilicate
Identifiers
CAS Number
  • 6834-92-0 checkY
  • pentahydrate: 10213-79-3
  • nonahydrate: 13517-24-3 checkY
3D model (JSmol)
  • Interactive image
Abbreviations E550
ChEBI
  • CHEBI:60720 checkY
ChemSpider
  • 21758 checkY
ECHA InfoCard 100.027.193 Edit this at Wikidata
EC Number
  • 600-279-4229-912-9
MeSH Sodium+metasilicate
PubChem CID
  • 23266
  • pentahydrate: 61495
  • nonahydrate: 61639
RTECS number
  • VV9275000
UNII
  • 052612U92L checkY
  • nonahydrate: D8D44215LZ checkY
UN number 1759 3253
CompTox Dashboard (EPA)
  • DTXSID7029669 Edit this at Wikidata
InChI
  • InChI=1S/2Na.O3Si/c;;1-4(2)3/q2*+1;-2 checkY
    Key: NTHWMYGWWRZVTN-UHFFFAOYSA-N checkY
  • InChI=1/2Na.O3Si/c;;1-4(2)3/q2*+1;-2
    Key: NTHWMYGWWRZVTN-UHFFFAOYAB
SMILES
  • [Na+].[Na+].[O-][Si]([O-])=O
Properties
Chemical formula
Na2SiO3
Molar mass 122.062 g·mol−1
Appearance White crystals
Density 2.61 g/cm3
Melting point 1,088 °C (1,990 °F; 1,361 K)
Solubility in water
22.2 g/100 ml (25 °C)
160.6 g/100 ml (80 °C)
Solubility insoluble in alcohol
Refractive index (nD)
1.52
Thermochemistry
Heat capacity (C)
111.8 J/(K·mol)
Std molar
entropy (S298)
113.71 J/(K·mol)
Std enthalpy of
formation fH298)
−1561.43 kJ/mol
Gibbs free energy fG)
−1427 kJ/mol
Hazards
GHS labelling:
Pictograms
GHS05: CorrosiveGHS07: Exclamation mark
Signal word
Danger
Hazard statements
H302, H314, H315, H319, H335
Precautionary statements
P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Lethal dose or concentration (LD, LC):
LD50 (median dose)
1153[clarification needed] (rat, oral)
Safety data sheet (SDS) Avantor Performance Materials
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Sodium metasilicate is the chemical substance with formula Na
2
SiO
3
, which is the main component of commercial sodium silicate solutions. It is an ionic compound consisting of sodium cations Na+
and the polymeric metasilicate anions [–SiO2−
3
–]n. It is a colorless crystalline hygroscopic and deliquescent solid, soluble in water (giving an alkaline solution) but not in alcohols.[1]

  1. ^ Chemical Book: "Sodium metasilicate". Accessed on 2018-05-13.

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Sodium metasilicate

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Sodium metasilicate is the chemical substance with formula Na 2SiO 3, which is the main component of commercial sodium silicate solutions. It is an ionic...

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Sodium silicate

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Sodium silicate is a generic name for chemical compounds with the formula Na 2xSi yO 2y+x or (Na 2O) x·(SiO 2) y, such as sodium metasilicate Na 2SiO...

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Metasilicate

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compounds containing metasilicate anion are: Inosilicates Metasilicic acid (hydrogen metasilicate) Sodium metasilicate Calcium metasilicate Greenwood, Norman...

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Silicate

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= 0), metasilicate SiO2−3 (x = 1), and pyrosilicate Si2O6−7 (x = 0.5, n = 2). The name is also used for any salt of such anions, such as sodium metasilicate;...

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Potassium silicate

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"Final report on the safety assessment of potassium silicate, sodium metasilicate, and sodium silicate". Int. J. Toxicol. 24 (Suppl 1): 103–17. doi:10...

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Petrified wood

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for its possible use as a ceramic material. Early attempts used sodium metasilicate as a source of silica, but tetraethyl orthosilicate has proven more...

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Sodium orthosilicate

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· 8H 2O, was recently identified in the Kola Peninsula. Sodium metasilicate, Na 2SiO 3 "Sodium Orthosilicate". American Elements. Retrieved September 18...

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Sodium germanate

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which is a water-soluble salt. it is structurally analogous to sodium metasilicate, Na2SiO3, consisting of polymeric GeO32− anions made up of vertex...

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Sodium pyrosilicate

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remaining sodium cations. Twinning at a microscopic scale simulates a much larger monoclinic C centered lattice (V′ = 6220 Å3, Z = 32). Sodium metasilicate, Na...

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E number

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polyphosphate emulsifier E550 Sodium Silicates (i) Sodium silicate (ii) Sodium metasilicate anti-caking agent E551 Silicon dioxide (Silica) anti-caking agent...

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Ion

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causes sodium and chlorine to undergo a chemical reaction, wherein the "extra" electron is transferred from sodium to chlorine, forming sodium cations...

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Rinso

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used sodium carbonate. The hard water calcium precipitate formed with metasilicate tends to be finer and hence less likely to be trapped in cloth than the...

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Photosensitive glass

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and lithium metasilicate (Li2SiO3) forms on the silver nanoclusters. This material forms in the crystalline phase. The lithium metasilicate in the exposed...

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Calcium silicate

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insulation solids, such as perlite mixture and vermiculite bonded with sodium silicate. Although it is popularly considered an asbestos substitute, early...

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Oxyacid

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of sodium hydroxide, water, is 14.0, while that of sodium amide, ammonia, is closer to 40, making sodium hydroxide a much weaker base than sodium amide...

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Alkali salt

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include: alkali metasilicates alkali metal hydroxides Sodium carbonate Sodium Bicarbonate Examples of other strongly alkaline salts, include: Sodium percarbonate...

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Pyroxene

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have the general formula XY(Si,Al)2O6, where X represents calcium (Ca), sodium (Na), iron (Fe(II)) or magnesium (Mg) and more rarely zinc, manganese or...

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List of CAS numbers by chemical compound

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7787–41–9 BaSiF6 barium hexafluorosilicate 17125–80–3 BaSiO3 barium metasilicate 13255–26–0 BaSi2 barium silicide 1304–40–1 BaSi2O5 barium disilicate...

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Blacklight

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North American and Philips Wood's glass tubes use lead-activated calcium metasilicate that emits a wider band with a shorter wavelength peak at about 350 nm...

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Dishwasher detergent

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corrosive (fatal) if swallowed. Salts used may include metasilicates, alkali metal hydroxides, sodium carbonate etc. Enzymes: Break up protein-based food...

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Silicon compounds

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rare: metasilicates involving cyclic [(SiOn 3)]2n− units of corner-abutting tetrahedra forming a polygonal ring are also known. Chain metasilicates, {SiO2−...

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Glossary of chemical formulae

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Na[B(NO3)4] sodium tetranitratoborate(III) NaBr sodium bromide 7647-15-6 NaBrO sodium hypobromite NaBrO2 sodium bromite NaBrO3 sodium bromate NaBrO4 sodium perbromate...

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Glossary of geology

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in form and structure. They are metasilicates of calcium, magnesium, and iron with manganese, and less often with sodium, potassium, zirconium, and fluorine...

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Barium

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reaction with silicon at 1,200 °C (2,190 °F) yields barium and barium metasilicate.: 3  Electrolysis is not used because barium readily dissolves in molten...

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Foturan

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During the subsequent crystallization tempering (~560-600 °C), lithium metasilicates (Li2SiO3 glass-ceramic) forms on the silver cluster nucleation in the...

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