Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

Sodium orthosilicate

From Wikipedia, the free encyclopedia
Chemical compound
Sodium orthosilicate
Chemical structure of sodium orthosilicate
Names
IUPAC name
Tetrasodium silicate
Other names
Sodium orthosilicate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.033.387Edit this at Wikidata
EC Number
  • 236-741-3
UNII
UN number1759
  • InChI=1S/4Na.O4Si/c;;;;1-5(2,3)4/q4*+1;-4 checkY
    Key: POWFTOSLLWLEBN-UHFFFAOYSA-N checkY
  • InChI=1S/4Na.O4Si/c;;;;1-5(2,3)4/q4*+1;-4
    Key: POWFTOSLLWLEBN-UHFFFAOYSA-N
  • [O-][Si]([O-])([O-])[O-].[Na+].[Na+].[Na+].[Na+]
Properties
Na4O4Si
Molar mass184.040 g·mol−1
AppearanceWhite powder
Melting point1,018 °C (1,864 °F; 1,291 K)
Hazards
GHS labelling:[1]
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H302,H314,H335
P260,P301+P330+P331,P303+P361+P353,P305+P351+P338,P405,P501
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
☒N (what is checkY☒N ?)
Chemical compound

Sodium orthosilicate is thechemical compound with the molecular formulaNa
4
SiO
4
. It is one of thesodium silicates, specifically anorthosilicate, formally asalt of the unstableorthosilicic acidH
4
SiO
4
.[2][3][4]

Uses

[edit]

Sodium orthosilicate has been considered as aninterfacial tension reducing additive in thewaterflooding ofoil fields for enhancedoil extraction. In laboratory settings, it was found to be more effective thansodium hydroxide for some types of oil.[5]

Sodium orthosilicate has been found to stabilizeferrate films as ananticorrosion treatment ofiron andsteel surfaces.[6]

Natural occurrence

[edit]

Sodium orthosilicate has not been found to occur in nature. However, the mineralchesnokovite, chemically the related salt disodium dihydrogen orthosilicateNa2SiO2(OH)2·8H2O, was identified in theKola Peninsula in 2007.[7]

See also

[edit]

References

[edit]
  1. ^"Sodium Orthosilicate".American Elements. RetrievedSeptember 18, 2018.
  2. ^Baur, Werner H.; Halwax, Erich; Völlenkle, Horst (1986). "Comparison of the crystal structures of sodium orthosilicate,Na
    4
    SiO
    4
    , and sodium orthogermanate,Na
    4
    GeO
    4
    ".Monatshefte für Chemie Chemical Monthly.117 (6–7):793–797.doi:10.1007/BF00810070.S2CID 92420380.
  3. ^M,. G. Barker, P. G.Gadd (1981): "The preparation and crystal structure of sodium orthosilicate,Na
    4
    SiO
    4
    ."Journal of Chemical Research, London] Chemical Society, volume 9, pages S:274 (synopse), M:3446-3466 (main).
  4. ^Schairer, J. F.; Bowen, N. L. (1956)."The systemNa
    2
    O
    Al
    2
    O
    3
    SiO
    2
    "
    .American Journal of Science.254 (3):129–195.Bibcode:1956AmJS..254..129S.doi:10.2475/ajs.254.3.129.
  5. ^Campbell, Thomas C. (1977). "A Comparison of Sodium Orthosilicate and Sodium Hydroxide for Alkaline Waterflooding".All Days.doi:10.2118/6514-MS.{{cite book}}:|work= ignored (help)
  6. ^John R. Harrison (1954): "Process for treating metals with ferrate solution". US PatentUS2850415A, assigned to E. I. du Pont de Nemours
  7. ^Pekov, I. V.; Chukanov, N. V.; Zadov, A. E.; Zubkova, N. V.; Pushcharovsky, D. Yu. (2007). "Chesnokovite, Na2[SiO2(OH)2] · 8H2O, the first natural sodium orthosilicate from the Lovozero alkaline pluton, Kola Peninsula: Description and crystal structure of a new mineral species".Geology of Ore Deposits.49 (8):727–738.Bibcode:2007GeoOD..49..727P.doi:10.1134/S1075701507080077.S2CID 94817330.
Inorganic
Halides
Chalcogenides
Pnictogenides
Oxyhalides
Oxychalcogenides
Oxypnictogenides
Metalates
Others
Organic
Retrieved from "https://en.wikipedia.org/w/index.php?title=Sodium_orthosilicate&oldid=1322355656"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2025 Movatter.jp