Metasilicic acid

Metasilicic acid
Names
	IUPAC name Metasilicic acid
	Other names Silicic acid
Identifiers
CAS Number	7699-41-4 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL2068408;
ChemSpider	14236 ;
ECHA InfoCard	100.028.834
EC Number	231-716-3;
PubChem CID	14768;
UNII	4OI8D3YOH1 ;
CompTox Dashboard (EPA)	DTXSID30872499 ;
	InChI InChI=1S/H2O3Si/c1-4(2)3/h1-2H Key: IJKVHSBPTUYDLN-UHFFFAOYSA-N ;
	SMILES O[Si](=O)O;
Properties
Chemical formula	H2O3Si
Molar mass	78.098 g·mol−1
Conjugate base	Metasilicate
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319, H335
Precautionary statements	P261, P264, P271, P280, P304+P340, P305+P351+P338, P312, P337+P313, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). (what is ?) Infobox references

Metasilicic acid is a hypothetical chemical compound with formula (HO)
₂SiO.^[1] The free acid slowly polymerises in aqueous solution even at low concentrations and cannot be isolated under normal conditions. Compounds including the conjugate base are known as metasilicates and occur widely in nature as inosilicates.

References

^ M. F. Bechtold (1955): "Polymerization and Properties of Dilute Aqueous Silicic Acid from Cation Exchange" Journal of Physical Chemistry, volume 59, issue 6, pages 532–541. doi:10.1021/j150528a013

[bech-1] M. F. Bechtold (1955): "Polymerization and Properties of Dilute Aqueous Silicic Acid from Cation Exchange" Journal of Physical Chemistry, volume 59, issue 6, pages 532–541. doi:10.1021/j150528a013

[1]

See also

References