Pyrosilicic acid
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Names | |
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IUPAC name
Trihydroxysilyl trihydrogen orthosilicate
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Other names
disilicic acid
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Identifiers | |
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3D model (JSmol)
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ChEBI | |
ChemSpider | |
26937 | |
PubChem CID
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Properties | |
H6O7Si2 | |
Molar mass | 174.211 g·mol−1 |
Conjugate base | Pyrosilicate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Infobox references | |
Pyrosilicic acid is the chemical compound with formula H6Si2O7 or (HO)3SiOSi(OH)3. It was synthesized, using nonaqueous solutions, in 2017.[1] It may be present in sea water and other natural waters at very low concentration.[2][3]
- H6Si2O7(aq) → 2 SiO2(s) + 3 H2O
Compounds formally derived from pyrosilicic acid, such as sodium pyrosilicate, are found in the sorosilicate minerals.
References[]
- ^ Igarashi, Masayasu; Matsumoto, Tomohiro; Yagahashi, Fujio; Yamashita, Hiroshi; Ohhara, Takashi; Hanashima, Takayasu; Nakao, Akiko; Moyosh, Taketo; Sato, Kazuhiko; Shimada, Shigeru (2017). "Non-aqueous selective synthesis of orthosilicic acid and its oligomers". Nature Communications. 8 (1): 140. Bibcode:2017NatCo...8..140I. doi:10.1038/s41467-017-00168-5. PMC 5529440. PMID 28747652.
- ^ Katsumi Goto (1956): "Effect of pH on Polymerization of Silicic Acid". Journal of Physical Chemistry, volume 60, issue 7, pages 1007–1008. doi:10.1021/j150541a046
- ^ 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
Categories:
- Oxoacids
- Silicon compounds