Titanic acid
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IUPAC name Orthotitanic acid | |
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ECHA InfoCard | 100.039.752 |
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MeSH | titanium+hydroxide |
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Properties | |
Chemical formula | Ti(OH)4 |
Molar mass | 115.90 g/mol |
Appearance | White crystals |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
Chemical compound
Titanic acid is a general name for a family of chemical compounds of the elements titanium, hydrogen, and oxygen, with the general formula [TiOx(OH)4−2x]n. Various simple titanic acids have been claimed, mainly in the older literature.[1] No crystallographic and little spectroscopic support exists for these materials. Some older literature refers to TiO2 as titanic acid,[2] and the dioxide forms an unstable hydrate when TiCl4 hydrolyzes.[3]
- Metatitanic acid (H2TiO3),[4]
- Orthotitanic acid (H4TiO4)[5] or Ti(OH)4. It is described as a white salt-like powder under "TiO2·2.16H2O".[6]
- Peroxotitanic acid (Ti(OH)3O2H) has also been described as resulting from the treatment of titanium dioxide in sulfuric acid with hydrogen peroxide. The resulting yellow solid decomposes with loss of O2.[7]
- Pertitanic acid (H2TiO4)[citation needed]
- Pertitanic acid ([TiO(H2O2)]2+)[8]
References
- ^ Frederick Pearson Treadwell (1916). Qualitative analysis. J.Wiley & sons, Incorporated. p. 538. Retrieved 26 March 2021.
- ^ C. Remigius Fresenius (1887). Qualitative Chemical Analysis. J. & A. Churchill. pp. 115–116.
- ^ Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 421.
- ^ F.P. Dunnington (1891). "On metatitanic acid and the estimation of titanium by hydrogen peroxide". Journal of the American Chemical Society. 13 (7): 210–211. doi:10.1021/ja02124a032.
- ^ Leonard Dobbin, Hugh Marshall (1904). Salts and their reactions: A class-book of practical chemistry. University of Edinburgh.
- ^ Ehrlich, P. (1963). "Titanium(IV) Oxide Hydrate TiO2·nH2O". In Brauer, G. (ed.). Handbook of Preparative Inorganic Chemistry. Vol. 1 (2nd ed.). New York: Academic Press. p. 1218.
- ^ Ehrlich, P. (1963). "Peroxotitanic Acid H4TiO5". In Brauer, G. (ed.). Handbook of Preparative Inorganic Chemistry. Vol. 1 (2nd ed.). New York: Academic Press. p. 1219.
- ^ Fukamauchi, Hisao (1967). "Analysis using fluotitanic acid-hydrogen peroxide reagent: A review". Fresenius' Journal of Analytical Chemistry. 229 (6): 413–433. doi:10.1007/BF00505508. S2CID 92389986.
Further reading
- C.K. Lee; et al. (2004). "Preparation and Characterization of Peroxo Titanic Acid Solution Using TiCl3". Journal of Sol-Gel Science and Technology. 31 (1–3): 67–72. doi:10.1023/B:JSST.0000047962.82603.d9. S2CID 98144172.
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Hydrogen compounds
- H3AsO3
- H3AsO4
- HArF
- HAt
- HSO3F
- H[BF4]
- HBr
- HBrO
- HBrO2
- HBrO3
- HBrO4
- HCl
- HClO
- HClO2
- HClO3
- HClO4
- HCN
- HCNO
- H2CrO4/H2Cr2O7
- H2CO3
- H2CS3
- HF
- HFO
- HI
- HIO
- HIO2
- HIO3
- HIO4
- HMnO4
- H2MnO4
- H2MoO4
- HNC
- NaHCO3
- HNCO
- HNO
- HNO2
- HNO3
- H2N2O2
- HNO5S
- H3NSO3
- H2O
- H2O2
- H2O3
- H2O4
- H2O5
- H3PO2
- H3PO3
- H3PO4
- H4P2O7
- H5P3O10
- H2[PtCl6]
- H2S
- H2S2
- H2Se
- H2SeO3
- H2SeO4
- H4SiO4
- H2[SiF6]
- HSCN
- HNCS
- H2SO3
- H2SO4
- H2SO5
- H2S2O3
- H3O
- H2S2O6
- H2S2O7
- H2S2O8
- CF3SO3H
- H2Te
- H2TeO3
- H6TeO6
- H4TiO4
- H2Po
- H[Co(CO)4]