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Titanic acid

From Wikipedia, the free encyclopedia
Orthotitanic acid
Names
IUPAC name
Orthotitanic acid
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.039.752Edit this at Wikidata
EC Number
  • 243-744-3
MeSHtitanium+hydroxide
UNII
  • InChI=1S/4H2O.Ti/h4*1H2;/q;;;;+4/p-4 checkY
    Key: LLZRNZOLAXHGLL-UHFFFAOYSA-J checkY
  • O[Ti](O)(O)O
Properties
Ti(OH)4
Molar mass115.90 g/mol
AppearanceWhite crystals
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Titanic acid is a general name for a family of chemical compounds of the elementstitanium,hydrogen, andoxygen, 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 toTiO2 as titanic acid,[2] and the dioxide forms an unstable hydrate whenTiCl4 hydrolyzes.[3]

  • Metatitanic acid (H2TiO3),[4]
  • Orthotitanic acid (H4TiO4)[5] orTi(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 ofO2.[7]
  • Pertitanic acid (H2TiO4)[citation needed]
  • Pertitanic acid ([TiO(H2O2)]2+)[8]

References

[edit]
  1. ^Frederick Pearson Treadwell (1916).Qualitative analysis. J.Wiley & sons, Incorporated. p. 538. Retrieved26 March 2021.
  2. ^C. Remigius Fresenius (1887).Qualitative Chemical Analysis. J. & A. Churchill. pp. 115–116.
  3. ^Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 421.
  4. ^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.
  5. ^Leonard Dobbin, Hugh Marshall (1904).Salts and their reactions: A class-book of practical chemistry. University of Edinburgh.
  6. ^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.
  7. ^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.
  8. ^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

[edit]
Titanium(II)
Organotitanium(II) compounds
Titanium(III)
Organotitanium(III) compounds
Titanium(IV)
Titanate compounds
Organotitanium(IV) compounds
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