Potassium hexafluorotitanate is an inorganic compound of potassium, fluorine, and titanium with the chemical formula K2TiF6.[2][3]
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| Other names
Potassium hexafluorotitanate(IV), dipotassium hexafluorotitanate, titanium potassium hexafluoride
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.037.230 |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| F6K2Ti | |
| Molar mass | 240.054 g·mol−1 |
| Appearance | White powder |
| Melting point | 780 °C (1,440 °F; 1,050 K) |
| Boiling point | 235–237 °C (455–459 °F; 508–510 K) |
| soluble in hot water | |
| Hazards | |
| GHS labelling:[1] | |
  
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| Danger | |
| H302, H317, H318 | |
| P261, P280, P301, P302, P312, P338, P351, P352 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
editHydrofluoric acid reacts with metatitanic acid to generate fluorotitanic acid; then it is neutralized with potassium hydroxide to produce potassium hexafluorotitanate.
Physical properties
editThe compound forms white powder.[4] Potassium hexafluorotitanate is soluble in hot water, slightly soluble in cold water, and inorganic acid. Insoluble in ammonia.[5]
Chemical properties
editReacts with sodium to form titanium, potassium monofluoride and sodium monofluoride:[6][7]
- K2TiF6 + 4Na → Ti + 2KF + 4NaF
Uses
editThe compound is used as an analytical reagent, also used in the manufacture of titanic acid and metallic titanium. Can also be used as a catalyst for polypropylene synthesis. It is a component of the metal phosphating surface adjustment.[8]
References
edit- ^ "Dipotassium hexafluorotitanate". pubchem.ncbi.nlm.nih.gov. Retrieved 15 February 2024.
- ^ "Potassium hexafluorotitanate(IV)". Sigma Aldrich. Retrieved 15 February 2024.
- ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3235. ISBN 978-0-412-30120-9. Retrieved 15 February 2024.
- ^ "Potassium Hexafluorotitanate(IV)". American Elements. American Elements. Retrieved 15 February 2024.
- ^ "Potassium hexafluorotitanate, 97%, Thermo Scientific Chemicals". Fisher Scientific. Retrieved 15 February 2024.
- ^ "The reaction of interaction of hexafluorotitanate and sodium with the formation of the titanium, potassium fluoride and sodium fluoride". chemiday.com. Retrieved 15 February 2024.
- ^ Ermakov, A. A.; Kliment'Eva, G. A.; Andrianov, A. M.; Brusilovskii, Yu. E.; Kovalevskaya, I. P. (28 January 1997). "ChemInform Abstract: Reaction of Potassium Hexafluorotitanate with Sodium, Potassium and Ammonium Hydroxides and Carbonates". ChemInform. 28 (5). doi:10.1002/chin.199705020.
- ^ "POTASSIUM HEXAFLUOROTITANATE(IV)". chembk.com. Retrieved 15 February 2024.