Thallium(I) fluoride
| Thallium(I) fluoride | ||
|---|---|---|
| Thallium(I) fluoride[citation needed] | ||
| Other names Thallium monofluoride[citation needed] | ||
| Identifiers | ||
| CAS number | 7789-27-7  | |
| PubChem | 62675 | |
| ChemSpider | 56426  | |
| EC number | 232-154-1 | |
| RTECS number | XG4900000 | |
| Jmol-3D images | {{#if:F[Tl]|Image 1 | |
| ||
| ||
| Properties | ||
| Molecular formula | TlF2• | |
| Molar mass | 223.3817 g/mol | |
| Appearance | White crystals | |
| Density | 8.36 g cm-3 | |
| Melting point | 327 °C; 621 °F; 600 K | |
| Boiling point | 655 °C; 1,211 °F; 928 K (decomposes) | |
| Solubility in water | 78.6 g dm-3 (at 15 °C)[1] | |
| Solubility | slightly soluble in ethanol | |
| Structure | ||
| Crystal structure | Orthorhombic, oP8 | |
| Space group | Fmmm, No. 28 | |
| Hazards | ||
| EU classification |  T+  N | |
| R-phrases | R26/28, R33, R51/53 | |
| S-phrases | S13, S28, S45, S61[2] | |
| Related compounds | ||
| Other anions | Thallium(I) chloride | |
| Other cations | Gallium(III) fluoride Indium(III) fluoride | |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Thallium(I) fluoride (or thallous fluoride or thallium monofluoride) is the chemical compound composed of thallium and fluorine with the formula TlF. It consists of hard white orthorhombic crystals which are slightly deliquescent in humid air but revert to the anhydrous form in dry air.[1] It has a distorted sodium chloride (rock salt) crystal structure,[3][4] due to the 6s2 inert pair on Tl+.[5]
Thallium(I) fluoride is unusual among the thallium(I) halides in that it is very soluble in water, while the others are not.[6]
Reactions
Thallium(I) fluoride can be prepared by the reaction of thallium(I) carbonate with hydrofluoric acid.[3]
References
- ↑ 1.0 1.1 Perry, Dale L.; Phillips, Sidney L. (1995), Handbook of Inorganic Compounds, CRC Press, p. 407, ISBN 0-8493-8671-3, retrieved 2008-06-17
- ↑ "399833 Thallium(I) fluoride 99%". Sigma-Aldrich. Retrieved 2008-06-17.
- ↑ 3.0 3.1 Wiberg, Nils; Wiberg, Egon; Holleman, A. F. (2001), Inorganic Chemistry, Academic Press, p. 1037, ISBN 0-12-352651-5, retrieved 2008-06-17
- ↑ Meyer, Gerd; Naumann, Dieter; Wesemann, Lars (2006), Inorganic Chemistry in Focus III, Wiley-VCH, p. 21, ISBN 3-527-31510-1, retrieved 2008-06-17
- ↑ Berastegui, P.; Hull, S. (2000). "The Crystal Structures of Thallium(I) Fluoride". Journal of Solid State Chemistry 150 (2): 266. doi:10.1006/jssc.1999.8587.
- ↑ Arora, M. G. (2003), P-block Elements, Anmol Publications, p. 35, ISBN 81-7488-563-3, retrieved 2008-06-17
| |||||