Thallium(I) fluoride

Thallium(I) fluoride
Names
	Preferred IUPAC name Thallium(I) fluoride
	Other names Thallium monofluoride; Thallous fluoride
Identifiers
CAS Number	7789-27-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	56426 ;
ECHA InfoCard	100.029.231
EC Number	232-154-1;
PubChem CID	62675;
RTECS number	XG4900000;
UNII	GV4Y14VZLX ;
CompTox Dashboard (EPA)	DTXSID701027537 ;
	InChI InChI=1S/FH.Tl/h1H;/q;+1/p-1 Key: CULOEOTWMUCRSJ-UHFFFAOYSA-M ;
	SMILES F[Tl];
Properties
Chemical formula	TlF
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/100 mL (at 15 °C)
Solubility	slightly soluble in ethanol
Magnetic susceptibility (χ)	−44.4·10−6 cm3/mol
Structure
Crystal structure	Orthorhombic, oP8
Space group	Fmmm, No. 28
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H330, H373, H411
Precautionary statements	P260, P264, P270, P271, P273, P284, P301+P310, P304+P340, P310, P314, P320, P321, P330, P391, P403+P233, P405, P501
Related compounds
Other anions	Thallium(I) chloride; Thallium(I) bromide; Thallium(I) iodide
Other cations	Gallium(III) fluoride; Indium(III) fluoride; Thallium(III) fluoride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Thallium(I) fluoride is the inorganic compound with the formula TlF. It is a white solid, forming orthorhombic crystals. The solid is slightly deliquescent.^[1] It has a distorted sodium chloride (rock salt) crystal structure,^[3]^[4] due to the 6s² inert pair on Tl⁺.^[5]

This salt is unusual among the thallium(I) halides in that it is very soluble in water.^[6]

Reactions

Thallium(I) fluoride can be prepared by the reaction of thallium(I) carbonate with hydrofluoric acid.^[3]

^ ^a ^b 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.
^ ^a ^b 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. Bibcode:2000JSSCh.150..266B. 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