Thallium (I) sulfide

Crystal structure
	__ Tl + __ S 2−
Crystal system	trigonal
Space group	R 3 (No. 146)
Lattice parameters	a = 12.150 Å , c = 18.190 Å
General
Surname	Thallium (I) sulfide
Ratio formula	Tl 2 p
Brief description	dark gray to black solid
External identifiers / databases
EC number	215-250-8
ECHA InfoCard	100,013,865
PubChem	16683485
Wikidata	Q2983921
properties
Molar mass	440.83 g mol −1
Physical state	firmly
density	8.39 g cm −3
Melting point	448.4 ° C (under nitrogen)
solubility	very sparingly soluble in water (0.5 g l −1 at 20 ° C)
safety instructions
H and P phrases	H: 300 + 330-373-411
	P: 260-264-273-284-301 + 310-310
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Thallium (I) sulfide is an inorganic chemical compound of thallium from the group of sulfides .

Extraction and presentation

Thallium (I) sulfide can be produced by the reaction of thallium with sulfur

{\ displaystyle {\ ce {2Tl + S -> Tl2S}}}

or by reaction of thallium ethoxide with hydrogen sulphide .

{\ displaystyle {\ ce {2TlOC2H5 + H2S -> Tl2S + 2C2H5OH}}}

properties

Thallium (I) sulfide is a fine powder, deep black, which is practically insoluble in water. When rubbed, it smears like graphite. The compound begins to volatilize above 300 ° C. Thallium (I) sulfide has a trigonal crystal structure in the space group R 3 (space group no. 146) similar to the lead (II) iodide type with the lattice parameters a = 12.150 Å and c = 18.190 Å. Template: room group / 146

Occurrence

Thallium (I) sulfide occurs naturally as the mineral carlinite .

literature

V. Schmidt and W. Rüdorff: About the reaction of thallium (I) sulfide with the disulfides of vanadium, niobium, tantalum and molybdenum . In: Journal for Nature Research . 1972, p. 25-28 ( PDF ).

Individual evidence

↑ ^a ^b ^c ^d data sheet Thallium (I) sulfide from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).
↑ ^a ^b ^c ^d ^e Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 884.
↑ K. Rauschert, J. Voigt, I. Wilke, K-Th. Wilke: Chemical tables and calculation tables for analytical practice . 11th edition. Europa-Lehrmittel, 2000, ISBN 978-3-8085-5450-0 , p. 173 .
↑ G. Giester et al .: Tl ₂ S: Re-Determination of Crystal Structure and Chemical Stereo Discussion . In: Journal of Solid State Chemistry . tape 168 , no. 1 . Elsevier , October 2002, p. 322-330 , doi : 10.1006 / jssc.2002.9711 .
↑ Webmineral: Carlinite

[Sigma-1] ta sheet Thallium (I) sulfide from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).

[brauer-2] Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 884.

[3] K. Rauschert, J. Voigt, I. Wilke, K-Th. Wilke: Chemical tables and calculation tables for analytical practice . 11th edition. Europa-Lehrmittel, 2000, ISBN 978-3-8085-5450-0 , p. 173 .

[4] G. Giester et al .: Tl ₂ S: Re-Determination of Crystal Structure and Chemical Stereo Discussion . In: Journal of Solid State Chemistry . tape 168 , no. 1 . Elsevier , October 2002, p. 322-330 , doi : 10.1006 / jssc.2002.9711 .

[5] Webmineral: Carlinite