Tin (IV) sulfide

Structural formula
General
Surname	Tin (IV) sulfide
other names	Tin disulfide
Molecular formula	SnS 2
Brief description	golden yellow odorless solid
External identifiers / databases
CAS number 1315-01-1 EC number 215-252-9 ECHA InfoCard 100,013,867 PubChem 15238661 ChemSpider 21865812 Wikidata Q205021
properties
Molar mass	182.84 g mol −1
Physical state	firmly
density	4.5 g cm −3
Melting point	600 ° C (decomposition)
solubility	practically insoluble in water (0.67 µg l −1 at 20 ° C)
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Tin (IV) sulfide is a chemical compound made of tin and sulfur with the formula SnS ₂ .

Occurrence

Of course, tin (IV) sulfide occurs as a rare mineral, berndtite .

Extraction and presentation

Tin (IV) sulfide can be obtained by reacting tin (IV) chloride with hydrogen sulfide .

${\displaystyle \mathrm {SnCl_{4}+2\ H_{2}S\longrightarrow \ SnS_{2}+4\ HCl} }$

${\displaystyle \mathrm {SnCl_{4}+2\ (NH_{4})_{2}S\longrightarrow \ SnS_{2}+4\ NH_{4}Cl} }$

It is obtained industrially by heating tin and sulfur in the presence of ammonium chloride.

${\displaystyle \mathrm {Sn+2\ S\longrightarrow \ SnS_{2}} }$

properties

Tin (IV) sulfide is a golden yellow solid that crystallizes in the trigonal cadmium iodide structure ( polytype 2H) ( space group P 3 m 1 (space group no.164 ) , a = 3.638 Å , c = 5.88 Å). It is insoluble in water. Tin (IV) sulfide is a compound semiconductor with a band gap of 2.2 eV.

use

Tin (IV) sulfide is used as a color pigment and for bronzing (imitation gold, musiv gold , tin bronze).

See also

• Tin (II) sulfide SnS

Individual evidence

1. ↑ ^{a b c d} entry to tin disulfide in the GESTIS Bank of IFA , accessed on February 28, 2017(JavaScript required) .
2. ↑ ^{a b} tin (IV) sulfide at webelements.com
3. ↑ Mineralienatlas: Berndtit
4. ↑ Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 763.
5. ^ RM Hazen, LW Finger: The crystal structures and compressibilities of layer minerals at high pressure. I. SnS ₂ . In: American Mineralogist , 63, 1978, pp. 289-252.
6. ↑ LABurton et al .: Electronic and optical properties of single crystal SnS2: an earth-abundant disulfide photocatalyst . Journal of Materials Chemistry A, 2016, doi : 10.1039 / C5TA08214E .
7. ↑ lenntech.com: Tin and Water