Caesium sulfide

Caesium sulfide
Names
	IUPAC name Caesium sulfide
Identifiers
CAS Number	12214-16-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	22499401;
PubChem CID	14496896;
	InChI InChI=1S/2Cs.S/q2*+1;-2 Key: QTNDMWXOEPGHBT-UHFFFAOYSA-N;
	SMILES [S-2].[Cs+].[Cs+];
Properties
Chemical formula	Cs2S
Molar mass	297.876 g/mol
Appearance	White crystal
Density	4.19 g·cm−3
Melting point	480 °C
Solubility in water	Hydrolyzes to form caesium bisulfide
Solubility in ethanol and glycerol	Soluble
Structure
Crystal structure	cubic, anti-fluorite
Hazards
Main hazards	toxic
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H314, H400
GHS precautionary statements	P260, P264, P273, P280, P301+330+331, P303+361+353, P304+340, P305+351+338, P310, P321, P363, P391, P405, P501
Related compounds
Other anions	Caesium oxide; Caesium selenide; Caesium telluride; Caesium polonide
Other cations	Lithium sulfide; Sodium sulfide; Potassium sulfide; Rubidium sulfide; Francium sulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Caesium sulfide is an inorganic salt with a chemical formula Cs₂S. It is a strong alkali in aqueous solution. In the air, caesium sulfide emits rotten egg smelling hydrogen sulfide.

Production

Similar to sodium sulfide, anhydrous caesium sulfide can be produced by reacting caesium and sulfur in THF. It needs ammonia or naphthalene to react.^[4]

2 Cs + S → Cs
2S

By dissolving hydrogen sulfide into caesium hydroxide solution, it will produce caesium bisulfide, then it will produce caesium sulfide too.^[5]^[6]。

CsOH + H
2S → CsHS + H
2O

CsHS + CsOH → Cs
2S + H
2O

References

↑ Sommer, Helmut; Hoppe, Rudolf. The crystal structure of cesium sulfide and a remark about cesium selenide, cesium telluride, rubidium selenide, and rubidium telluride Script error: The function "in_lang" does not exist.. Zeitschrift für Anorganische und Allgemeine Chemie, 1977. 429: 118-30. ISSN 0044-2313
↑ Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds. CRC Press, 1995, ISBN 978-0-8493-8671-8, S. 336 ([1], p. 336, at Google Books).
↑ Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 692 ([2], p. 692, at Google Books).
↑ J.-H. So and P. Boudjouk (1992). "Hexamethyldisilathiane". in N. G. Russell. Inorganic Syntheses. 29. pp. 30–32. doi:10.1002/9780470132609.ch11. ISBN 978-0-470-13260-9.
↑ Biltz, Wilhelm; Wilke-Dörfurt, Ernst (1905). "Über Sulfide des Rubidiums und Cäsiums". Zeitschrift für Anorganische Chemie 48: 297–318. doi:10.1002/zaac.19060480122. http://www.archive.org/stream/zeitschriftfura45unkngoog#page/n310/mode/1up.
↑ R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext

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[1] Sommer, Helmut; Hoppe, Rudolf. The crystal structure of cesium sulfide and a remark about cesium selenide, cesium telluride, rubidium selenide, and rubidium telluride Script error: The function "in_lang" does not exist.. Zeitschrift für Anorganische und Allgemeine Chemie, 1977. 429: 118-30. ISSN 0044-2313

[Perry-2] Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds. CRC Press, 1995, ISBN 978-0-8493-8671-8, S. 336 ([1], p. 336, at Google Books).

[Lax-3] Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 692 ([2], p. 692, at Google Books).

[4] J.-H. So and P. Boudjouk (1992). "Hexamethyldisilathiane". in N. G. Russell. Inorganic Syntheses. 29. pp. 30–32. doi:10.1002/9780470132609.ch11. ISBN 978-0-470-13260-9.

[Blitz-5] Biltz, Wilhelm; Wilke-Dörfurt, Ernst (1905). "Über Sulfide des Rubidiums und Cäsiums". Zeitschrift für Anorganische Chemie 48: 297–318. doi:10.1002/zaac.19060480122. http://www.archive.org/stream/zeitschriftfura45unkngoog#page/n310/mode/1up.

[Abegg-6] R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext

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Caesium sulfide

Topic: Chemistry

Production

References