Tungsten Trisulfide

Tungsten trisulfide
Names
	Other names Tungsten(VI) sulphide, tris(sulfanylidene)tungsten
Identifiers
CAS Number	12125-19-8;
3D model (JSmol)	Interactive image;
ChemSpider	9215149;
EC Number	235-734-2;
PubChem CID	11039977;
	InChI InChI=1S/3S.W Key: YMZATHYBBBKECM-UHFFFAOYSA-N;
	SMILES S=[W](=S)=S;
Properties
Chemical formula	WS3
Molar mass	280.038 g/mol
Appearance	Brown solid
Related compounds
Related compounds	Tungsten disulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Tungsten trisulfide is an inorganic compound of tungsten and sulfur with the chemical formula WS₃.^[1]^[2] The compound looks like chocolate-brown powder.^[3]^[4]

Synthesis

1. Bubbling hydrogen sulfide through hot acquefied solution of tungstenates:^[5]

[math]\ce{ Na3WS4 + H2SO4 = WS3 + Na2SO4 + H2S }[/math]

2. Reaction of tungsten disulfide and elemental sulfur on heating:^[6]

[math]\ce{ WS2 + S = WS3 }[/math]

3. Precipitates upon acidification of thiotungstate solutions:

[math]\ce{ (NH4)2WS + HCl = WS3 + 2NH4Cl + H2S }[/math]

Physical properties

Slightly soluble in cold water and forms colloidal solution in hot water.

Soluble in alkali metal carbonates and alkali metal hydroxides.^[3]

Chemical properties

Tungsten trisulfide can be decomposed by heating into tungsten disulfide and elemental sulfur:

[math]\ce{ WS3 = WS2 + S }[/math]

Reacts with sulfide solutions:

[math]\ce{ WS3 + (NH4)2S = (NH4)2WS4 }[/math]

Reduced by hydrogen:

[math]\ce{ WS3 + 3H2 = W + 3H2S }[/math]

References

↑ Scott, Robert A.; Jacobson, Allan J.; Chianelli, Russ R.; Pan, W. H.; Stiefel, Edward I.; Hodgson, Keith O.; Cramer, Stephen P. (1 April 1986). "Reactions of molybdenum trisulfide, tungsten trisulfide, tungsten triselenide, and niobium triselenide with lithium. Metal cluster rearrangement revealed by EXAFS". Inorganic Chemistry 25 (9): 1461–1466. doi:10.1021/ic00229a032. ISSN 0020-1669. https://pubs.acs.org/doi/abs/10.1021/ic00229a032. Retrieved 1 November 2021.
↑ Hille, Russ; Schulzke, Carola; Kirk, Martin L. (29 September 2016) (in en). Molybdenum and Tungsten Enzymes: Bioinorganic Chemistry. Royal Society of Chemistry. p. 155. ISBN 978-1-78262-877-4. https://www.google.ru/books/edition/Molybdenum_and_Tungsten_Enzymes/FRU0DQAAQBAJ?hl=en&gbpv=1&dq=Tungsten+trisulfide&pg=PA155&printsec=frontcover. Retrieved 1 November 2021.
↑ ^3.0 ^3.1 (in en) Kirk-Othmer Concise Encyclopedia of Chemical Technology, 2 Volume Set. John Wiley & Sons. 16 July 2007. p. 1122. ISBN 978-0-470-04748-4. https://www.google.ru/books/edition/Kirk_Othmer_Concise_Encyclopedia_of_Chem/BYQfEAAAQBAJ?hl=en&gbpv=1&dq=Tungsten+trisulfide&pg=RA1-PA1122&printsec=frontcover. Retrieved 1 November 2021.
↑ "Tungsten trisulfide" (in en). National Institute of Standards and Technology. https://webbook.nist.gov/cgi/formula?ID=B8025276.
↑ (in en) NASA Technical Translation. National Aeronautics and Space Administration. 1959. p. 7. https://www.google.ru/books/edition/NASA_Technical_Translation/zUwjAAAAMAAJ?hl=en&gbpv=1&dq=Tungsten+trisulfide&pg=PA7&printsec=frontcover. Retrieved 1 November 2021.
↑ "Tungsten Trisulfide-- Tungsten Trisulfide Professional Manufacturer and Supplier". tungsten-powder.com. http://www.tungsten-powder.com/tungsten-trisulfide.html.

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Tungsten trisulfide. Read more

[1] Scott, Robert A.; Jacobson, Allan J.; Chianelli, Russ R.; Pan, W. H.; Stiefel, Edward I.; Hodgson, Keith O.; Cramer, Stephen P. (1 April 1986). "Reactions of molybdenum trisulfide, tungsten trisulfide, tungsten triselenide, and niobium triselenide with lithium. Metal cluster rearrangement revealed by EXAFS". Inorganic Chemistry 25 (9): 1461–1466. doi:10.1021/ic00229a032. ISSN 0020-1669. https://pubs.acs.org/doi/abs/10.1021/ic00229a032. Retrieved 1 November 2021.

[2] Hille, Russ; Schulzke, Carola; Kirk, Martin L. (29 September 2016) (in en). Molybdenum and Tungsten Enzymes: Bioinorganic Chemistry. Royal Society of Chemistry. p. 155. ISBN 978-1-78262-877-4. https://www.google.ru/books/edition/Molybdenum_and_Tungsten_Enzymes/FRU0DQAAQBAJ?hl=en&gbpv=1&dq=Tungsten+trisulfide&pg=PA155&printsec=frontcover. Retrieved 1 November 2021.

[KO-3] 3.0 ^3.1 (in en) Kirk-Othmer Concise Encyclopedia of Chemical Technology, 2 Volume Set. John Wiley & Sons. 16 July 2007. p. 1122. ISBN 978-0-470-04748-4. https://www.google.ru/books/edition/Kirk_Othmer_Concise_Encyclopedia_of_Chem/BYQfEAAAQBAJ?hl=en&gbpv=1&dq=Tungsten+trisulfide&pg=RA1-PA1122&printsec=frontcover. Retrieved 1 November 2021.

[4] "Tungsten trisulfide" (in en). National Institute of Standards and Technology. https://webbook.nist.gov/cgi/formula?ID=B8025276.

[5] (in en) NASA Technical Translation. National Aeronautics and Space Administration. 1959. p. 7. https://www.google.ru/books/edition/NASA_Technical_Translation/zUwjAAAAMAAJ?hl=en&gbpv=1&dq=Tungsten+trisulfide&pg=PA7&printsec=frontcover. Retrieved 1 November 2021.

[6] "Tungsten Trisulfide-- Tungsten Trisulfide Professional Manufacturer and Supplier". tungsten-powder.com. http://www.tungsten-powder.com/tungsten-trisulfide.html.