Osmium tetrasulfide

Osmium tetrasulfide  Names

Other names

Osmium(VIII) sulphide, tetrakis(sulfanylidene)osmium

Identifiers

3D model (JSmol)

* Interactive image

PubChem CID

* 149252039

InChI

* InChI=1S/Os.4S

Key: CQZYSTFQZYMZKW-UHFFFAOYSA-N

SMILES

* S=[Os](=S)(=S)=S

Properties

Chemical formula

| OsS4
Molar mass | 318.47 g·mol−1
Appearance  | dark brown crystals

Solubility in water

| insoluble

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Osmium tetrasulfide is an inorganic compound, a salt of osmium metal and hydrogen sulfide acid with the chemical formula OsS
4.[1]

## Synthesis

Osmium tetrasulfide can be made by passing hydrogen sulfide through acidified solutions of osmium tetroxide:[2]

OsO
4 \+ 4H
2S → OsS
4 \+ 4H

## Physical properties

Osmium tetrasulfide forms dark brown crystals, does not dissolve in cold water. Soluble in dilute HNO
3.[3] Forms hydrates.[4]

Osmium tetrasulfide decomposes upon melting.[5]

## References

1. ↑ Bloxam, Charles Loudon (1888) (in en). Chemistry, Inorganic and Organic: With Experiments. P. Blakiston. p. 447. https://books.google.com/books?id=EFrPAAAAMAAJ&dq=osmium+tetrasulfide+OsS4&pg=PA447. Retrieved 4 April 2023.
2. ↑ Satya, Prakash (2013) (in en). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 615. ISBN 978-81-219-4254-6. https://books.google.com/books?id=WB_4DwAAQBAJ&dq=osmium+tetrasulfide+OsS4&pg=PA615. Retrieved 4 April 2023.
3. ↑ Gmelin, Leopold (1852) (in en). Hand Book of Chemistry. Cavendish Society. p. 411. https://books.google.com/books?id=1AI5AAAAMAAJ&dq=osmium+tetrasulfide+OsS4&pg=PA411. Retrieved 4 April 2023.
4. ↑ Comey, Arthur Messinger (1896) (in en). A Dictionary of Chemical Solubilities: Inorganic. Macmillan and Company. p. 275. https://books.google.com/books?id=H9bPAAAAMAAJ&dq=osmium+tetrasulfide+OsS4&pg=PA275. Retrieved 4 April 2023.
5. ↑ Sangeeta, D. (25 June 1997) (in en). Inorganic Materials Chemistry Desk Reference. CRC Press. p. 266. ISBN 978-0-8493-8900-9. https://books.google.com/books?id=bdGXyilNsGMC&dq=osmium+tetrasulfide+OsS4&pg=RA4-PP4. Retrieved 4 April 2023.

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Osmium compounds

Os(0)|

* Os3(CO)12

Os(0,I)|

* H2Os3(CO)10

Os(I)|

* OsB

Os(I,II)|

* Os2B3

Os(II)|

* OsB2

| Organoosmium(II) compounds|

* Os(C5H5)2

|

Os(IV)|

* OsO2
* OsCl4

Os(VI)|

* OsF6

Os(VIII)|

* OsO4
* OsS4

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Sulfides

| H2S
H2S2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | He

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Li2S | BeS |  |  |  |  |  |  |  |  |  |  | B2S3 | CS2
COS | (NH4)SH | O | F | Ne
Na2S
Na2Sx | MgS |  |  |  |  |  |  |  |  |  |  | Al2S3 | SiS
SiS2 | PxSy | S | Cl | Ar
K2S | CaS | Sc2S3 | TiS2 | V | CrS
Cr2S3 | MnS
MnS2 | FeS
Fe3S4 | CoS | NiS | Cu2S
CuS | ZnS | GaS
Ga2S3 | GeS
GeS2 | As2S3
As4S3 | SeS2 | Br | Kr
Rb2S | SrS | Y2S3 | ZrS2 | NbS2 | MoS2 | Tc | Ru | Rh2S3 | PdS | Ag2S | CdS | In2S3 | SnS
SnS2 | Sb2S3
Sb2S5 | TeS2 | I | Xe
Cs2S | BaS | *  | HfS2 | TaS2 | WS2
WS3 | ReS2
Re2S7 | Os | Ir2S3
IrS2 | PtS
PtS2 | Au2S
Au2S3 | HgS | Tl2S | PbS
PbS2 | Bi2S3 | Po | At | Rn
Fr | Ra | **  | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |  |  |  |  |  |  |  |
|  | ↓ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| * | La2S3 | CeS
Ce2S3 | Pr2S3 | Nd2S3 | Pm2S3 | SmS
Sm2S3 | Eu2S3 | Gd2S3 | Tb2S3 | Dy2S3 | Ho2S3 | Er2S3 | Tm2S3 | Yb2S3 | Lu2S3 |
| ** | Ac | ThS2 | Pa | US2 | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr |

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