Polonium sulfide
| Names | |
|---|---|
| Other names Polonium monosulfide[1] | |
| Identifiers | |
CAS Number |
|
3D model (JSmol) |
|
InChI
| |
| |
| Properties | |
Chemical formula | PoS |
| Molar mass | 241.07 g/mol |
| Appearance | Black crystals |
| Melting point | 500 °C (932 °F; 773 K) |
Solubility in water | Insoluble[2] |
| Related compounds | |
Related compounds | Chromium(III) sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Chemical compound
Polonium sulfide is an inorganic compound of polonium and sulfur with the chemical formula PoS.[3] The compound is radioactive and forms black crystals.[4][5]
Synthesis
1. Passing hydrogen sulfide through an acidic solution of a polonium(II) salt:[6][7]
2. Reaction of ammonium sulfide aqueous solution with polonium(II) hydroxide:
Physical properties
Polonium sulfide forms black solid crystals, insoluble in water, ammonium sulfide, ethanol, acetone, or toluene.
Chemical properties
Polonium sulfide has strong reducing properties and can be oxidized by chlorine water, bromine water, sodium hypochlorite, and aqua regia. Polonium sulfide is also unstable to heating. It decomposes into elemental polonium and elemental sulfur when heated to 274.85°C in a vacuum:[8]
Reacts with concentrated acids:
Applications
Used in the isolation and purification of polonium.
References
- ^ "polonium | Definition, Symbol, Properties, Uses, & Facts". Encyclopedia Britannica. Retrieved 2 November 2021.
- ^ Schweitzer, George K.; Pesterfield, Lester L. (14 January 2010). The Aqueous Chemistry of the Elements. Oxford University Press. p. 243. ISBN 978-0-19-539335-4.
- ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3779. ISBN 978-0-412-30120-9. Retrieved 2 November 2021.
- ^ Sergeevа, V. I.; Stepanova, N. Yu.; Savenko, A. V.; Sapozhnikov, Yu. A. (2015). "Use of Iron Sulfide for Removing Polonium from Liquid Radioactive Waste". Radiochemistry. 57 (5): 534–536. doi:10.1134/S1066362215050148. S2CID 59461310. Retrieved 2 November 2021.
- ^ "Polonium - an overview | ScienceDirect Topics". sciencedirect.com. Retrieved 2 November 2021.
- ^ Wiberg, Egon; Holleman, A. F.; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 594. ISBN 978-0-12-352651-9. Retrieved 2 November 2021.
- ^ Considine, Douglas M.; Considine, Glenn D. (11 December 2013). Van Nostrand's Scientific Encyclopedia. Springer Science & Business Media. p. 2503. ISBN 978-1-4757-6918-0. Retrieved 2 November 2021.
- ^ Brown, Susan A.; Brown, Paul L. (25 September 2019). The Aqueous Chemistry of Polonium and the Practical Application of its Thermochemistry. Elsevier. p. 10. ISBN 978-0-12-819309-9. Retrieved 2 November 2021.
- v
- t
- e
Sulfides (S2−)
| H2S | He | ||||||||||||||||||||
| Li2S | BeS | B2S3 +BO3 | CS2 COS | (NH4)SH | O | F | Ne | ||||||||||||||
| Na2S | MgS | Al2S3 | SiS SiS2 -Si | PxSy -P | -S2− 2 | Cl | Ar | ||||||||||||||
| K2S | CaS | ScS Sc2S3 | TiS TiS2 Ti2S3 TiS3 | VS VS2 V2S3 | CrS Cr2S3 | MnS MnS2 | FeS Fe3S4 | CoS | NiS | Cu2S CuS | ZnS | GaS Ga2S3 | GeS GeS2 -Ge | As2S3 As4S3 -As | SeS2 +Se | Br | Kr | ||||
| Rb2S | SrS | Y2S3 | ZrS2 | NbS2 | MoS2 MoS3 | Tc | Ru | Rh2S3 | PdS | Ag2S | CdS | In2S3 | SnS SnS2 -Sn | Sb2S3 Sb2S5 -Sb | TeS2 | I | Xe | ||||
| Cs2S | BaS | * | LuS Lu2S3 | HfS2 | TaS2 | WS2 WS3 | ReS2 Re2S7 | OsS 4 | Ir2S3 IrS2 | PtS PtS2 | Au2S Au2S3 | HgS | Tl2S | PbS PbS2 | Bi2S3 | PoS | At | Rn | |||
| Fr | Ra | ** | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |||
| * | LaS La2S3 | CeS Ce2S3 | PrS Pr2S3 | NdS Nd2S3 | Pm2S3 | SmS Sm2S3 | EuS Eu2S3 | GdS Gd2S3 | TbS Tb2S3 | DyS Dy2S3 | HoS Ho2S3 | ErS Er2S3 | TmS Tm2S3 | YbS Yb2S3 | |||||||
| ** | Ac2S3 | ThS2 | Pa | US US2 | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | |||||||
