Names | |
---|---|
Other names
Polonium monosulfide
[1]
| |
Identifiers | |
3D model (
JSmol)
|
|
| |
| |
Properties | |
PoS | |
Molar mass | 241.07 g/mol |
Appearance | Black crystals |
Melting point | 500 °C (932 °F; 773 K) |
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).
|
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]
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:
Polonium sulfide forms black solid crystals, insoluble in water, ammonium sulfide, ethanol, acetone, or toluene.
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:
Used in the isolation and purification of polonium.
Names | |
---|---|
Other names
Polonium monosulfide
[1]
| |
Identifiers | |
3D model (
JSmol)
|
|
| |
| |
Properties | |
PoS | |
Molar mass | 241.07 g/mol |
Appearance | Black crystals |
Melting point | 500 °C (932 °F; 773 K) |
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).
|
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]
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:
Polonium sulfide forms black solid crystals, insoluble in water, ammonium sulfide, ethanol, acetone, or toluene.
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:
Used in the isolation and purification of polonium.