| Names | |
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| Systematic IUPAC name
Polonium tetrachloride | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| PoCl4 | |
| Molar mass | 350.79 g/mol |
| Appearance | Bright yellow crystalline solid[1] |
| Melting point | ≈ 300 °C (inchlorine)[1] |
| Boiling point | 390 °C (734 °F; 663 K) |
| soluble,[vague] but rather slow hydrolysis | |
| Solubility | very soluble in hydrochloric acid and thionyl chloride, moderately soluble in ethanol and acetone, decomposes in dilute nitric acid |
| Related compounds | |
Other anions |
Polonium tetrafluoride Polonium tetrabromide Polonium tetraiodide |
Other cations |
Selenium tetrachloride Tellurium tetrachloride |
Related compounds |
Polonium dichloride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Polonium tetrachloride (also known as polonium(IV) chloride) is a chemical compound with the formula PoCl4. The salt is a hygroscopic bright yellow crystalline solid at room temperature. Above 200 °C, it tends to decompose into polonium dichloride and excess chlorine, similar to selenium tetrachloride and tellurium tetrachloride.[1]
Polonium tetrachloride is either monoclinicortriclinic.
Polonium tetrachloride is bright yellow at room temperature. At its melting point (300 °C), it becomes straw yellow, and at its boiling point (390 °C), it becomes scarlet. Its vapours are purple-brown until 500 °C, when they turn blue-green.[1]
Polonium tetrachloride may be prepared by:
Polonium tetrachloride forms a complex with two molesoftributyl phosphate.
Like selenium tetrachloride and tellurium tetrachloride, polonium tetrachloride forms PoCl−
5 and PoCl2−
6 halogen complexes.[1]
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| Polonium(−II) |
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| Polonium(II) |
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| Polonium(IV) |
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| Polonium(VI) |
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