Antimony pentachloride
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| Antimony pentachloride | |
|---|---|
| Image:Antimony pentachloride.jpg | |
| IUPAC name | Antimony pentachloride |
| Other names | Antimonic chloride; antimony(V) chloride; antimony quintachloride |
| Identifiers | |
| CAS number | [7647-18-9] |
| Properties | |
| Molecular formula | SbCl5 |
| Molar mass | 299.024 g/mol |
| Appearance | Colourless or yellow (fuming) liquid |
| Density | 2.34 g/cm³, ? |
| Melting point |
4°C (277 K) |
| Boiling point |
140°C |
| Solubility in water | Reacts |
| Structure | |
| Molecular shape | Trigonal bipyramidal |
| Dipole moment | 0 D |
| Hazards | |
| Main hazards | Corrosive, respiratory irritant |
| Flash point | Does not burn |
| Related compounds | |
| Other anions | Antimony pentafluoride; antimony pentabromide; antimony pentaiodide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Antimony pentachloride is a very corrosive substance, and fumes in moist air. It reacts with water vigorously to give a strongly acidic solution consisting mainly of hydrochloric acid (with some dissolved antimony(V)). This is due to the hydrolysis of this compound. It is very soluble in hydrochloric acid and solutions containing the chloride ion, due to complex formation:
SbCl5 + Cl− → SbCl6−
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