Antimony trichloride
From Wikipedia, the free encyclopedia
| Antimony trichloride | |
|---|---|
 |
|
| General | |
| Other names | butter of antimony |
| Molecular formula | SbCl3 |
| Molar mass | 228.11 g/mol |
| Appearance | colorless solid sharp, pugnent odor |
| CAS number | [10025-91-9] |
| Properties | |
| Density and phase | 3.140 g/cm3, solid |
| Solubility in water | 6,016 g/L |
| Solubility in Organic solvents | soluble in ABS alcohol soluble in tartaric acid soluble in methylene chloride soluble in benzene soluble in acetone. |
| Melting point | 73.4°C |
| Boiling point | 222.6°C |
| Vapor Pressure | 1 mm Hg (49.2°C) sublimes |
| Hazards | |
| EU classification | not listed |
| NFPA 704 |    |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
|
Antimony trichloride (SbCl3) is a chemical compound known to the alchemists as butter of antimony. At room temperature and pressure, it exists as a soft colorless solid with a pungent odor. On contact with water, it undergoes partial hydrolysis, forming antimony oxychloride and releasing hydrogen chloride. Thus, samples of SbCl3 must be protected from moisture.
- SbCl3 + H2O → SbOCl + 2HCl,
Further indicating its Lewis acidity, SbCl3 forms adducts with chloride, e.g. [SbCl5]2-.[1]
SbCl3 is a reagent for detecting vitamin A and related carotenoids in the Carr-Price test. The antimony trichloride reacts with the carotenoid to form a blue complex that can be measured by colorimetry.
[edit] References
- ^ Zarychta, B.; Zaleski, J. "Phase transitions mechanism and distortion of SbCl63- Octahedra in Bis(n-butylammonium) Pentachloroantimonate(III) (C4H9NH3)2[SbCl5]" Zeitschrift fûr Naturforschung Section B 2006, volume 61, pages1101-1109.
[edit] External links
 |
This inorganic compound-related article is a stub. You can help Wikipedia by expanding it. |
