Arsenic triiodide
| Names | |
|---|---|
| Preferred IUPAC name
Arsenic triiodide | |
| Systematic IUPAC name
Triiodoarsane | |
| Other names
Arsenic(III) iodide
Arsenous iodide | |
| Identifiers | |
3D model (JSmol)
|
|
| ChemSpider | |
| ECHA InfoCard | 100.029.153 |
| EC Number |
|
PubChem CID
|
|
| RTECS number |
|
| UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
| Properties | |
| AsI3 | |
| Molar mass | 455.635 g/mol |
| Appearance | orange-red crystalline solid |
| Density | 4.69 g/cm3 |
| Melting point | 146 °C (295 °F; 419 K) |
| Boiling point | 403 °C (757 °F; 676 K) |
| 6 g/100 mL | |
| Solubility | soluble in alcohol, ether, CS2 dissolves in chloroform, benzene, toluene |
| −142.0·10−6 cm3/mol | |
Refractive index (nD)
|
2.23 |
| Structure | |
| Rhombohedral, hR24, SpaceGroup = R-3, No. 148 | |
| Hazards | |
| NIOSH (US health exposure limits): | |
PEL (Permissible)
|
[1910.1018] TWA 0.010 mg/m3 |
REL (Recommended)
|
Ca C 0.002 mg/m3 [15-minute] |
IDLH (Immediate danger)
|
Ca [5 mg/m3 (as As)] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
| |
Arsenic triiodide is the inorganic compound with the formula AsI3. It is an orange to dark red solid that readily sublimes. It is a pyramidal molecule that is useful for preparing organoarsenic compounds.