F177021
Selenium dichloride oxide , 99 , 7791-23-3
Synonym(s):
Seleninyl chloride
CAS NO.：7791-23-3
Empirical Formula: Cl2OSe
Molecular Weight: 165.87
MDL number: MFCD00016327
EINECS: 232-244-0
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 9 °C |
| Boiling point: | 180 °C(lit.) |
| Density | 2.43 g/mL at 25 °C(lit.) |
| refractive index | 1.651 |
| Flash point: | 176.4°C |
| solubility | Miscible with chloroform, carbon disulphide and benzene. |
| form | Liquid |
| color | Yellow |
| Specific Gravity | 2.42 |
| Water Solubility | decomposed in H2O to HCl, selenious acid; miscible with CCl4, CHCl3, CS2, benzene, toluene [MER06] |
| Sensitive | Moisture Sensitive |
| Merck | 14,8435 |
| Exposure limits | ACGIH: TWA 0.2 mg/m3 NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 |
| Dielectric constant | 46.0 |
| Stability: | Stable, but reacts with water and moisture. Incompatible with water, potassium, phosphorus. |
| CAS DataBase Reference | 7791-23-3(CAS DataBase Reference) |
| EPA Substance Registry System | Selenium oxychloride (7791-23-3) |
Description and Uses
Selenium(IV) chloride oxide is used as a polar solvent for synthetic phenolic resins. It is also used to prepare selenium oxybromide and selenium nitride. It acts as a chlorinating agent.
Safety
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H301+H331-H373-H410 |
| Precautionary statements | P260-P264-P273-P301+P310-P304+P340+P311-P314 |
| Hazard Codes | T,N |
| Risk Statements | 14-23/25-33-35-50/53 |
| Safety Statements | 26-36/37/39-45-60-61-28-20/21 |
| RIDADR | UN 2879 8/PG 1 |
| WGK Germany | 3 |
| RTECS | VS7000000 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | I |
| HS Code | 28121099 |
| Hazardous Substances Data | 7791-23-3(Hazardous Substances Data) |
| Toxicity | LD50 s.c. in rabbits: 7 mg/kg (Wilber) |
