Name | Phenylselenol |
Synonyms | SELENOPHENOL Phenylselenol PHENYLSELENOL phenylselanyl Selenylbenzene BENZENESELENOL benzeneselenol Phenol, seleno- Benzene, selenyl- HYDROSELENOBENZENE Benzeneselenol~Selenophenol |
CAS | 645-96-5 |
EINECS | 211-457-2 |
InChI | InChI=1/C6H5Se/c7-6-4-2-1-3-5-6/h1-5H |
Molecular Formula | C6H6Se |
Molar Mass | 157.07 |
Density | 1.479 g/mL at 25 °C (lit.) |
Boling Point | 71-72 °C/18 mmHg (lit.) |
Flash Point | 158°F |
Water Solubility | Not miscible or difficult to mix in water. |
Appearance | liquid |
Color | gold-yellow |
Exposure Limit | ACGIH: TWA 0.2 mg/m3NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 |
BRN | 385715 |
pKa | 4.73±0.70(Predicted) |
Storage Condition | 2-8℃ |
Sensitive | Air Sensitive |
Refractive Index | n20/D 1.616(lit.) |
MDL | MFCD00000001 |
Physical and Chemical Properties | Colorless, malodorous oily liquid. Boiling point 183.6 ℃,57-59 ℃(1.07kPa), refractive index 1.6156, relative density 1.479. |
Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R33 - Danger of cumulative effects R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 2810 6.1/PG 2 |
WGK Germany | 3 |
FLUKA BRAND F CODES | 10-23 |
TSCA | Yes |
HS Code | 29319090 |
Hazard Class | 6.1 |
Packing Group | II |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | is used in the synthesis reaction. |
production method | the air of the reaction system is replaced with dry hydrogen, phenylmagnesium bromide is prepared by reacting bromobenzene and magnesium in absolute diethyl ether, and dry selenium powder is then added under reflux with stirring. The mixture was poured into crushed ice and reacted with concentrated hydrochloric acid. After the reactants were stratified, the organic phase was distilled off with diethyl ether, and the residue was distilled under reduced pressure to collect the 57-59 ° C. (1.07kPa) fraction to obtain the selenophenol. |