A6668312
Phenylacetylene , 97% , 536-74-3
Synonym(s):
Ethynylbenzene;Phenylacetylene
CAS NO.：536-74-3
Empirical Formula: C8H6
Molecular Weight: 102.13
MDL number: MFCD00008570
EINECS: 208-645-1
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -44.8 °C |
| Boiling point: | 142-144 °C (lit.) |
| Density | 0.93 g/mL at 25 °C (lit.) |
| vapor pressure | 17.6 mm Hg ( 37.7 °C) |
| refractive index | n |
| Flash point: | 88 °F |
| storage temp. | Store at +2°C to +8°C. |
| solubility | H2O: insoluble |
| pka | 19(at 25℃) |
| form | Liquid |
| color | Clear colorless to yellow |
| Specific Gravity | 0.930 |
| Water Solubility | INSOLUBLE |
| Sensitive | Light Sensitive |
| Merck | 14,3861 |
| BRN | 605461 |
| Dielectric constant | 3.0（20℃） |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents, acids, halogens. |
| CAS DataBase Reference | 536-74-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenylacetylene(536-74-3) |
| EPA Substance Registry System | Phenylacetylene (536-74-3) |
Description and Uses
Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas.
Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
Terminal acetylene used in the conversion of nitrones to alkynyl hydroxyl amines in the presence of trimethylaluminum..
Safety
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H226-H315-H319-H335-H350 |
| Precautionary statements | P202-P210-P233-P303+P361+P353-P305+P351+P338-P308+P313 |
| Hazard Codes | Xn |
| Risk Statements | 10-36/37/38-40-65-36/37 |
| Safety Statements | 16-26-36/37/39-45-62-36/37 |
| RIDADR | UN 3295 3/PG 3 |
| WGK Germany | 1 |
| RTECS | DA0780000 |
| F | 8-19 |
| TSCA | Y |
| HS Code | 2902 90 00 |
| HazardClass | 3 |
| PackingGroup | III |
