4984-82-1
| Name | SODIUM CYCLOPENTADIENIDE |
| CAS | 4984-82-1 |
| EINECS(EC#) | 225-636-8 |
| Molecular Formula | C5H5Na |
| MDL Number | MFCD00012161 |
| Molecular Weight | 88.08 |
| MOL File | 4984-82-1.mol |
Chemical Properties
| Appearance | White to greyish or yellowish powder |
| Melting point | 172 °C |
| density | 0.946 g/mL at 20 °C |
| Fp | 1 °F |
| storage temp. | 2-8°C |
| form | Liquid |
| color | dark red |
| Water Solubility | Reacts with water. |
| Sensitive | Air & Moisture Sensitive |
| Detection Methods | T |
| BRN | 969542 |
| Exposure limits | ACGIH: TWA 50 ppm; STEL 100 ppm (Skin) OSHA: TWA 200 ppm(590 mg/m3) NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3) |
| InChI | InChI=1S/C5H5.Na/c1-2-4-5-3-1;/h1-5H; |
| InChIKey | PDTZVKVFAJGNRV-UHFFFAOYSA-N |
| SMILES | C1([Na])C=CC=C1 |
| CAS DataBase Reference | 4984-82-1(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium, 2,4-cyclopentadien-1-yl- (4984-82-1) |
Safety Data
| Symbol(GHS) |     GHS02,GHS05,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225-H260-H314-H335-H336-H351 |
| Precautionary statements | P210-P231+P232-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | F,Xi |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 1993 3/PG 2 |
| WGK Germany | 3 |
| F | 1-10 |
| TSCA | Yes |
| HazardClass | 4.3 |
| PackingGroup | II |
| HS Code | 29319090 |
| Storage Class | 4.3 - Hazardous materials which set free flammable gases upon contact with water |
| Hazard Classifications | Carc. 2 Eye Dam. 1 Flam. Liq. 2 Skin Corr. 1B STOT SE 3 Water-react 1 |