CAS 64-17-5: Ethanol (C2H6O)
Identity
| CAS Number | 64-17-5 |
| Molecular Formula | C2H6O |
| IUPAC Name | ethanol |
| Molecular Weight | 46.07 g/mol |
| SMILES | CCO |
| Synonyms | ethyl alcohol, grain alcohol, EtOH, absolute alcohol |
2D Structure
Physical Properties
| Density | 0.789 g/mL at 25°C |
| Boiling Point | 78.37°C |
| Melting Point | -114.1°C |
| Flash Point | 13.0°C |
| Vapor Pressure | 5.95 kPa at 20°C |
| Refractive Index | nD = 1.361 |
| Dielectric Constant | ε = 24.3 |
Safety & GHS Classification
Flammable
- H225: Highly flammable liquid and vapor
Storage: Store in flammable liquid storage cabinet. Denatured alcohol contains toxic additives to prevent consumption. Anhydrous ethanol is hygroscopic. Keep away from ignition sources. Use in well-ventilated area.
Material Compatibility Matrix
Plastics
| Material | Rating |
|---|---|
| PTFE | Excellent |
| PVC | Good |
| PE | Good |
| PP | Excellent |
| PEEK | Excellent |
| PVDF | Excellent |
Rubbers
| Material | Rating |
|---|---|
| Viton | Good |
| NBR | Good |
| EPDM | Excellent |
| Silicone | Good |
| FKM | Good |
Metals
| Material | Rating |
|---|---|
| Stainless 316 | Excellent |
| Aluminum | Good |
| Copper | Good |
| Brass | Good |
Applications
- Alcoholic beverages
- Pharmaceutical solvent and excipient
- Hand sanitizer (60-80% ethanol)
- Fuel additive (E10, E85)
- Chemical intermediate (ethyl acetate, acetaldehyde)
- Laboratory solvent and cleaning
- Cosmetics and personal care
- Industrial solvent and extractant
External References: PubChem