CAS 78-92-2: 2-Butanol (C4H10O)
Identity
| CAS Number | 78-92-2 |
| Molecular Formula | C4H10O |
| IUPAC Name | butan-2-ol |
| Molecular Weight | 74.12 g/mol |
| SMILES | CCC(C)O |
| Synonyms | sec-butanol, sec-butyl alcohol, 2-butyl alcohol, methyl ethyl carbinol |
2D Structure
Physical Properties
| Density | 0.808 g/mL at 25°C |
| Boiling Point | 99.5°C |
| Melting Point | -114.7°C |
| Flash Point | 24.0°C |
| Vapor Pressure | 1.7 kPa at 20°C |
| Refractive Index | nD = 1.397 |
| Dielectric Constant | ε = 16.6 |
Safety & GHS Classification
FlammableIrritant
- H226: Flammable liquid and vapor
- H319: Causes serious eye irritation
- H336: May cause drowsiness or dizziness
Storage: Store in well-ventilated area away from ignition sources. Keep container tightly sealed. Use explosion-proof equipment.
Material Compatibility Matrix
Plastics
| Material | Rating |
|---|---|
| PTFE | Excellent |
| PVC | Fair |
| PE | Good |
| PP | Good |
| PEEK | Excellent |
| PVDF | Good |
Rubbers
| Material | Rating |
|---|---|
| Viton | Good |
| NBR | Good |
| EPDM | Excellent |
| Silicone | Good |
| FKM | Good |
Metals
| Material | Rating |
|---|---|
| Stainless 316 | Excellent |
| Aluminum | Excellent |
| Copper | Excellent |
| Brass | Excellent |
Applications
- Solvent for paints, lacquers, and varnishes
- Chemical intermediate for methyl ethyl ketone production
- Paint remover component
- Industrial cleaning solvent
- Flavor and fragrance manufacturing
- Hydraulic brake fluid component
External References: PubChem