CAS 78-93-3: MEK (Methyl Ethyl Ketone) (C4H8O)
Identity
| CAS Number | 78-93-3 |
| Molecular Formula | C4H8O |
| IUPAC Name | butan-2-one |
| Molecular Weight | 72.11 g/mol |
| SMILES | CCC(=O)C |
| Synonyms | 2-butanone, ethyl methyl ketone, butanone |
2D Structure
Physical Properties
| Density | 0.805 g/mL at 25°C |
| Boiling Point | 79.6°C |
| Melting Point | -86.7°C |
| Flash Point | -9°C |
| Vapor Pressure | 10.5 kPa at 20°C |
| Refractive Index | nD = 1.379 |
| Dielectric Constant | ε = 18.5 |
Safety & GHS Classification
FlammableIrritant
- H225: Highly flammable liquid and vapor
- H319: Causes serious eye irritation
- H336: May cause drowsiness or dizziness
Storage: Store in cool, well-ventilated area. Keep away from heat and ignition sources. Use explosion-proof equipment.
Material Compatibility Matrix
Plastics
| Material | Rating |
|---|
| PTFE | Excellent |
| PVC | Poor |
| PE | Fair |
| PP | Good |
| PEEK | Excellent |
| PVDF | Good |
Rubbers
| Material | Rating |
|---|
| Viton | Poor |
| NBR | Severe Effect |
| EPDM | Good |
| Silicone | Poor |
| FKM | Poor |
Metals
| Material | Rating |
|---|
| Stainless 316 | Excellent |
| Aluminum | Excellent |
| Copper | Excellent |
| Brass | Excellent |
Applications
- Industrial solvent for coatings and adhesives
- PVC and vinyl resin solvent
- Paint remover
- Chemical intermediate
- Printing ink solvent
External References: PubChem
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