Methyl Ethyl Ketone (MEK)
Business segment & products
Methyl Ethyl Ketone (MEK)
Our MEK is used for a paint solvent, printing ink, bonding agent, etc.
| ▼ Molecular Formula | ▼ ENCS No. | ▼ CAS No. | ▼ Structural Formula |
|---|---|---|---|
| Ｃ4Ｈ8Ｏ | 2-542 | 78-93-3 |
 |
PHYSICAL PROPERTIES
| ▼ TEST | ▼ UNIT | ▼ ANALYSIS |
|---|---|---|
| Molecular Weight | 72.10 | |
| Boiling Point | ℃ | 79.6 |
| Melting Point | ℃ | -87.3 |
| Specific Gravity at 20/4℃ | 0.8047 | |
Refractive index （ ） |
1.3787 | |
| Interfacial Tension (20℃) | N/cm | 246×10-6 |
| Latent Heat of Evaporation | Ｊ/ｇ | 443.7 |
| Specific Heat at 20℃ | Ｊ/ｇ・℃ | 2.09 |
| Critical Temperature | ℃ | 260 |
| Critical Pressure | ＭＰａ | 4.39 |
| Water Azeotrope Boiling Point (0.1MPa) | ℃ | 73.41 |
| Content of azeotrope | ｗｔ％ | ＭＥＫ88.7 |
| Coefficient of Expansion (20℃) | 0.0013 | |
| Flash Point (Tag closed cup tester) | ℃ | -7.2 |
| Combastion Point | ℃ | 514 |
| Explosive Limits in Air | vol％ | 1.7～11.4 |
SPECIFICATIONS AND TYPICAL ANALYSIS
| ▼ TEST | ▼ UNIT | ▼ SPECIFICATIONS | ▼ TYPICAL ANALYSIS |
|---|---|---|---|
| Appearance | Clear and Colorless | Clear and Colorless | |
| Water | % | 1.0 MAX. | |
| Free Acid as Acetic Acid | % | 0.003 MAX. | 0.0005 |
| Distillation Test
Initial Boiling Point Dry Point Total Distillation |
℃ ℃ vol% |
79.0 MIN. 80.5 MAX. 97 MIN. |
79.4 79.9 99.0 |
| Nonvolatile Matter | % | 0.003 MAX. | 0.001 |
| Specific Gravity at 20/20℃ | 0.805～0.807 | 0.8062 | |
| Color | Hazen Unit | 20 MAX. | - |
| Composition(MEK purity) | % | 99.9 |
MAJOR USE:Solvent for paint, lube-oil dewaxing, adhesive and printing ink, Raw material for organic syntheses.
UN CLASS 3 UN NO.1193
Note
The descriptions herein are based on the available sources and information but no guarantee is given for its integrity or accuracy.