| Melting point |
-87 °C (lit.) |
| Boiling point |
80 °C (lit.) |
| Density |
0.805 g/mL at 25 °C (lit.) |
| vapor density |
2.49 (vs air) |
| vapor pressure |
71 mm Hg ( 20 °C) |
| refractive index |
n20/D 1.379(lit.) |
| FEMA |
2170 | 2-BUTANONE |
| Flash point |
26 °F |
| storage temp. |
2-8°C |
| solubility |
Miscible with acetone, ethanol, benzene, ether (U.S. EPA, 1985), and many other solvents,
particularly ketones and aldehydes |
| form |
Solution |
| pka |
14.7 (quoted, Riddick et al., 1986) |
| color |
Colorless |
| Odor |
Sweet/sharp odor detectable at 2 to 85 ppm (mean = 16 ppm) |
| PH |
pH(1+4, 25℃):6.0～7.0 |
| Relative polarity |
0.327 |
| explosive limit |
1.8-11.5%(V) |
| Odor Threshold |
0.44ppm |
| Odor Type |
ethereal |
| Water Solubility |
290 g/L (20 ºC) |
| Merck |
14,6072 |
| JECFA Number |
278 |
| BRN |
741880 |
| Henry's Law Constant |
23.0 at 50.00 °C, 34.1 at 60.00 °C, 50.6 at 70.00 °C, 70.4 at 80.00 °C (headspace-GC, Hovorka et
al., 2002) |
| Exposure limits |
TLV-TWA, PEL 590 mg/m3 (200 ppm)
(ACGIH, OSHA); STEL 885 mg/m3
(300 ppm) (ACGIH); IDLH 3000 ppm
(NIOSH). |
| Dielectric constant |
18.5（20℃） |
| Stability |
Stable. Highly flammable. Incompatible with oxidizing agents, bases, strong reducing agents. Protect from moisture. |
| LogP |
0.3 at 40℃ |
| Surface tension |
23.69mN/m at 298.15K |
| CAS DataBase Reference |
78-93-3(CAS DataBase Reference) |
| NIST Chemistry Reference |
2-Butanone(78-93-3) |
| EPA Substance Registry System |
Methyl ethyl ketone (78-93-3) |
