| Melting point: |
15 °C (monomer) |
| Boiling point: |
148 °C(lit.) |
| Density |
1.013 g/mL at 25 °C(lit.) |
| vapor pressure |
86hPa at 20℃ |
| FEMA |
2008 | ACETOIN |
| refractive index |
n20/D 1.417(lit.) |
| Flash point: |
123 °F |
| storage temp. |
2-8°C |
| solubility |
All forms are miscible with water, alcohol, Propylene glycol, Glycerine and common flavor materials. Poorly soluble in hydrocarbons. |
| form |
Liquid (Monomer) or Powder or Crystals (Dimer) |
| pka |
13.21±0.20(Predicted) |
| color |
Pale yellow to green-yellow or white to yellow |
| Odor |
Intensely creamy-fatty-buttery, penetrating odor, yet milder and less “quinone’’-like than Diacetyl, not as sharp or volatile. Pleasant in extreme dilution. |
| Odor Type |
buttery |
| Water Solubility |
H2O: 0.1g/mL, clear |
| JECFA Number |
405 |
| Merck |
14,64 |
| BRN |
385636 |
| Stability: |
Hygroscopic |
| InChIKey |
ROWKJAVDOGWPAT-UHFFFAOYSA-N |
| LogP |
0.1 at 25℃ |
| CAS DataBase Reference |
513-86-0(CAS DataBase Reference) |
| NIST Chemistry Reference |
2-Butanone, 3-hydroxy-(513-86-0) |
| EPA Substance Registry System |
2-Butanone, 3-hydroxy- (513-86-0) |