| Melting point: |
131-133 °C (lit.) |
| Boiling point: |
167.16°C (rough estimate) |
| alpha |
[α]D20 -0.5～+0.5° (c=5, H2O) |
| Density |
1.609 |
| vapor density |
4.6 (vs air) |
| vapor pressure |
<0.1 mm Hg ( 20 °C) |
| refractive index |
1.3920 (estimate) |
| Flash point: |
203 °C |
| storage temp. |
2-8°C |
| solubility |
methanol: 0.1 g/mL, clear, colorless |
| pka |
3.4(at 25℃) |
| form |
Solid |
| color |
White to Almost white |
| Odor |
at 100.00 %. odorless |
| PH |
3.33(1 mM solution);2.74(10 mM solution);2.21(100 mM solution); |
| optical activity |
[α]/D 0.10 to +0.10° |
| Odor Type |
odorless |
| Water Solubility |
558 g/L (20 ºC) |
| Merck |
14,5707 |
| BRN |
1723539 |
| LogP |
-6.14 at 20℃ |
| CAS DataBase Reference |
6915-15-7(CAS DataBase Reference) |
| NIST Chemistry Reference |
Hydroxybutanedioic acid(6915-15-7) |
| EPA Substance Registry System |
Malic acid (6915-15-7) |