| Melting point: |
100-103 °C (lit.) |
| Boiling point: |
245 °C (lit.) |
| Density |
1,371 g/cm3 |
| vapor density |
3.8 (vs air) |
| vapor pressure |
1 mm Hg ( 75 °C) |
| refractive index |
1.6120 (estimate) |
| Flash point: |
279 °F |
| storage temp. |
Store below +30°C. |
| solubility |
430g/l |
| form |
Crystalline Flakes |
| pka |
9.85(at 20℃) |
| color |
white to faintly beige |
| PH |
6 (100g/l, H2O, 20℃) |
| explosive limit |
1.97%(V) |
| Water Solubility |
430 g/L (20 ºC) |
| Sensitive |
Air & Light Sensitive |
| Merck |
14,7999 |
| BRN |
471401 |
| Exposure limits |
TLV-TWA 5 ppm (～22 mg/m3) (ACGIH). . |
| Stability: |
Stable. Substances to be avoided include acid chlorides, acid anhydrides, bases, oxidizing agents, nitric acid. Light sensitive; may discolour on exposure to air. Combustible. |
| LogP |
0.93 |
| CAS DataBase Reference |
120-80-9(CAS DataBase Reference) |
| NIST Chemistry Reference |
1,2-Benzenediol(120-80-9) |
| IARC |
2B (Vol. 15, Sup 7, 71) 1999 |
| EPA Substance Registry System |
Catechol (120-80-9) |