| Physical Description |
O-chloroaniline is a clear amber liquid with an amine odor. Occurs in both alpha and beta forms. (NTP, 1992) |
| Color/Form |
Amber liquid |
| Odor |
Characteristic sweet odor |
| Boiling Point |
406 to 410 °F at 760 mmHg (NTP, 1992) |
| Melting Point |
28.5 °F (NTP, 1992) |
| Flash Point |
208 °F (NTP, 1992) |
| Solubility |
less than 1 mg/mL at 68 °F (NTP, 1992) |
| Density |
1.213 at 68 °F (NTP, 1992) - Denser than water; will sink |
| Vapor Density |
4.4 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure |
1 mmHg at 115.3 °F ; 5 mmHg at 162.1 °F; 760 mmHg at 407.8 °F (NTP, 1992) |
| LogP |
log Kow = 1.90 |
| Henry's Law Constant |
Henry's Law constant= 5.39X10-6 (atm-cu m)/mol at 25 °C /Estimated/ |
| Stability/Shelf Life |
Darkens on exposure to air. |
| Autoignition Temperature |
>/=500 °C |
| Decomposition |
When heated to decomposition, it emits toxic fumes of /hydrogen chloride and nitrogen oxides/. |
| Viscosity |
2.9157 cP at 20 °C |
| Heat of Vaporization |
13.565 kcal/mol at 25 °C; 10.60 kcal/mol at boiling point |
| Surface Tension |
43.66 dynes/cm at 20 °C |
| Ionization Efficiency |
Positive |
| Refractive Index |
Index of refraction = 1.5895 at 20 °C/D |
| Dissociation Constants |
pKa = 2.661 at 25 °C (conjugate acid) |
| Kovats Retention Index |
1095.4 1144 1093 1095 1097 1093 1093 1092 1094 1094 |
| Other Experimental Properties |
Antoine coefficients: A= 4.15776, B= 1646.915, C= -85.259; Temperature range= 46.3-208.3 °C |
| Chemical Classes |
Nitrogen Compounds -> Amines, Aromatic |
