| Physical Description |
O-dichlorobenzene appears as a clear colorless liquid with a pleasant odor. Denser than water and insoluble in water. Flash point 150 °F. Toxic by inhalation and ingestion. Used to make other chemicals, solvents, fumigants and insecticides and for many other uses. |
| Color/Form |
Colorless liquid |
| Odor |
Pleasant odor |
| Boiling Point |
356.9 °F at 760 mmHg (NTP, 1992) |
| Melting Point |
1 °F (NTP, 1992) |
| Flash Point |
151 °F (NTP, 1992) |
| Solubility |
less than 1 mg/mL at 76.1 °F (NTP, 1992) |
| Density |
1.306 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density |
5.05 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure |
1 mmHg at 68 °F ; 1.5 mmHg at 77 °F (NTP, 1992) |
| LogP |
log Kow = 3.43 |
| Henry's Law Constant |
Henry's Law constant = 0.0015 atm-cu m/mol at 20 °C |
| Autoignition Temperature |
1198 °F (USCG, 1999) |
| Decomposition |
When heated to decomposition it emits toxic /hydrogen/ chloride fumes. |
| Viscosity |
1.324 mPa.s at 25 °C |
| Heat of Combustion |
-7969 Btu/lb= -4427 cal/g= -185.4X10+5 J/kg |
| Heat of Vaporization |
311 J/g |
| Surface Tension |
36.61 dyn/cm |
| Ionization Potential |
9.06 eV |
| Odor Threshold |
Odor Threshold Low: 0.02 [mmHg] Odor Threshold High: 50.0 [mmHg] Detection odor threshold from AIHA (mean = 0.70 ppm) |
| Kovats Retention Index |
1002.8 1012.2 1016 1016 1025 1030 1009 1031 1050 1013 1035 1005 1050 1045 1005 1038 1050 1019 1024 1021 1013 1005 1035.4 1015 1012.4 1027 1017 1027.1 1006 1031 1007 1008 992 995 1013 1012 1029.2 984 986 1007 1007 1009 1030 1031 1033 |
| Other Experimental Properties |
EQUIVALENCIES: 1 MG/L= 166.3 PPM AND 1 PPM= 6.01 MG/CU M @ 25 °C AND 760 MM HG |
| Chemical Classes |
Solvents -> Chlorinated Aromatics |
