| Physical Description |
O-nitrotoluene is a light yellow oily liquid with a characteristic odor of aromatic nitro compounds. Sinks in water. Derived from toluene by nitration and separation by fractional distillation. Flash point 223 °F. |
| Color/Form |
Yellowish liquid at ordinary temperature |
| Odor |
Weak, aromatic odor |
| Boiling Point |
431.1 °F at 760 mmHg (NTP, 1992) |
| Melting Point |
14.9 °F (NTP, 1992) |
| Flash Point |
223 °F (NTP, 1992) |
| Solubility |
less than 1 mg/mL at 70 °F (NTP, 1992) |
| Density |
1.1622 at 66.2 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density |
4.72 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure |
0.1 mmHg at 68 °F ; 0.25 mmHg at 86 °F; 1.6 mmHg at 140 °F (NTP, 1992) |
| LogP |
log Kow = 2.30 |
| Henry's Law Constant |
Henry's Law constant = 1.25X10-5 atm-cu m/mole at 25 °C |
| Stability/Shelf Life |
/Heat contributes/ ... to instability. /Nitrotoluene/ |
| Autoignition Temperature |
581 °F (NTP, 1992) |
| Decomposition |
The substance decomposes ... /to/ form nitrogen oxides, carbon monoxide. |
| Viscosity |
2.7 mPa (= cP) |
| Heat of Combustion |
-11,290 Btu/lb = -6,272 cal/g = -262 x 10+5 J/kg |
| Heat of Vaporization |
12,239.1 gcal/gmole |
| Surface Tension |
In dynes/cm: 42.29, 41.76, and 40.50 at 15, 19.5, 20, and 30 °C, respectively |
| Ionization Potential |
9.43 eV |
| Odor Threshold |
Odor Threshold Low: 0.05 [mmHg] Odor threshold from "Quick Guide: The Electronic NIOSH Pocket Guide to Chemical Hazards" |
| Refractive Index |
Index of refraction: 1.5472 at 20 °C/D |
| Kovats Retention Index |
1155 1153.4 |
| Other Experimental Properties |
Volatile with steam |
| Chemical Classes |
Nitrogen Compounds -> Nitros, Aromatic |
