| Melting point: |
−11 °C(lit.) |
| Boiling point: |
21 °C(lit.) |
| Density |
2.62 g/mL at 25 °C(lit.) |
| vapor density |
1.58 (21 °C, vs air) |
| vapor pressure |
14.33 psi ( 20 °C) |
| solubility |
reacts with H2O |
| form |
brown gas |
| color |
brown gas; equil with
NO 4 |
| Odor |
Pungent, acrid odor detectable at 0.12 ppm |
| Odor Threshold |
0.12ppm |
| Water Solubility |
decomposes in H2O to HNO3 and releases NO; soluble conc H2SO4, HNO3 [MER06] |
| Exposure limits |
TLV-TWA 3 ppm (～6 mg/m3) (ACGIH),
ceiling in air 5 ppm (MSHA and OSHA);
STEL 5 ppm (ACGIH); IDLH 50 ppm
(NIOSH). |
| CAS DataBase Reference |
10102-44-0(CAS DataBase Reference) |
| EPA Substance Registry System |
Nitrogen dioxide (10102-44-0) |