| Melting point: |
127-128 °C |
| Boiling point: |
402°C |
| Density |
1.25 |
| vapor pressure |
Based on the specific vapor density value of 6.36 (Sims et al., 1988), the vapor pressure wascalculated to be 0.83 at 20 °C. |
| refractive index |
1.6266 (estimate) |
| Flash point: |
11 °C |
| storage temp. |
2-8°C |
| solubility |
Soluble in ethanol (U.S. EPA, 1985) and ether (1 g/50 mL) (Windholz et al., 1983) |
| pka |
4.66(at 30℃) |
| color |
Grayish-yellow, crystalline powder; white or sltlyreddish crystals, powder |
| Water Solubility |
Sparingly soluble. <0.1 g/100 mL at 22 ºC |
| Merck |
13,1077 |
| BRN |
742770 |
| Henry's Law Constant |
(x 10-11 atm?m3/mol):
3.88 at 25 °C (estimated, Howard, 1989) |
| Exposure limits |
Because it is a carcinogen and readily
absorbed through skin, no TLV has been
assigned. Exposure should be at an absolute
minimum.
Recognized Human Carcinogen (ACGIH);
Human Carcinogen (MSHA); Carcinogen
(OSHA); Human Sufficient Evidence, Animal Sufficient Evidence (IARC). |
| Stability: |
Stable. Combustible. Incompatible with strong oxidizing agents. |
| InChIKey |
HFACYLZERDEVSX-UHFFFAOYSA-N |
| CAS DataBase Reference |
92-87-5(CAS DataBase Reference) |
| IARC |
1 (Vol. 29, Sup 7, 99, 100F) 2012 |
| NIST Chemistry Reference |
Benzidine(92-87-5) |
| EPA Substance Registry System |
Benzidine (92-87-5) |