Chemical name |
Biphenyl |
Appearance and properties |
colorless or light yellow, flaky crystals, slightly sweet smell. |
CAS No. |
92-52-4 |
Molecular formula |
C12H10 |
Molecular weight |
154.21 |
Melting point (°C) |
69.71 |
Boiling point (°C) |
254.25 |
Relative density (water=1) |
1.04 |
Relative vapor density (air=1) |
5.80 |
Saturated vapor pressure (kPa) |
0.66 (101.8°C) |
Flash point (°C) |
113 |
Ignition temperature (℃) |
540 |
Upper limit of explosion % (V/V) |
5.8 (155°C) |
Lower explosion limit %(V/V) |
0.6(111℃) |
Solubility |
Insoluble in water, soluble in ethanol, ether, etc. |
security description |
S23; S60; S61 |
Hazard symbol XiHazard statement |
R36/37/38; R50/ |
It should be sealed in a cool place. This product is flammable, exposed to high temperature, open fire, and oxidant is dangerous to burn. It should be stored in a cool, ventilated warehouse away from kindling and heat sources, and stored separately from oxidant and strong acid substances. It should be loaded and unloaded with care, and the package should be kept intact.
Biphenyl is an important organic raw material, widely used in medicine, pesticides, dyes, liquid crystal materials and other fields. It can be used to synthesize plasticizers and preservatives, and can also be used to make fuels, engineering plastics and high-energy fuels.