Colorless oily liquid with an aromatic odor. Freezing point -30.6 ℃. Boiling point is 145 ℃. Relative density 0.9051. Flash point (open cup) 31 11 ℃. The self ignition point is 490 ℃. The refractive index is 1.5467. Viscosity (20 ℃) 0.763mPa-s. Slightly soluble in water, soluble in ethanol, ether, methanol, acetone, and carbon disulfide. When heated or exposed to sunlight, or in the presence of peroxides, it is prone to polymerization, releasing heat during polymerization and can cause explosions. Explosion limit: 1.1% to 6 1% (volume).

This product is mainly used as a raw material for polystyrene, styrene butadiene rubber engineering plastics (such as ABS, AAS, etc.), ion exchange resins, pharmaceuticals, etc.