Pure benzene (benzene)

Physical and chemical properties

Color and odor status: colorless and transparent volatile liquid with aromatic odor

Toxicity: vapor is toxic

Flammability: highly flammable

Density: 0.8765

Volatility: volatile

Boiling point: 80.1℃

Decomposability: not easy to decompose

Stability: stable

Melting point: 5.51℃

Auto-ignition point: 562.2℃

Viscosity: 0.647mPa. s

Flash point: -11℃ 

Solubility: volatile, miscible with organic solvents such as ethanol, ether, acetone, chloroform, glacial acetic acid, carbon disulfide, carbon tetrachloride and oils

Code

CAS: 71-43-2

Uses

Basic chemical raw materials, used as solvents and synthetic benzene derivatives, spices, dyes, plastics, medicines, explosives, rubber, etc.

Hazard category

Class 3.1 highly flammable liquid

Fire-fighting measures

Fire fighting method: Move the container from the fire scene to an open place as much as possible. Keep the fire container cool by spraying water until the fire is over. If the container in the fire scene has changed color or produces sound from the safety relief device, it must be evacuated immediately.

Fire extinguishing agent: alcohol-resistant foam, dry powder, carbon dioxide, sandy soil.

Emergency treatment

Leave the poisoning scene immediately, move to a place with fresh air and a quiet environment, change the contaminated clothes; give oxygen quickly to keep the respiratory tract smooth. Give mental comfort, overcome tension, ensure that the patient is absolutely bed rest, and prevent excessive restlessness. Those who take it by mistake should use 0.5% activated carbon suspension and 1% to 5% sodium bicarbonate solution alternately for gastric lavage, and then use 25-30g sodium sulfate for catharsis (no vegetable oil). If benzene splashes into the eyes, rinse them thoroughly with clean water immediately.

Packaging, storage, transportation

Packed in paint bucket, 180kg/drum, stored in a cool and ventilated warehouse. Keep away from fire and heat sources. The temperature of the warehouse should not exceed 37℃. Keep the container tightly closed. should be kept away from oxidizer, do not store together. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that easily generate sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable storage materials.