Heavy benzene and its harmfulness

   Date:2021-03-30     Author:zhykxclkj    Browse:37    
Core tips:first-aidSkin contact: Thoroughly rinse the skin contacted with benzene with soapy water and clean water.Eye contact: Op
 first-aid
Skin contact: Thoroughly rinse the skin contacted with benzene with soapy water and clean water.
Eye contact: Open the upper and lower eyelids immediately, rinse with running water or saline for at least 15 minutes, and seek medical attention.
Inhalation: quickly leave the scene to a place with fresh air. Keep the airway unobstructed. Give oxygen when breathing is difficult. If breathing and heartbeat stop, perform artificial respiration and cardiac massage immediately. Seek medical attention. Avoid adrenaline.
Ingestion: Drink enough warm water, induce vomiting, and seek medical attention.
Fire-fighting measures
Hazardous characteristics: Its vapor and air form an explosive mixture, which can cause combustion and explosion when exposed to open flames and high heat energy. It can react strongly with oxidants. Its vapor is heavier than air and can spread to a relatively far place in a lower place, and it will reignite when it encounters a fire source. In case of high heat, the internal pressure of the container will increase and there is a danger of cracking and explosion. If the flow rate is too fast, it is easy to generate and accumulate static electricity.
Hazardous combustion products: CO, CO2
Fire extinguishing methods and extinguishing agents: Foam, carbon dioxide, dry powder, sand can be used to extinguish the fire, but water is ineffective.
Leakage emergency treatment
Emergency treatment: cut off the fire source. Quickly evacuate personnel from the leaked contaminated area to a safe area, isolate them, and strictly restrict access. It is recommended that emergency response personnel wear self-contained positive pressure respirators and anti-virus suits. Cut off the source of leakage as much as possible. Prevent entry into restricted spaces such as sewers and flood drains.
Small amount of leakage: collect the spilled liquid in a closed container as much as possible, absorb the remaining liquid with sand, activated carbon or other inert materials, or brush with an emulsion made of non-flammable dispersant, and put the lotion diluted in the waste water system .
A large number of leaks: construct a dike or dig a pit for storage. Cover with foam to reduce steam hazards. The spray-like water cools and dilutes the steam and protects on-site personnel. Use explosion-proof pump to transfer to tank truck or special collector, recycle or transport to waste treatment plant for disposal.
 
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