Specifications

Basic information

Colorless transparent liquid; It is the product of two hydrogen substituted by methyl on the benzene ring. There are three isomers, namely, ortho, meta and pair. In industry, xylene refers to the mixture of the above isomers. The pollution of xylene mainly comes from synthetic fibers, plastics, fuels, rubber, additives of various coatings and various adhesives, waterproof materials, and also from the combustion gas of fuel and tobacco leaves. Xylene is moderately toxic and has a certain carcinogenicity. It is harmful to people and should be avoided in life.

Application areas

Widely used in coatings, resins, dyes, inks and other industries as solvents; used in medicine, explosives, pesticides and other industries as synthetic monomers or solvents; can also be used as high octane gasoline components, is an important raw material for organic chemicals. It can also be used to remove asphalt from the car body. The hospital pathology department mainly uses the preparation. Mainly used for dehydration, dewaxing.

Packaging, transportation and safety

Emergency treatment of leakage

Quickly evacuate the personnel from the leakage pollution area to the safety area, isolate them and strictly restrict the access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and fire protection clothing. Cut off leakage sources as much as possible to prevent entry into restricted spaces such as sewers and flood discharge ditches. Small amount of leakage: with activated carbon or other inert material absorption. It can also be scrubbed with an emulsion made of a non-flammable dispersant, and the washing liquid is diluted and put into the waste water system. Large leakage: build a dam or dig a pit to contain it; cover it with foam to inhibit evaporation. Transfer to tanker or special collector with explosion-proof pump, recycle or transport to waste treatment site for disposal. Quickly collect the soil contaminated with xylene and transfer it to a safe area. Strengthen ventilation along the ground in contaminated areas to evaporate residual liquid and remove vapor. Quickly build dams to cut off the flow of contaminated water bodies, and use fences, etc. to limit the spread of surface xylene.

Protective measures

Respiratory protection: When the concentration in the air is high, wear a filtering gas mask (half mask). In case of emergency rescue or evacuation, it is recommended to wear air respirator.

Eye protection: wear chemical safety goggles.

Body protection: wear anti-poison penetration overalls.

Hand protection: wear rubber gloves.

Other: Smoking, eating and drinking are prohibited at the work site. After work, shower and change clothes. Pay attention to personal hygiene.

First aid measures

Skin contact: remove contaminated clothing and rinse skin thoroughly with soap and water.

Eye contact: Lift the eyelid and flush with flowing water or normal saline. Seek medical attention.

Inhalation: quickly leave the scene to fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Seek medical attention.

Intake: Drink plenty of water and induce vomiting. Seek medical attention.

4. treatment of xylene in the decoration of pollution methods are: bamboo charcoal adsorption method and chemical agent reaction method! The former for the physical role, the latter for the chemical role!

fire extinguishing method

Spray water to cool the container and move the container from the fire to an open area if possible. Extinguishing agent: foam, carbon dioxide, dry powder, sand.

Hazardous characteristics

Flammable, its vapor and air can form an explosive mixture. Burning and explosion caused by open fire and high heat energy. Can react strongly with oxidants. If the flow rate is too fast, it is easy to generate and accumulate static electricity. Its vapor is heavier than air and can diffuse to a considerable distance at a lower level, causing backburning in case of an open flame.

Combustion (decomposition) products: carbon monoxide, carbon dioxide.

Packaging, storage and transportation

Packed in galvanized iron drums, 180kg per barrel. It can also be shipped by tanker.