Specifications

Basic information

Pyridine, an organic compound with the chemical formula C5H5N, is a six-membered heterocyclic compound containing one nitrogen heteroatom. It can be regarded as a compound in which one of the benzene molecules (CH) is substituted by N, so it is also called nitrogen benzene, colorless or yellowish liquid, and has a foul smell. Pyridine and its homologs are found in bone tar, coal tar, coal gas, shale oil, and petroleum. Pyridine can be used industrially as a denaturant, a dyeing aid, and a raw material for the synthesis of a range of products, including pharmaceuticals, disinfectants, dyes, etc.

Application areas

For the manufacture of vitamins, sulfa drugs, pesticides and plastics, etc.; can also be used as alkaline solvents, deacidification and acylation of good solvent; can also be used as polymerization, oxidation, acrylonitrile carbonylation reaction catalyst; can also be used as silicone rubber stabilizer, anion exchange membrane raw materials.

Packaging, transportation and safety

Fire extinguishing method: firefighters must wear filtering gas mask (full face mask) or isolation breathing apparatus, wear full-body fire protection clothing, in the upper wind direction to put out the fire. Move the container from the fire to the open as much as possible. Spray water to keep the fire container cool until the end of the fire. Containers in a fire scene that have discolored or produced sound from the safety pressure relief device must be evacuated immediately. Extinguishing agent: atomized water, foam, dry powder, carbon dioxide, sand. It is forbidden to use acid-base fire extinguishing agent.

Emergency treatment of leakage: evacuate the personnel from the leakage pollution area to the safety area quickly, 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 protective clothing. Cut off the leak source as much as possible. Prevent from flowing into restricted spaces such as sewers and flood drainage ditches.

Small amount of leakage: mixed with sand, dry lime or soda ash. It can also be washed with a large amount of water and diluted with washing water into the waste water system.

Quantity leakage: build a dam or dig a pit to accommodate it. Transfer to tank truck or special collector by pump, recycle or transport to waste disposal site.