Adipic acid chemical formula

Adipic acid chemical formula
Chemical formula CH3CH2OCO2. The relative molecular weight is 138.15. Melting point 176 ℃. Boiling point is 263 ℃. Refractive index 1. 557. Flash point 193 ℃. Density 1. 732g/cm3。 Melting point 183-186 ℃. Stability and stability. Ecological data: This substance may pose a threat to the environment and should be given special attention to water bodies.
Appearance: White powder. Insoluble in water, easily soluble in organic solvents such as hot ethanol and glycerol. Storage precautions: Store in a cool and ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 37 ℃. Keep the container sealed. It should be stored separately from oxidants, alkalis, and edible chemicals, and avoid mixing storage. Equip with corresponding types and quantities of fire-fighting equipment. The storage area should be equipped with suitable materials to contain leaked materials. The method is obtained by refluxing hexanediol and concentrated sulfuric acid in water or medium. Add hexanediol into the reactor, introduce nitrogen protection, slowly add concentrated sulfuric acid, and control the dripping speed to complete the addition. When the acid is added, continue stirring and refluxing for 3 hours, and then evaporate the solvent under reduced pressure. Filter while hot, add dilute hydrochloric acid to adjust pH 5-6 after the filtrate cools, then add water to reach about 120 ℃, precipitate crystals, centrifuge, dry, and sieve to obtain the finished product. Used as an intermediate in pharmaceuticals and pesticides. Also used in organic synthesis. Used for manufacturing organic synthesis materials, antibiotics, insecticides, etc. Safety information dangerous transportation code: UN12503 Safety label: S13 Explanation: Health hazard: This product has a strong irritant effect on the eyes, skin, and mucous membranes. After ingestion, there may be drooling, vomiting, bloody stools, dizziness, headache, hallucinations, and convulsions. In severe cases, death may occur due to respiratory paralysis. Explosive hazard: This product supports combustion and has strong irritant properties. Skin contact: Immediately remove contaminated clothing and rinse with plenty of flowing water for at least 15 minutes. Seek medical attention. Eye contact: Immediately lift the eyelids and thoroughly rinse with plenty of flowing water or saline solution for at least 15 minutes. Seek medical attention. Inhalation: Quickly leave the scene and move to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, administer oxygen. If breathing stops, immediately perform artificial respiration. Seek medical attention. Ingestion: Rinse mouth with water and drink milk or egg whites. Seek medical attention. Firefighting measures: Extinguishing method: This product is non flammable. Firefighters must wear gas masks and full body firefighting suits, and extinguish fires in the upwind direction. Spray water to cool the container, and if possible, move the container from the fire scene to an open area. Leakage handling: Emergency handling: Quickly evacuate personnel from the contaminated area to a safe zone, isolate them, and strictly restrict access. It is recommended that emergency responders wear self-contained positive pressure respirators and protective clothing. Cut off the leakage source as much as possible. Prevent the flow into restricted spaces such as sewers and drainage ditches. Minor leakage: Absorb or absorb with sand or other non combustible materials. It can also be brushed with lotion made of incombustible dispersant, and the washing solution is diluted and discharged into the wastewater system. Massive leakage: Construct embankments or dig pits to contain it. Cover with foam to reduce steam disaster. Transfer to a tanker or dedicated collector using a pump, and recycle or transport to a waste disposal site for disposal.
It is mainly used in the manufacturing of pharmaceutical intermediates, plastic additives, polyamides, and can also be used in fields such as printing and dyeing, electroplating, leather making, pesticides, synthetic resins, etc.
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