Is adipic acid a hazardous substance

Is adipic acid a hazardous material? According to the relevant provisions of the Catalogue of Hazardous Chemicals, the determination of whether a substance is a hazardous material requires consideration of its various hazardous characteristic indicators. Adipic acid has a high flash point, generally around 196 ℃. From the perspective of flammability, it is relatively less likely to ignite and cause fire hazards, which to some extent indicates that it is not a typical flammable hazardous material.
From the perspective of toxicology data, the acute toxicity data of adipic acid shows that its oral lethal dose 50 (LD50) value for rats is relatively large, which means that under normal exposure conditions, the possibility of acute poisoning death to organisms is low, indicating that it is not a highly toxic hazardous material. According to the relevant chemical hazard classification standards, adipic acid has relatively stable chemical properties when in contact with common substances such as water and air. It does not rapidly undergo violent chemical reactions, release large amounts of energy, or produce toxic and harmful gases, and does not have typical reactive hazardous material characteristics. In the field of transportation, according to transportation standards and specifications such as the "Classification and Numbering of Dangerous Goods", the packaging, labeling, and other requirements for adipic acid are not as strict as some clear dangerous goods, which indirectly reflects that it is not classified as a high-risk substance during transportation. According to relevant literature on safety production in the chemical industry, as long as general storage conditions are followed during the storage of adipic acid, such as avoiding moisture, high temperature, etc., it will not cause serious safety accidents due to improper storage like some hazardous chemicals. Therefore, from the perspective of storage, its danger is not high.
From the perspective of environmental risk assessment, there are relevant studies on the degradation of adipic acid in the environment. It can be gradually degraded by microorganisms and other processes in the natural environment, and will not accumulate in large quantities in the environment, causing persistent and serious ecological hazards. Therefore, it does not belong to hazardous materials that pose great harm to the environment. According to occupational health and safety standards, in workplaces where adipic acid is normally produced and used, as long as basic protective measures are taken, such as wearing ordinary protective gloves, masks, etc., operators who come into contact with adipic acid will not have serious occupational health hazards. This indicates that it is not an extremely dangerous substance in terms of occupational contact. From the perspective of chemical reactivity, adipic acid reacts relatively mildly under the action of common chemical reagents, and does not immediately trigger strong chemical reactions like some active hazardous chemicals, leading to serious consequences such as explosions. Therefore, it is judged that it is not a hazardous material from this perspective. Studying the physical properties of adipic acid, its melting point is about 152 ℃, boiling point is about 337.5 ℃, and it is in a stable solid state at room temperature and pressure. This physical state determines that it is not prone to accidental physical changes and hazards under normal conditions, and does not belong to hazardous materials with high physical hazards.
Conduct a comprehensive evaluation of various parameters of adipic acid based on the safety assessment system of chemical products. Taking into account various factors such as chemical stability, potential impact on human body and environment, etc., adipic acid does not meet the strict standards defined as a hazardous material. Therefore, in general, adipic acid is not considered a hazardous material.