[Chemical Knowledge]：Specification for storage and transportation of DAA

In the field of chemical production raw materials, DAA (diacetic acid amine) is a common organic compound, widely used in pesticides, pharmaceuticals, dyes and other industries. Due to its corrosive and toxic properties, it is necessary to strictly comply with safety regulations during storage and transportation to ensure the safety of personnel and the environment. This paper will detail the safe storage and transportation specification of DAA.

1. the physical and chemical properties of DAA

DAA is a colorless transparent liquid with a pungent odor. It is soluble in water, ethanol and ether and other organic solvents, with strong corrosive. DAA has a melting point of -28°C, a boiling point of 227°C and a flash point of 110°C.

the risk of 2. DAA

DAA to the eyes, skin and respiratory tract irritation, can cause chemical pneumonia and pulmonary edema. Prolonged exposure to high concentrations of DAA vapor can cause neurological damage. In addition, DAA is also flammable, in case of open flame, high heat or oxidant contact, there is a risk of combustion and explosion.

3. DAA safety storage specification

1. The storage place should choose a cool, ventilated and dry place, away from fire and heat sources.
2. The storage container should be made of corrosion-resistant materials, such as stainless steel or glass fiber reinforced plastic.
3. The storage area shall be provided with leakage emergency treatment equipment and suitable protective equipment.
4. During storage, the container and its seal should be checked regularly to ensure a good seal and prevent leakage.

4. DAA safety transportation specifications

1. Before transportation, check whether the packaging container is in good condition to prevent leakage.
2. During transportation, the container shall be sealed to avoid mixing with oxidants, acids and other substances.
3. Transportation vehicles shall be provided with corresponding safety measures such as fire prevention, explosion prevention and leakage prevention.
4. During transportation, high temperature and open fire should be avoided to prevent combustion and explosion.

5. DAA leakage emergency treatment

1. If leakage is found, the operation should be stopped immediately, and the personnel in the leakage pollution area should be evacuated to the safety area quickly, and the isolation should be carried out, and the access should be strictly restricted.
2. 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.
3. Prevent inflow into restricted spaces such as sewers and flood discharge ditches.
4. small amount of leakage: with sand or other non combustible material adsorption or absorption. Can also be washed with a lot of water, wash water diluted into the waste water system.
5. Massive leakage: build embankments or dig pits to accommodate. Cover with foam to reduce steam disasters. Spray water or foam to cool and dilute steam, protect site personnel. Transfer to tank truck or special collector with explosion-proof pump, recycle or transport to waste treatment site for disposal.

6. DAA operation disposal and storage

1. operation precautions: closed operation, provide sufficient local exhaust. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear self-priming filtering gas mask (half mask), chemical safety goggles, anti-poison penetration overalls and rubber oil-resistant gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent vapor leakage into the workplace air. Avoid contact with oxidants and acids. Handle lightly to prevent damage to packaging and containers. Equipped with corresponding types and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances.
2. storage precautions: stored in a cool, ventilated warehouse. Keep away from fire and heat source. The temperature of the warehouse should not exceed 37 ℃. Keep container sealed. It should be stored separately from oxidants and acids, and mixed storage should not be allowed. Explosion-proof lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.

In short, in order to ensure the safety of DAA during storage and transportation, relevant safety regulations must be strictly observed, and effective protective measures must be taken to reduce potential risks. At the same time, strengthen the safety training and education of employees, improve safety awareness, and ensure the safety and stability of chemical production raw materials.