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[Chemical Knowledge]：Specification for storage and transport of DMF(N,N-dimethylformamide)

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DMF(N,N-dimethylformamide) is a common organic solvent in the field of chemical production raw materials. Due to its unique chemical properties, it is widely used in synthesis, extraction, purification and other processes. However, due to its toxicity and flammability, DMF requires strict compliance with safety regulations during storage and transportation. This article will detail the safe storage and transportation specifications for DMF.

1. the physical and chemical properties of DMF

DMF is a colorless and transparent liquid with a strong pungent odor. Its molecular formula is C3H7NO, boiling point is 152.8 ℃, flash point is 57.78 ℃, ignition temperature is 445 ℃, density is 0.944g/cm3. DMF is miscible with water, alcohols, ethers, esters, ketones, unsaturated hydrocarbons, aromatic hydrocarbons, etc., but not with saturated hydrocarbons such as gasoline, hexane, cyclohexane, etc.

2. the toxicity of DMF

DMF is highly toxic to humans and can be absorbed through the respiratory tract, skin and digestive tract. The symptoms of acute poisoning include headache, dizziness, nausea, vomiting, palpitations, chest tightness, fatigue, etc. In severe cases, symptoms such as coma and convulsions may occur. Long-term exposure to DMF can cause damage to the nervous system, digestive system, respiratory system and other systems.

3. DMF safety storage specification

1. storage place should choose a cool, ventilated, dry place, away from fire and heat sources.
2. The storage container shall be a special container with good sealing performance to avoid leakage and volatilization.
3. The storage area shall be provided with obvious safety signs and warning signs, and smoking and open fire shall be prohibited.
4. During the storage process, the sealing and integrity of the container should be checked regularly, and the leakage should be handled in time.

4. DMF safety transportation specification

1. Before transportation, the integrity and tightness of the transportation vehicle should be checked to ensure that there will be no leakage accident during transportation.
2. During transportation, it is necessary to keep running smoothly, avoid violent vibration and collision, and prevent container damage and leakage.
3. Transport vehicles shall be equipped with corresponding fire-fighting equipment and leakage emergency treatment equipment to deal with emergencies.
4. Relevant road traffic safety regulations shall be observed during transportation to ensure transportation safety.

5. DMF Leakage Emergency Treatment Specification

1. When DMF leakage is found, the operation should be stopped immediately, and the leakage source should be closed to prevent the leakage from spreading.
2. Use special absorption materials to absorb and treat the leakage to prevent the leakage from entering the sewer or drain.
3. For the case of a large number of leaks, cofferdams or trenches should be set up and covered with foam to reduce steam disasters.
4. Clean and disinfect the leakage area after treatment to ensure that it will not pollute the environment.

In summary, DMF is a common chemical production raw material, and its toxicity and flammability impose strict safety requirements on storage and transportation processes. In order to ensure the safety of personnel and environment, we must strictly abide by the relevant safety regulations and take effective measures to prevent accidents.

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