[Chemical Knowledge]：Specification for storage and transport of methyl acetate

Standard
for Safe Storage and Transportation of Methyl Acetate
Methyl acetate is an important organic chemical raw material, which is widely used in medicine, pesticide, spice and other fields. However, due to its flammable and toxic properties, the storage and transportation of methyl acetate must strictly comply with relevant regulations to ensure safety. This article will detail the safe storage and transportation specifications for methyl acetate.

1. the physicochemical properties of methyl acetate

methyl acetate is a colorless transparent liquid with pungent odor. Relative density 0.93, melting point -98 ℃, boiling point 57.2 ℃, refractive index 1.3614, flash point -10 ℃ (closed cup), ignition point 400 ℃, viscosity 0.45mPa · s. Insoluble in water, miscible in ethanol, ether and other organic solvents. Flammable, in case of high heat and open flame, there is a danger of burning. Contact with oxidizing agents will react violently. Its vapor is heavier than air and can spread to a considerable distance at a lower level, causing backburning in case of an open flame.

2. the toxicity and health hazards of methyl acetate

methyl acetate has irritating effects on eyes, nose and throat. High concentration inhalation can cause progressive anesthesia, acute pulmonary edema, liver and kidney damage. Continued large amounts of inhalation can cause respiratory paralysis. Mistook can produce nausea, vomiting, abdominal pain, diarrhea and so on. There is a sensitization effect, bleeding gums due to vascular nerve disorders; can cause eczema-like dermatitis. Chronic effects: long-term exposure to this product can sometimes cause corneal opacity, secondary anemia, leukocytosis, etc.

3. the safety of methyl acetate storage specification

1. stored in a cool, ventilated special warehouse. Keep away from fire and heat source. The warehouse temperature should not exceed 30 ℃. Keep container sealed. Should be stored separately from the oxidant, do not mix storage. 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.
2. It is strictly prohibited to mix with oxidants, acids, alkali metals, edible chemicals, etc. During transportation, it shall be protected from sun exposure, rain and high temperature. Stay away from kindling and heat sources during stopover. The vehicles shall be thoroughly cleaned after transportation.

4. of methyl acetate transportation specifications

1. Before transportation, check whether the packaging container is complete and sealed. During transportation, ensure that the container does not leak, collapse, fall, or damage. It is strictly prohibited to mix with acids, oxidants, food and food additives. During transportation, the transportation vehicles shall be equipped with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment. During transportation, it shall be protected from sun exposure, rain and high temperature. Road transportation shall be carried out according to the prescribed route, and do not stop in residential areas and densely populated areas.
2. It is strictly prohibited to transport in bulk by wooden ships and cement ships. It is forbidden to slip away during railway transportation.
Emergency Treatment
for
5. Leakage
evacuate personnel from the contaminated area to the safety zone, isolate them, and strictly restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and anti-static overalls. 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: adsorption or absorption with sand or other non-combustible materials. Can also be washed with a lot of water, wash water diluted into the waste water system. Large leakage: build embankments or dig pits to contain. Cover with foam to reduce steam disasters. Transfer to tank truck or special collector with explosion-proof pump, recycle or transport to waste treatment site for disposal.

6. protective measures

respiratory system protection: when the concentration in the air exceeds the standard, you should wear a self-priming filter gas mask (half mask). In case of emergency rescue or evacuation, it is recommended to wear air respirator.
eye protection: wear chemical safety goggles.
Body protection: wear anti-static overalls.
hand protection: wear latex gloves.
Other protection: Smoking is strictly prohibited at the work site. After work, shower and change clothes. Pay attention to personal hygiene.

In short, the storage and transportation of methyl acetate requires strict compliance with relevant regulations to ensure safety.