MSDS for hazardous chemicals - methyl acrylate
MSDS for hazardous chemicals: Methyl acrylateIdentification
Chinese name
Methyl acrylate (inhibited)
English name
methyl acrylate
CAS number
96-33-3
Flammable liquid with flash point in hazard category 3.2
Dangerous goods number
32146
UN number
1919
Health hazards
Inhalation, ingestion, transdermal absorption
Health hazards: Exposure to high concentrations can cause symptoms such as drooling, eye and respiratory irritation, and in severe cases, white lips, difficulty breathing, spasms, and death due to pulmonary edema. Those who accidentally ingest acute poisoning may experience symptoms of oral, gastric, and esophageal corrosion, accompanied by collapse, difficulty breathing, and agitation.
Long term exposure can cause skin damage and can also lead to lung, liver, and kidney lesions.
Emergency measures: In case of skin contact, immediately remove contaminated clothing and thoroughly rinse the skin with soap and water. Seek medical attention.
Immediately lift the eyelids upon eye contact and thoroughly rinse with plenty of flowing water or saline solution for at least 15 minutes. Seek medical attention.
Inhale
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.
Dangerous characteristics and fire extinguishing methods
Dangerous characteristics
Flammable, its vapor can form an explosive mixture with air, which can cause combustion and explosion when exposed to open flames and high heat energy.
. Can react strongly with oxidants. Easy to self polymerize, the polymerization reaction intensifies rapidly with increasing temperature. Its vapor is heavier than air and can spread to a considerable distance at lower levels. It will ignite and reignite when exposed to a source of fire.
Firefighters must wear full body fire and gas protective clothing and extinguish the fire in the upwind direction. In case of a large fire, firefighters must operate in a protected shelter. Extinguishing agent: insoluble foam, carbon dioxide, dry powder, sand. Using water to extinguish the fire is ineffective, but it can be used to keep the container cool in the fire scene.
Emergency response to leakage: Quickly evacuate personnel from the contaminated area to a safe zone, isolate them, and strictly restrict their entry and exit. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure respirators and anti-static work clothes. Cut off the leakage source as much as possible. Prevent the flow into restricted spaces such as sewers and drainage ditches. Minor leakage: Absorb with activated carbon or other inert materials. You can also rinse with a large amount of water, dilute the washing water, and put it into the wastewater system. Massive leakage: Construct embankments or dig pits to contain it. Cover with foam to reduce steam disaster. Spray water or foam to cool and dilute steam and protect on-site personnel. Transfer to a tanker or dedicated collector using an explosion-proof pump, and recycle or transport to a waste disposal site for disposal.
Precautions for operation and disposal: Closed operation and comprehensive ventilation. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear self-priming filter type gas masks (half masks), chemical safety goggles, anti-static work clothes, and rubber oil resistant gloves. Keep away from sources of fire and heat, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent steam leakage into the workplace air. Avoid contact with oxidants, acids, and bases. During filling, the flow rate should be controlled and there should be a grounding device to prevent static electricity accumulation. Handle with care during transportation to prevent damage to packaging and containers. Equip with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. Empty containers may contain residual harmful substances.
Storage precautions
Usually, products are added with polymerization inhibitors. Store in a cool and ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 26 ℃. The packaging requires sealing and must not come into contact with air. It should be stored separately from oxidants, acids, and bases, and avoid mixing storage. Not suitable for large-scale storage or long-term storage. Adopt explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generating sparks. The storage area should be equipped with emergency response equipment for leaks and suitable containment materials.
Protective measures
Contact limit: China MAC (mg/m3): 20
Monitoring method: Gas chromatography
Engineering control: The production process is enclosed and fully ventilated. Provide safety shower and eye wash equipment.
When the concentration in the respiratory system exceeds the standard, a self-priming filter type gas mask (half mask) should be worn. If necessary, a self-contained breathing apparatus should be worn for protection.
Wear chemical safety goggles for eye protection.
Wear anti-static work clothes for body protection.
Wear rubber oil resistant gloves for hand protection.
Smoking is strictly prohibited at the work site. After work, take a shower and change clothes. Pay attention to personal hygiene and cleanliness.
Physical and chemical properties: Appearance and characteristics: Colorless and transparent liquid with a garlic like odor.
Molecular melting point (℃)
C4H6O2-76.5
Relative molecular weight boiling point (℃)
86.09 80.5
Flash point (℃)
-3
Ignition temperature (℃) 468
Explosion upper limit% (V/V)
25.0
Explosion lower limit% (V/V) 2.8
Combustion heat (kJ/mol)
2102
Critical temperature (℃) 263
Critical pressure (MPa)
4.3
Octanol/water partition coefficient 0.8
Relative density (air=1) 0.95
Relative density (water=1) 0.95
Slightly soluble in water.
.
The main use is as the second monomer and adhesive for polyacrylonitrile fibers.
Stability and reactivity
Stability and stability
Aggregation hazards
Combustion products carbon monoxide and carbon dioxide.
Taboo substances include acids, bases, and strong oxidants.
Avoid contact with heat and air.
Toxicological data
LD50: 277 mg/kg (oral administration in rats); 1243 mg/kg (rabbit transdermal); LC50：4752mg/m3， 4 hours (inhaled by rats). Disposal methods: Before disposal, relevant national and local regulations should be consulted. Suggest using incineration method for disposal.
Packaging method
Small opening steel drum; Ordinary wooden box outside the ampoule bottle; Screw mouth glass bottles, iron cap pressed mouth glass bottles, plastic bottles, or metal drums (cans) with ordinary wooden boxes.
Transportation precautions: During transportation, the transport vehicle should be equipped with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. It is best to transport in the morning and evening during summer. The tank truck used for transportation should have a grounding chain, and a perforated partition can be installed inside the tank to reduce static electricity generated by vibration. It is strictly prohibited to mix and transport with oxidants, acids, alkalis, edible chemicals, etc. During transportation, it should be protected from direct sunlight, rain, and high temperatures. When stopping midway, one should stay away from sources of fire, heat, and high temperature areas. The exhaust pipe of the vehicle carrying the item must be equipped with a flame retardant device, and the use of mechanical equipment and tools that are prone to generating sparks for loading and unloading is prohibited. When transporting by road, follow the prescribed route and do not stay in residential or densely populated areas. It is prohibited to slip during railway transportation. It is strictly prohibited to use wooden boats or cement boats for bulk transportation.
