Description of Ethyl Cyanoacetate
Ethyl cyanoacetate is a colorless to light yellow liquid with an aromatic odor. Its related properties and precautions are as follows:

1. Physical and chemical properties
1. ** Appearance and properties **: Colorless to light yellow liquid with an aromatic odor.
2. ** Melting point (℃)**： - 22.5
3. ** Boiling point (℃) **: 208~ 210
4. ** Relative density (water = 1) **: 1.06 (20 ℃)
5. ** Relative vapor density (air = 1) **: 4.04
6. ** Saturated Vapor Pressure (kPa) **: 0.13 (70.6 ℃)
7. ** Flash Point (℃) **: 110
8. ** Solubility **: Slightly soluble in water, miscible in ethanol, ether.

II. Overview of Hazards
1. ** Health Hazards **: Harmful to the body by inhalation, ingestion or skin absorption. Irritating to the eyes, skin, mucous membranes and upper respiratory tract.
2. ** Explosion Hazard **: This product is flammable and irritating.

III. First Aid Measures
1. ** Skin contact **: Remove contaminated clothing and rinse with running water.
2. ** Eye contact **: Lift the eyelids and rinse with running water or normal saline. Seek medical attention.
3. ** Inhalation **: Remove from the scene to a fresh place of air. If breathing difficulties, give oxygen. Seek medical attention.
4. ** Ingestion **: Drink enough warm water to induce vomiting. Seek medical attention.

4. Firefighting measures
1. ** Hazardous characteristics **: Combustible in case of open flames and hot topics. Decomposed by hot topics, releasing highly toxic smoke.
2. ** Hazardous Combustion Products **: Carbon Monoxide, Carbon Dioxide, Nitrogen Oxide, Hydrogen Cyanide.
3. ** Fire Extinguishing Method **: Firefighters must wear gas masks and full body fire suits to extinguish the fire in the upwind direction. Move the container from the fire site to an open place as much as possible. Spray water to keep the fire site container cool until the fire is over. If the container in the fire site has changed color or produces sound from the safety pressure relief device, it must be evacuated immediately. Extinguishing Agent: Mist water, foam, dry powder, carbon dioxide, sand.

5. Emergency treatment for leakage
1. ** Emergency treatment **: Quickly evacuate the personnel in the spill contaminated area to the safety area, and quarantine, strictly restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and anti-toxic clothing. Cut off the source of leakage as much as possible. Prevent inflow into restricted spaces such as sewers and drainage ditches.
2. ** Small amount of leakage **: Adsorption or absorption with sand or other non-combustible materials. It can also be rinsed with a large amount of water, diluted with washing water and placed into the wastewater system.
3. ** Large amount of leakage **: Construct a dike or dig a pit for containment. Transfer to a tanker or a special collector with a pump for recycling or transportation to a waste treatment site for disposal.


VI. Operational disposal and storage
1. ** Operational precautions **: Closed operation to provide adequate local exhaust. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter gas masks (half masks), chemical safety protective glasses, anti-poison infiltration work clothes, and rubber oil-resistant gloves. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent steam leakage into the air of the workplace. Avoid contact with oxidants, reducing agents, acids, and alkalis. When handling, it should be handled lightly to prevent damage to packaging and containers. Equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may remain harmful substances.
2. ** Storage precautions **: Store in a cool and ventilated warehouse. Keep away from fire and heat sources. Keep the container sealed. It should be stored separately from oxidizing agents, reducing agents, acids, and alkalis. Do not mix storage. Equipped with fire fighting equipment of the corresponding variety and quantity. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.

VII. Contact Control/Individual Protection
1. ** Engineering Control **: Close airtight to provide adequate local exhaust. Provide safety shower and eye washing equipment.
2. ** Respiratory System Protection **: When it is possible to come into contact with its vapors, a self-priming filter gas mask (half mask) should be worn. In case of emergency rescue or evacuation, it is recommended to wear an air respirator.
3. ** Eye Protection **: Wear chemical safety protective glasses.
4. ** BODY PROTECTION **: Wear anti-poison penetrating work clothes.
5. ** HAND PROTECTION **: Wear rubber oil-resistant gloves.
6. ** OTHER PROTECTION **: Smoking, eating and drinking water are prohibited at the work site. After work, wash thoroughly. Store clothes contaminated with poisons separately and set aside after washing. Pay attention to personal cleanliness and hygiene.

VIII. STABILITY AND REACTIVE ACTIVITY
1. ** STABILITY **: STABILITY.
2. ** PROTECTION **: Strong oxidant, strong reducing agent, strong acid, strong alkali.
3. ** Conditions to avoid contact **: Heat.
4. ** Hazards of polymerization **: No polymerization.
5. ** Decomposition products **: hydrogen cyanide, carbon monoxide, carbon dioxide, nitrogen oxides.

IX. Toxicological data
1. ** Acute toxicity **: LD50:270mg/kg (rat oral); 210mg/kg (mouse oral).

X. Waste disposal
1. ** Waste disposal method **: Relevant national and local regulations should be consulted before disposal. It is recommended to dispose by incineration. The nitrogen oxides discharged from the incinerator are removed through the scrubber.

XI. Transportation information
1. ** Dangerous Goods No. **: 61645
2. ** UN No. **: 2666
3. ** Packing Category **: O53
4. ** Packing Method **: Small opening steel drum; Threaded mouth glass bottle, iron cap pressure mouth glass bottle, plastic bottle or metal drum (can) outside the ordinary wooden box; Threaded mouth glass bottle, plastic bottle or tin-plated sheet steel drum (can) outside full of baseplate flower box, fiberboard box or plywood box.
5. ** Transportation Precautions **: 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 forbidden to mix with acids, oxidants, food and food additives. During transportation, the transportation vehicle should be equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. During transportation, it should be protected from exposure to the sun, rain and high temperature. Road transportation should follow the prescribed route and do not stop in residential areas and densely populated areas.