Triethyl phosphate (Triethyl phosphate)

Used as ethyl agent and raw material for preparing tetraethyl pyrophosphate.

It is slightly harmful to water and prevents undiluted or large amounts of products from contacting groundwater, watercourses or sewage systems. 1,? Hydrophobic parameter calculation reference value (XlogP):0.8 2,? Number of hydrogen bond donors: 0 3,? Number of hydrogen bond receptors: 4 4,? Number of rotatable chemical bonds: 6 5,? Topological molecule polar surface area (TPSA):44.8 6,? Number of heavy atoms: 11 product specifications appearance colorless transparent liquid relative density (20℃)? 0.976 -- 0.981 refractive index (n20D)1.423 -- 1.425 acidity (calculated by phosphoric acid)/% 0.01 moisture? Qualified? Triethyl phosphate (78-40-0) preparation method: cool the butyl alcohol and add phosphorus oxychloride, stir until the end of the reaction. Add water to wash, stand still to separate the water layer, and then neutralize it with sodium carbonate solution. After neutralization, the crude ester is distilled under reduced pressure to remove alcohol, then washed with water, then distilled under reduced pressure, and the low boiling matter is divided into finished products. ? Each ton of product consumes 1500kg of butyl alcohol and 770kg of phosphorus oxychloride. Dangerous characteristics: in case of open flame, high heat combustible. Heat decomposition releases toxic gases. Harmful combustion products: carbon dioxide, phosphorus oxide, carbon monoxide, phosphorus. Fire extinguishing method: firefighters must wear gas masks, wear fire suits of the whole body, and put out fire in the wind direction. Spray water to keep the fire container cool until the fire is put out. Move the container from the fire to the open place as much as possible. Spray the escaping liquid with water to dilute it into a non-combustible mixture and protect the firefighters with mist water. If the container in the fire has changed color or generated sound from the safety pressure relief device, it must be evacuated immediately. Extinguishing agent: water, dry powder, anti-soluble foam, foggy water, carbon dioxide, sand. Precautions: Close operation and strengthen ventilation. Operators must be specially trained and strictly abide by the operating procedures. Stay away from fire and heat sources, and smoking is strictly prohibited in the workplace. It is recommended that operators wear filter type antivirus mask (half mask), chemical safety protective glasses, anti-virus penetration overalls, and rubber oil-resistant gloves. Prevent steam leakage into the workplace air. Use explosion-proof ventilation system and equipment. Equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment. Avoid contact with oxidants and bases. Light loading and unloading should be carried to prevent the packaging and containers from being damaged. The empty container may contain harmful substances. Storage precautions: Store in a cool and ventilated warehouse. Keep away from fire and heat source. It should be stored separately with oxidant, alkali and edible chemicals, and should not be mixed. Equipped with corresponding varieties and quantities of fire fighting equipment. The storage area should be equipped with leakage emergency treatment equipment and appropriate containment materials.? Emergency treatment of leakage: 1. Cut off the fire source. 2. Quickly evacuate the personnel from the contaminated area to the safe area, isolate them, and strictly restrict access. 3. Prevent inflow into restricted spaces such as sewers and floodwater draining channel. 4. It is recommended that emergency personnel wear self-contained positive pressure respirator and anti-virus suit. Cut off the leakage source as much as possible. 5. Small leakage: mix sand, dry lime or soda ash. It can also be washed with plenty of water, diluted by washing water and put into the waste water system. 6. Large amount of leakage: build a levee or dig a pit for accommodation. Transfer to tank car or special collector by pump, recycle or transport to waste disposal site for disposal. Health hazards: After inhalation, ingestion or skin absorption, it may be harmful to the body. It has stimulating and local anesthetic effects.? Explosive danger: This product is flammable and toxic. First aid measures:? Skin contact: remove contaminated clothes and rinse with plenty of flowing water. Inhalation: leave the site to the fresh air. If you have difficulty breathing, give oxygen. See a doctor. Eating: drink enough warm water to induce vomiting. See a doctor. Eye contact: lift the eyelid and rinse with flowing water or normal saline. See a doctor. ? Contact control/individual protection: engineering control: the production process is closed and ventilation is strengthened. Eye protection: wear chemical safety protective glasses. When the concentration of respiratory system protection Air is high, filter type antivirus mask (half mask) should be worn. Air respirator/resuscitator is recommended for emergency rescue or escape. Hand Protection: Wear rubber oil-resistant gloves. Body Protection: wear anti-virus penetration work clothes. Other Protection: smoking, eating and drinking water are prohibited at the work site. After work, shower and dressing.