1.Overview of Triethylaluminum
The chemical properties of Triethylaluminum are active, flammable and explosive, and this kind of dangerous goods has always been a very distressed problem for the fire industry at home and abroad. Due to the special properties of the protected material, the fire extinguishing agent applied to such first-level spontaneous combustion items is very limited, and traditionally can only be covered or absorbed by non-combustible materials such as dry sand or stone powder, which is slow and inefficient, but also because of the large fire risk and inconvenient access to personnel, people often face such fires and have no choice. In recent years, the fire industry began to use dry powder for fire protection, so that this kind of fire extinguishing technology has made certain progress, because the protected object in the air is burning, water is explosive characteristics of the fire extinguishing agent has formed a special requirement, to deal with such fire extinguishing agent is currently limited to dry powder fire extinguishing agent.
At present, some domestic chemical enterprises in the process of production and storage of petrochemical products, fire safety has been an important work of lasting concern, and a lot of manpower and material resources are invested every year to ensure the safety of oil and chemical raw materials reserve. Foreign fire research on Tryethyl aluminum earlier, the United States, Germany, Israel and other countries have special dry powder to extinguish such fires, the fire extinguishing agent price is expensive coupled with equipment, engineering design and other high costs so that most enterprises are prohibited, Wuhan Yushen Fire Protection Co., Ltd. developed a new alkyl aluminum fire extinguishing agent, according to the national authority testing agency experts identified, It has unique advantages in extinguishing Triethylaluminum fires.
2.Characteristics of triethylaluminum
Triethylaluminum is a metal-organic compound formed by the combination of three ethyl alkyl groups and one aluminum atom. The molecular formula is 3Ai and the molecular weight is 114.17. At room temperature, it is a colorless transparent liquid with a strong musty odor. Melting point :-52.5°C, boiling point :194°, steam pressure 0.53Kpa/83°C, flash point < -52°C, ignition temperature < -52°, stability: It is stable and safe in nitrogen gas below 120°, soluble in benzene and alkane, when the concentration ofTriethylaluminum is less than 15%, no ignition, forbidden compounds: air, water, active hydrogen compounds, halogen or halogen compounds, carbon dioxide, etc., to avoid contact conditions: high temperature above 120°C, air. Its chemical properties are active, violent reaction with oxygen, spontaneous combustion in the air, water explosion decomposition into aluminum hydroxide and ethane, with acids, halogens, alcohols, amines contact violent reaction, have a burning effect on the human body, poor thermal stability, mainly used for organic synthesis is also used as rocket fuel, the first stage spontaneous combustion items in the air smoke, can occur spontaneous combustion. Sensitive to moisture and trace oxygen, easy to cause explosion, has a strong stimulation and corrosion effect on the human body, mainly damage the respiratory tract and eye conjunctiva, high concentration inhalation can cause pulmonary edema. Inhaling its fumes can cause smoke heat. Skin contact can cause burns, causing congestion, edema and dehydration, severe pain.
3.The application of Triethylaluminum
At present, Triethylaluminum is the most widely used organic synthesis in the chemical industry, such as the activator of polypropylene plastics and other products, due to different uses, its purity is not the same, the larger chemical enterprises in China are using Triethylaluminum, with Triethylaluminum storage tanks and devices, Triethylaluminum is usually nitrogen double tank protection storage, nitrogen pressurized transport to process equipment in production and use. Its pressure is generally not more than 0.2Mpa, the production shutdown is restored to the no-pressure state, the sealing requirements of the storage tank and pipeline are very good, to ensure that there is no leakage. Secondly, the staff who contact the Triethylaluminum storage tank and configuration system must be professionally trained and operated in strict accordance with the procedures. Install highly effective alkyl aluminum fire extinguishing agents in Triethylaluminum storage tanks and configuration systems for protection in case of emergency.
Article from M&J International Trading Co., Ltd
