What are the characteristics and uses of di-tert-butyl peroxide?

Di-tert-butyl peroxide (di-tert-butyl peroxide), also known as di-tert-butyl peroxide, initiator a, vulcanizing agent dTBP, is a colorless to slightly yellow transparent liquid, insoluble in water, and compatible with benzene, toluene, Mix with organic solvents such as acetone. Strong oxidizing agent, flammable, stable at room temperature and insensitive to impact.


1. Function and application of di-tert-butyl peroxide


1. Used as cross-linking agent for unsaturated polyester and silicone rubber, and also used as polymerization initiator. The theoretical active oxygen content is 10.94%, the activation energy is 146.9kJ/mol, and the half-life is 218h (100℃), 34h (115℃), and 0.15h (130℃). This product will explode if it comes in contact with reducing agents or is impacted. It has a flash point of 18°C and is flammable. Its vapor mixes with air to form an explosive mixture. Irritating to eyes, skin and respiratory tract.


2. Widely used as cross-linking agent, monomer polymerization initiator, polypropylene modifier, rubber curing agent, etc. for unsaturated polyester and silicone rubber.


2. Storage mode


Storage precautions: Store in a cool and ventilated warehouse. Keep away from fire and heat sources. Avoid direct sunlight. The storage temperature should not exceed 30℃. Keep the container closed. They should be stored separately from reducing agents and bases and should not be mixed. Use explosion-proof lighting and ventilation. It is prohibited to use mechanical equipment and tools that are prone to sparks. Storage areas should be equipped with emergency release equipment and suitable materials. Vibration, shock and friction are prohibited.


3. Precautions when using di-tert-butyl peroxide


1. Health hazards


Irritating to eyes, skin, and respiratory tract.


2. First aid


Skin Contact: Remove and isolate contaminated clothing and shoes. Wipe material off skin immediately. Note that the patient is warm and quiet. Ensure that medical personnel understand the personal protection knowledge related to this substance and pay attention to self-protection.


Eye contact: If this material comes into contact with skin or eyes, flush immediately with water for at least 20 minutes.


Inhalation: Move the victim to fresh air and seek medical attention. If the patient stops breathing, give artificial respiration. If breathing is difficult, give oxygen.