Tert-butyl peroxypivalate (TAPV) 29240-17-3

Tert-Amyl Peroxypivalate
Trade Name: Initiator TAPV
English Name: Tert-Amyl Peroxypivalate
Chemical Name: Tert-Amyl Peroxypivalate
Structural Formula:
Molecular Formula: C10H20O3
Molecular Weight: 188.3
Theoretical Active Oxygen Content: 8.5%
CAS: 29240-17-3
UN No. 3113
Class: 5.2
Class C liquid organic peroxide; requires temperature-controlled transport.
Properties: This product is a colorless, transparent, oily liquid that is insoluble in water but soluble in most organic solvents, with a freezing point below -23°C. Viscosity (-10°C): 2.1 mPa·s. This product can be formulated using various solvents, such as isododecane or
odorless mineral oil (OMS).
Major decomposition products: tert-amyl alcohol, methane, isobutane, acetone, methyl ethyl ketone, CO₂, etc.
Safety Parameters:
Half-life:
0.1 hour: 91°C
1 hour: 72°C
10 hours: 55°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 25°C
Critical Temperature (Tem): 15°C
Control Temperature (Tc): 10°C
Storage Temperature (Tsmax): --/-10°C
Activation Energy E (kJ/mol): 127.76
Technical Specifications:
Appearance: Colorless, transparent liquid
Color: 20 APHA
Content: 75.0 ± 1% min
TAHP: 1000 mg/kg max
Inorganic and organic hydrolyzable chlorides: 150 mg/kg max
Applications:
1. This product is a highly effective initiator for the high-pressure tubular or batch polymerization of ethylene.
2. For vinyl chloride polymerization: This product is suitable for vinyl chloride suspension polymerization processes at temperatures between 50–70 °C.
3. This product can be used as an initiator for the suspension polymerization of acrylates and methacrylates. It can also be used in the solution and non-aqueous dispersion polymerization of acrylates for the manufacture of coatings.
4. This product is also an important initiator for ethylene vinyl acetate (EVA).
5. It serves as a medium-temperature curing agent for unsaturated polyesters, with a curing temperature of 80–100°C, and is suitable for hot-press molding processes.
6. When added to oils, this product significantly improves their quality.
Packaging and Shipping:
Our factory’s standard packaging is 20-kilogram polyethylene bags. We can also supply packaging sizes according to customer requirements; customers may specify their needs when placing an order.
Storage Precautions:
1. Store in a cool, well-ventilated area at a temperature not exceeding -10°C.
2. Keep away from sources of ignition and heat. Store separately from acids, reducing agents, flammable materials, combustible materials, and other reducing agents.
3. Lighting and ventilation facilities in the storage area must be explosion-proof, and switches should be located outdoors.
4. Handle with care during transportation to prevent damage to packaging and containers. Avoid impact and vibration. Wear appropriate personal protective equipment during repackaging and handling operations.
5. Customers are requested to carefully read our factory’s “Material Safety Data Sheet (MSDS)” when storing, transporting, and using this product.
Product Shelf Life:
When stored and transported in strict accordance with the manufacturer’s instructions, product quality is guaranteed for three months.
Fire Protection:
1. This product may decompose violently when exposed to heat, causing a fierce fire. Small fires involving a small amount of the product should be extinguished immediately using a foam or dry powder fire extinguisher.
2. In the event of a large fire, evacuate immediately to a safe distance and use a water hose to extinguish the flames; notify the fire department for further handling.