T-pentyl 2-ethylhexanoate peroxide (TAPEH) 686-31-7

tert-Amyl Peroxy-2-ethylhexanoate
Trade Name: Initiator TAPEH
English Name: tert-Amyl peroxy-2-ethylhexanoate
Chemical Name: tert-Amyl peroxy-2-ethylhexanoate
Chemical Structure:
Molecular Formula: C13H26O3
Molecular Weight: 230.3
Theoretical Active Oxygen Content: 6.95%
CAS: 686-31-7
UN No. 3115
Class: 5.2
Class D liquid organic peroxide; must be transported under temperature-controlled conditions. Transport by rail and air is prohibited.
Properties: This product is a colorless, transparent, oily liquid that is insoluble in water but soluble in most organic solvents. Its freezing point is below -230C. Viscosity (-10°C): 2.1 mPa·s. This product can be formulated with various solvents, such as isododecane or
odorless mineral oil (OMS).
Major decomposition products: tert-amyl alcohol, methane, ethane, 2-ethylhexanoic acid, n-heptane, acetone, methyl ethyl ketone, CO₂, etc.
Safety Parameters:
Half-life:
0.1 hour: 111°C
1 hour: 91°C
10 hours: 73°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 35°C
Critical Temperature (Tem): 25°C
Control Temperature (Tc): 20°C
Storage Temperature (Tsmax): -20/10°C
Activation Energy E (kJ/mol): 132.11
Technical Specifications:
Appearance: Colorless, transparent liquid
Color: 20 APHA
Content: 96% min
TAHP: 0.2% max
Inorganic and Organic Hydrolyzable Chlorides: 100 mg/kg max
Applications:
1. This product is a polymerization initiator for acrylate and methacrylate esters and is suitable for use in a variety of polymerization processes.
2. This product can be used to initiate the polymerization of styrene and acrylonitrile and is also an important initiator for ethylene vinyl acetate (EVA) copolymers.
3. It serves as a high-temperature curing agent for unsaturated polyesters, with a curing temperature of 120–160 °C, and is the preferred choice for the hot-press molding curing process of unsaturated polyesters (UP).
Packaging and Shipping:
Our 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, with switches located outdoors.
4. Handle with care to prevent damage to packaging and containers. Avoid impacts and vibrations. Wear appropriate personal protective equipment during repackaging and handling operations.
5. Customers are advised 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 Safety:
1. This product may decompose violently when exposed to heat, causing a sudden 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.