LQ-TAPA Tert-amyl peroxyacetate 690-83-5

Item	Content
Product Name	Initiator LQ-TAPA
Chemical Name	Tert-amyl peroxyacetate
Molecular Formula	C₇H₁₄O₃
Molecular Weight	146.20
Theoretical Active Oxygen Content	10.94%
CAS No.	690-83-5
UN No.	3107

Properties

Property	Description
Appearance	Colorless, transparent liquid
Solubility	Insoluble in water, soluble in most organic solvents
Density (20°C)	0.923 g/cm³
Refractive Index (20°C)	1.035
Decomposition Temperature	159°C
Major Decomposition Products	Tert-butanol, acetic acid, di-tert-butyl ether, methane, ethane

Safety Indicators

Half-Life	Temperature
0.1 hour	134°C
1 hour	114°C
10 hours	96°C

Thermal Stability Data	Temperature
Self-accelerating Decomposition Temperature (SADT)	60°C
Critical Temperature (Tem)	--
Control Temperature (Tc)	--
Storage Temperature (Tsmax)	--/30°C
Activation Energy (E)	152.16 KJ/mol

Applications

Application	Description
Polymerization Initiator (LDPE)	Excellent low-temperature initiator for LDPE, especially in tubular processes. Can be combined with other initiators like LQ-TBPV, LQ-TBPEH, or LQ-TBPB for enhanced polymerization.
Curing Agent for Thermoset Resins	Used as a high-temperature curing agent for unsaturated polyesters.
Polymerization Initiator (Styrene and Acrylates)	Initiator for the polymerization of styrene or styrene copolymers, as well as methyl methacrylate and vinyl acetate.

Packaging and Transport

Packaging	Description
Standard Packaging	Typically packaged in 20 kg polyethylene containers. Custom packaging available upon request.
Transport	Follows transportation regulations for organic peroxides (Class 5.2, UN 3107).

Storage Instructions

Precaution	Description
Storage Conditions	Store in a cool, ventilated area with a maximum temperature of 30°C. Keep away from acids, reducing agents, flammable materials, and other reactive substances.
Storage Facilities	Ensure proper ventilation, and use explosion-proof lighting and switches outdoors.
Handling Precautions	Handle carefully to avoid container damage. Prevent impact and vibration. Personal protective equipment should be used during repacking and handling.

Fire Protection

Precaution	Description
Small Fire Handling	For small fires, use foam or dry powder extinguishers immediately, followed by large amounts of water to prevent re-ignition.
Large Fire Handling	In case of large fires, evacuate to a safe distance and use water hoses for firefighting. Notify fire services for assistance.