LQ-TBPI Tert-Butyl peroxyisobutyrate 109-13-7

Item	Content
Product Name	Initiator LQ-TBPI
Chemical Name	Tert-Butyl peroxyisobutyrate
Molecular Formula	C₈H₁₆O₃
Molecular Weight	160.2
Pure Peroxide Active Oxygen Content	9.99%
CAS No.	109-13-7
Einecs	203-650-5
UN No.	3115
Level	5.2
Classification	D-type liquid organic peroxide, temperature-controlled transport, classified as a Class 5.2 hazardous material

Properties

Property	Description
Appearance	Transparent liquid
Main Decomposition Products	CO₂, tert-butanol, propane, propylene, 2-isopropyl-2-methylpropane

Safety Indicators

Half-Life	Temperature
0.1 hour	118℃
1 hour	98℃
10 hours	79℃

Thermal Stability Data	Temperature
Self-accelerating Decomposition Temperature (SADT)	30℃
Critical Temperature (Tem)	20℃
Control Temperature (Tc)	15℃
Storage Temperature (Tsmax/TSmin)	--/10℃

Applications

Application	Description
Ethylene Polymerization	LQ-TBPI is an efficient initiator for LDPE tubular or batch processes, with a polymerization temperature range of 160-250°C.
Styrene Polymerization	Suitable for styrene polymerization, with a polymerization temperature range of 85-105°C, mainly used for styrene copolymerization and acrylic/methacrylic acid polymerization. For acrylic and methacrylic acid, the polymerization temperature is 80-160°C, suitable for bulk and aqueous suspension polymerization.

Packaging and Transport

Packaging	Description
Standard Packaging	20 kg PE plastic barrels, with custom packaging available upon request.
Transport	LQ-TBPI is a Class 5.2 liquid organic peroxide, requiring temperature-controlled transport.

Storage Instructions

Precaution	Description
Storage Conditions	Keep packaging sealed and in a well-ventilated area, with a maximum storage temperature of 25°C. Avoid contact with reducing agents (such as amines), acids, bases, and heavy metal compounds (such as promoters and metal soaps).
Storage Stability	The product will meet technical standards for up to 3 months when stored according to the manufacturer’s guidelines.

Fire Protection

Precaution	Description
Small Fire Handling	Use dry powder or CO₂ extinguishers for small fires. Apply water to prevent re-ignition.
Large Fire Handling	For larger fires, use a large volume of water at a safe distance to extinguish.