LQ-MEKP Methyl ethyl ketone peroxide 1338-23-4, 131-11-3

Item	Content
Product Name	Initiator LQ-MEKP
Chemical Name	Methyl ethyl ketone peroxide
Molecular Formula	C₈H₁₈O₆
Molecular Weight	210.2
Theoretical Active Oxygen Content	9.8-10.0%
CAS No.	1338-23-4, 131-11-3
UN No.	3105
IMDG Classification	5.2 (Class 5.2 Organic Peroxide, Dangerous Goods Packaging)

Major Decomposition Products

Decomposition Product
CO₂ (Carbon Dioxide)
Water
Acetic acid
Formic acid
Propionic acid
Methyl ethyl ketone (MEK)

Safety Indicators

Half-Life	Temperature
0.1 hour	--
1 hour	--
10 hours	--

Thermal Stability Data

Thermal Stability Parameter	Temperature
Self-accelerating Decomposition Temperature (SADT)	60°C
Critical Temperature (Tem)	--
Recommended Storage Temperature (Ts max)	-10/25°C
Activation Energy (E)	--

Applications

Application	Details
Curing Agent	This product is widely used as a curing agent in unsaturated polyester resins, primarily for curing at room temperature and moderate temperatures. It is typically combined with cobalt-based accelerators.

Packaging and Transportation

Item	Details
Standard Packaging	20 kg polyethylene packaging (net weight), custom packaging available based on user requirements.
Transport Regulations	Conforms to IMDG 5.2, UN No. 3105 (Organic Peroxide, Dangerous Goods Packaging).

Shelf Life

Shelf Life (Storage Conditions)	Details
Shelf Life	Product quality guaranteed for 3 months if stored according to manufacturer instructions.

Storage Instructions

Precaution	Description
Storage Temperature	Store at temperatures between -10°C and 25°C.
Storage Environment	Keep packaging sealed and in a well-ventilated area. Avoid exposure to reducing agents, acids, alkalis, and flammable or combustible substances.

Fire Protection

Fire Protection	Description
Small Fire Handling	Use foam or dry powder extinguishers.
Large Fire Handling	For large fires, evacuate to a safe distance and use water spray to suppress flames. Notify emergency services for handling.