Introduction to 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane
2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane, with the CAS registry number 13052-09-0, is an organic peroxide widely used as a initiator in polymerization reactions. Its molecular formula is C₂₄H₄₆O₆, and it is particularly valued in the production of polymers and plastics due to its efficiency in generating free radicals at elevated temperatures. This compound is part of the family of organic peroxides, which are critical in various chemical processes, including the manufacture of polyethylene, polystyrene, and other thermoplastic materials.
The importance of 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane in industrial chemistry cannot be overstated. It serves as a high-efficiency initiator that promotes polymerization under specific conditions, making it a preferred choice for manufacturers seeking to optimize production processes. In this article, we will delve into the chemical characteristics, applications, safety measures, and commercial aspects of this compound, providing a thorough resource for chemists, engineers, and procurement specialists.
Chemical and Physical Properties
2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane is a clear, colorless to pale yellow liquid with a characteristic odor. Its molecular weight is approximately 430.6 g/mol, and it has a density of about 0.90 g/cm³ at 20°C. The compound is sparingly soluble in water but miscible with most organic solvents, including alcohols, ethers, and hydrocarbons.
Key physical and chemical properties include:
- Boiling Point: Decomposes before boiling
- Melting Point: Not applicable (liquid at room temperature)
- Flash Point: >70°C (closed cup)
- Autoignition Temperature: Approximately 150°C
- Decomposition Temperature: Begins at 80°C, with rapid decomposition at higher temperatures
The peroxide bond (-O-O-) in the molecule is thermally unstable, which makes it effective as a free radical source. However, this also necessitates careful handling to prevent accidental decomposition. The compound is typically stabilized with additives such as phlegmatizers to reduce sensitivity during storage and transport.
Industrial Applications and Uses
2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane is primarily employed as a initiator in the polymerization of ethylene, styrene, and other monomers. Its half-life at specific temperatures (e.g., 10 hours at 70°C) makes it suitable for controlling reaction kinetics in both bulk and suspension polymerization processes.
- Polyethylene Production: In high-pressure polymerization reactors, this peroxide initiates the reaction to form low-density polyethylene (LDPE). It allows for precise control over molecular weight distribution and polymer properties.
- Polystyrene Synthesis: It is used in the production of expandable polystyrene (EPS) and general-purpose polystyrene (GPPS), where it ensures efficient initiation and consistent product quality.
- Copolymerization: The compound is also utilized in the manufacture of copolymers, such as ethylene-vinyl acetate (EVA) and acrylonitrile-butadiene-styrene (ABS), enhancing material characteristics like impact resistance and flexibility.
- Cross-Linking Agent: In the rubber and plastic industries, it serves as a cross-linking agent for silicone rubber and polyethylene, improving thermal and mechanical properties.
Other niche applications include its use in the curing of unsaturated polyester resins and as a modifier for organic synthesis in pharmaceutical and agrochemical industries.
Safety and Handling Guidelines
Due to its organic peroxide nature, 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane is classified as a hazardous substance. It is sensitive to heat, friction, and impact, and can decompose violently if contaminated or exposed to high temperatures. Key safety measures include:
- Personal Protective Equipment (PPE): Wear chemical-resistant gloves, safety goggles, and flame-retardant clothing when handling.
- Ventilation: Use in well-ventilated areas or under fume hoods to avoid inhalation of vapors.
- Avoid Contamination: Prevent contact with strong acids, bases, metals, or reducing agents, as they can catalyze decomposition.
- Emergency Procedures: In case of spill, absorb with inert material and dispose of as hazardous waste. For fire, use water spray, foam, or dry chemical extinguishers—do not use water jet.
The compound may cause skin and eye irritation, and prolonged exposure can lead to respiratory issues. Safety Data Sheets (SDS) should always be consulted prior to use.
Storage and Transportation Recommendations
Store 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane in a cool, well-ventilated area away from direct sunlight and heat sources. Ideal storage temperature is between 10°C and 25°C. Containers must be tightly sealed and made of materials compatible with organic peroxides (e.g., stainless steel or certain plastics).
For transportation, comply with regulations such as ADR, IATA, and IMDG for hazardous goods. The compound is typically assigned to Class 5.2 (Organic Peroxides) with specific packaging and labeling requirements.
Where to Buy 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane
Shandong Do Sender Chemicals Co.,Ltd.
FAQs about CAS 13052-09-0
Q: What is the shelf life of 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane?
A: When stored properly, its shelf life is typically 6-12 months. Regular stability testing is recommended.
Q: Can it be used in food-grade polymers?
A: Yes, but only if it is thoroughly removed during processing, as per regulatory guidelines.
Q: What are the alternatives to this initiator?
A: Other organic peroxides, such as dicumyl peroxide or benzoyl peroxide, may be used depending on the application.
Q: How is it disposed of?
A: Dispose of as hazardous waste through incineration or via licensed waste management services.
This article provides a comprehensive overview of 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane (CAS 13052-09-0), targeting keywords such as "buy 2,5-Dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane," "CAS 13052-09-0 properties," and "organic peroxide initiator" to enhance SEO performance. The content is structured with header tags, bullet points, and detailed explanations to improve readability and search engine ranking.