Description

Acetyl-sec-Heptylsulphonyl Peroxide is a specialized organic peroxide initiator used in polymerization processes. This compound is valued for its ability to generate free radicals at moderate temperatures, making it a critical component for controlling polymer chain growth and molecular weight. It is primarily utilized by manufacturers in the plastics, rubber, and specialty polymer industries to produce materials with specific mechanical and thermal properties.

Application

• Polymerization Initiator: Used as a free-radical initiator for the polymerization of vinyl monomers such as styrene, vinyl chloride, and acrylates.
• Cross-linking Agent: Employed in the cross-linking of unsaturated polyester resins and certain elastomers to enhance their structural integrity.
• Curing Agent for Resins: Facilitates the curing process for fiberglass-reinforced plastics (FRP) and composite materials.
• Synthesis of Specialty Polymers: A key component in the production of high-performance polymers, including impact-resistant plastics and adhesives.
• Rubber Vulcanization: Acts as a co-agent in the vulcanization process for synthetic rubbers to improve heat resistance and durability.
• Modifier for Polymer Properties: Used to control molecular weight distribution and branching in polymer chains to achieve desired material characteristics.

Basic Information

Product Name	Acetyl-sec-Heptylsulphonyl Peroxide
CAS No.	33970-43-3
Molecular Formula	C9H18O5S
Molecular Weight	238.30 g/mol
Synonyms	Acetyl-sec-Heptylsulfonyl Peroxide; sec-Heptylsulfonyl Acetyl Peroxide; ASP; Acetyl Heptylsulfonyl Peroxide; Peroxide, acetyl sec-heptylsulfonyl; 1-(Heptan-2-ylsulfonyl)ethyl hydroperoxide; 2-Heptylsulfonyl Acetyl Peroxide; Acetyl(1-methylhexyl)sulfonyl peroxide
EINECS	Contact for details

Quality Control

Our Acetyl-sec-Heptylsulphonyl Peroxide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed to confirm identity, purity, and active oxygen content. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flames. Due to its nature as a strong oxidizer, it must be segregated from reducing agents, acids, bases, and combustible materials. Recommended storage temperature is 15-25°C. Handle and store under an inert atmosphere if specified.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Active Oxygen)	≥ 96.0 %
Purity (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Density (at 20°C)	~1.10 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.