Description

Cumyl Hydroperoxide is a versatile organic peroxide widely recognized for its role as a free radical initiator in polymerization processes. Its primary commercial value lies in its ability to efficiently generate radicals at moderate temperatures, making it a critical component for controlling reaction kinetics and polymer properties. This compound is essential for manufacturers in the polymer, resin, and specialty chemical industries seeking reliable and effective initiators for bulk, solution, and suspension polymerizations.

Application

• Primary free radical initiator for the production of polystyrene, low-density polyethylene (LDPE), and acrylic polymers.
• Key component in the curing systems for unsaturated polyester resins (UPR) used in fiberglass-reinforced plastics (FRP) and sheet molding compounds (SMC).
• Used in the synthesis and modification of various elastomers, including styrene-butadiene rubber (SBR).
• Employed as a crosslinking agent for polyolefins and other thermoplastic materials to enhance thermal and mechanical properties.
• Essential in the manufacture of specialty adhesives, coatings, and composite materials requiring controlled curing.
• Acts as an intermediate in organic synthesis for the production of other peroxides and fine chemicals.

Basic Information

Product Name	Cumyl Hydroperoxide
CAS No.	80-15-9
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	Cumene Hydroperoxide; α,α-Dimethylbenzyl Hydroperoxide; CHP; Cumyl Hydroperoxide; Isopropylbenzene Hydroperoxide; (1-Methyl-1-phenylethyl)hydroperoxide; Peroxycumene; Cumolhydroperoxid
EINECS	201-254-7

Quality Control

Our Cumyl Hydroperoxide is manufactured under stringent quality management systems to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay by iodometric titration and impurity profiling, to meet exacting industry specifications. A Certificate of Analysis (COA) detailing purity, active oxygen content, and key parameters is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Keep away from reducing agents, strong acids, bases, and metallic salts. Recommended storage temperature is below 30°C (86°F). This product is a strong oxidizer; store separately from combustible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (by Titration)	≥ 80.0 %
Active Oxygen Content	≥ 8.40 %
Density (at 20°C)	1.01 - 1.03 g/cm³
Refractive Index (nD20)	1.520 - 1.525
Water Content (Karl Fischer)	≤ 0.5 %

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