Description

Hydroxymethyltert-Butylperoxide CAS NO 17742-78-8 is a specialized organic peroxide used as a high-activity initiator in polymerization reactions. Its primary value lies in its ability to efficiently generate free radicals at moderate temperatures, enabling precise control over polymer molecular weight and structure. This compound is essential for manufacturers in the polymer and specialty chemical industries, particularly for producing high-performance resins, elastomers, and other advanced materials.

Application

• Polymerization Initiator: A key free-radical initiator for the production of polyethylene (LDPE), polystyrene (PS), and polyvinyl chloride (PVC).
• Crosslinking Agent: Used in the curing and crosslinking of unsaturated polyester resins and silicone rubbers to enhance thermal and mechanical properties.
• Synthesis Intermediate: Serves as a building block in organic synthesis for introducing peroxide functionalities into target molecules.
• Resin Manufacturing: Critical in the production of acrylic resins and coatings, where it controls the polymerization rate and final product quality.
• Elastomer Production: Employed in the synthesis of synthetic rubbers and thermoplastic elastomers (TPEs) to achieve desired elasticity and strength.

Basic Information

Product Name	Hydroxymethyltert-Butylperoxide
CAS No.	17742-78-8
Molecular Formula	C5H12O3
Molecular Weight	120.15 g/mol
Synonyms	1-Hydroxy-1-methylethyl tert-butyl peroxide; 2-Hydroxy-2-propyl tert-butyl peroxide; tert-Butyl hydroperoxide, 1-hydroxy-1-methylethyl ester; (CH3)3COOC(CH3)2OH; Hydroxymethyl tert-butyl peroxide; HMtBP; Peroxide, tert-butyl hydroxymethyl
EINECS	Contact for details

Quality Control

Our Hydroxymethyltert-Butylperoxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profiling, to ensure it meets precise specifications for purity and reactivity. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its properties of being easily oxidized (store under inert atmosphere) and highly volatile, it is recommended to store under an inert atmosphere (e.g., nitrogen) at temperatures between 2°C and 8°C (35°F - 46°F). Keep away from incompatible materials such as strong acids, reducing agents, and heavy metal compounds.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Active Oxygen Content	Contact for details
Water Content (KF)	≤ 0.5 %
Refractive Index (n20D)	Contact for details
Density (20°C)	Contact for details

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