Description

4-Octyloxydiphenyliodoniumhexafluoroantimonate is a specialized iodonium salt photoinitiator used in advanced cationic polymerization processes. This compound is critical for initiating rapid, controlled cross-linking reactions that are not inhibited by oxygen, enabling high-performance coatings and adhesives. It is essential for manufacturers in the electronics, optical fiber, and advanced composite materials industries seeking superior surface finish and deep-section curing capabilities.

Application

• Photoinitiator for Cationic UV-Curing Systems: Used in UV-curable coatings, inks, and adhesives for electronics and packaging.
• Fiber Optic Coating: Enables the production of fast-curing, protective secondary coatings on optical fibers.
• Advanced Composite Materials: Facilitates the curing of matrix resins in fiber-reinforced composites for aerospace and automotive applications.
• 3D Printing (Stereolithography): Acts as a key component in resins for high-resolution additive manufacturing.
• Electronic Encapsulants and Potting Compounds: Provides reliable initiation for protecting sensitive electronic components.
• Release Coatings and Pressure-Sensitive Adhesives: Used in formulations requiring precise cure control and surface properties.

Basic Information

Product Name	4-Octyloxydiphenyliodoniumhexafluoroantimonate
CAS No.	121239-75-6
Molecular Formula	C₂₀H₂₆F₆IO₃Sb
Molecular Weight	690.08 g/mol
Synonyms	4-Octyloxydiphenyliodonium Hexafluoroantimonate; (4-Octyloxyphenyl)phenyliodonium Hexafluoroantimonate; Iodonium, (4-octyloxyphenyl)phenyl-, hexafluoroantimonate(1-); UV Photoinitiator 250; CGI 250; Diphenyliodonium Hexafluoroantimonate Derivative; OPIA; Photoacid Generator PAG
EINECS	Contact for details

Quality Control

Our 4-Octyloxydiphenyliodoniumhexafluoroantimonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure consistency and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed in a dry environment and opened under inert atmosphere for critical applications to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Loss on Drying	< 0.5%

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