Description

Bis(4-tert-Butylphenyl)Iodonium Triflate is a high-purity diaryliodonium salt photoacid generator (PAG) essential for advanced photopolymerization processes. Its primary value lies in generating strong acids upon UV or deep-UV exposure, initiating highly efficient cationic polymerization reactions. This compound is critically needed by manufacturers in the electronics industry for photoresists and by formulators of high-performance UV-curable coatings, inks, and adhesives.

Application

• Photoresist Formulation: A key photoacid generator (PAG) in chemically amplified resists (CARs) for semiconductor microfabrication and printed circuit board (PCB) production.
• UV-Curable Coatings & Inks: Initiates rapid cationic polymerization for coatings on plastics, metals, and wood, offering excellent adhesion and chemical resistance.
• Fiber Optic Coatings: Used in the production of UV-curable primary and secondary coatings for optical fibers, ensuring fast cure speeds and low shrinkage.
• Advanced Adhesives: Enables the development of high-strength, low-stress cationic UV-curable adhesives for electronics assembly and optical bonding.
• 3D Printing (Stereolithography): Serves as a photoinitiator in cationic resin formulations for vat polymerization, providing dimensional stability and material toughness.
• Dental & Medical Materials: Employed in light-curable composites and sealants where controlled, deep-section curing is required.

Basic Information

Product Name	Bis(4-tert-Butylphenyl)Iodonium Triflate
CAS No.	84563-54-2
Molecular Formula	C21H26F3IO3S
Molecular Weight	542.40 g/mol
Synonyms	Bis(4-tert-butylphenyl)iodonium trifluoromethanesulfonate; (4-tert-Butylphenyl)phenyliodonium Triflate; Iodonium, bis(4-(1,1-dimethylethyl)phenyl)-, trifluoromethanesulfonate; Photoacid Generator PAG; Diaryliodonium Salt; CGI 725
EINECS	Contact for details

Quality Control

Our Bis(4-tert-Butylphenyl)Iodonium Triflate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via NMR and IR spectroscopy, 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 it meets the stringent requirements of advanced photopolymer applications.

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 should be handled in a dry environment to prevent decomposition. Keep container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage.

Specification

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

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