Description

Di(4-T-Butyl)Phenyliodonium 2-Trifluoromethylbenzenesulfonate is a high-purity iodonium salt photoinitiator, a critical component for advanced cationic polymerization processes. Its value lies in its exceptional efficiency and solubility, enabling the production of high-performance, durable coatings and adhesives under UV light. This compound is essential for manufacturers in the electronics, photoresist, and specialty polymer industries seeking reliable and consistent curing performance.

Application

• UV-Curable Coatings & Inks: Acts as a key photoacid generator (PAG) for high-speed curing of protective and decorative finishes on plastics, metals, and wood.
• Photoresists for Microelectronics: Used in the formulation of advanced photoresists for semiconductor manufacturing and printed circuit board (PCB) fabrication.
• Optical Fiber Coatings: Enables the rapid and efficient curing of protective cladding layers for telecommunications and data transmission fibers.
• Adhesives & Sealants: Facilitates instant, on-demand curing for high-strength industrial adhesives and sealants in assembly applications.
• Dental & Medical Composites: Employed in light-curable dental restorative materials and biocompatible polymer devices.
• 3D Printing (SLA/DLP): Serves as a photoinitiator in resin formulations for stereolithography and digital light processing additive manufacturing.

Basic Information

Product Name	Di(4-T-Butyl)Phenyliodonium 2-Trifluoromethylbenzenesulfonate
CAS No.	229325-98-8
Molecular Formula	C27H30F3IO3S
Molecular Weight	634.50 g/mol
Synonyms	Bis(4-tert-butylphenyl)iodonium 2-(Trifluoromethyl)benzenesulfonate; (4-tert-Butylphenyl)phenyliodonium α,α,α-Trifluoro-o-toluenesulfonate; Di(4-tert-butylphenyl)iodonium Triflate Derivative; Photoacid Generator PAG; Iodonium Salt Photoinitiator; DTBPI-TFMS; CAS 229325-98-8
EINECS	Contact for details

Quality Control

Our Di(4-T-Butyl)Phenyliodonium 2-Trifluoromethylbenzenesulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, NMR for structural confirmation, and Karl Fischer titration for moisture content. Certificates of Analysis (COA) documenting full specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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