Description

Sulfonium (4-Methylphenyl)Diphenyl Hexafluorophosphate is a high-purity, non-nucleophilic photoacid generator (PAG) salt. This compound is critical for initiating cationic polymerization reactions upon exposure to specific wavelengths of light, enabling precise control over the curing process. It is primarily required by manufacturers in the electronics and advanced materials sectors for applications such as photoresists, UV-curable coatings, and specialty adhesives.

Application

• Photoresist Formulation: A key component in chemically amplified resists (CARs) for semiconductor and microelectronics fabrication.
• UV-Curable Coatings & Inks: Serves as a photoinitiator for cationic polymerization in coatings, inks, and varnishes that require deep-section curing and low shrinkage.
• Fiber Optics: Used in the production of UV-curable primary coatings for optical fibers.
• Advanced Composites: Facilitates the curing of epoxy-based matrix resins in composite materials manufacturing.
• 3D Printing (Stereolithography): Acts as a photoinitiator in vat polymerization processes for high-resolution additive manufacturing.
• Adhesives & Sealants: Enables rapid, on-demand curing of high-performance industrial adhesives.
• Academic & Industrial R&D: Employed as a research chemical in the development of new photopolymerizable systems and catalytic processes.

Basic Information

Product Name	Sulfonium (4-Methylphenyl)Diphenyl Hexafluorophosphate
CAS No.	66482-51-7
Molecular Formula	C19H17F6PS
Molecular Weight	422.36 g/mol
Synonyms	(4-Methylphenyl)diphenylsulfonium Hexafluorophosphate; Diphenyl(4-tolyl)sulfonium Hexafluorophosphate; p-Tolyldiphenylsulfonium Hexafluorophosphate; Photoacid Generator PAG; Sulfonium Salt PAG; (p-Tolyl)diphenylsulfonium PF6; UV Photoinitiator 369
EINECS	Contact for details

Quality Control

Our Sulfonium (4-Methylphenyl)Diphenyl Hexafluorophosphate 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 it meets the stringent requirements for electronic-grade applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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 under a dry, inert atmosphere to prevent decomposition. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (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.