Bis(4-methylphenyl)iodonium hexafluorophosphate
[CAS# 60565-88-0]

Identification

• Classification: Organic raw materials >> Organic phosphine compound
• Name: Bis(4-methylphenyl)iodonium hexafluorophosphate
• Synonyms: Iodonium bis(4-methylphenyl)hexafluorophosphate
• Molecular Formula: C₁₄H₁₄I.F₆P
• Molecular Weight: 454.13
• CAS Registry Number: 60565-88-0
• EC Number: 262-301-5
• SMILES: CC1=CC=C(C=C1)[I+]C2=CC=C(C=C2)C.F[P-](F)(F)(F)(F)F

Safety Data

• Hazard Symbols: GHS05 Danger
• Risk Statements: H314
• Safety Statements: P260-P264-P280-P301+P330+P331-P302+P361+P354-P304+P340-P305+P354+P338-P316-P321-P363-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314

• Transport Information: UN 1759

Discovery and Applications

Bis(4-methylphenyl)iodonium hexafluorophosphate, a compound featuring both iodine and hexafluorophosphate moieties, has become a significant player in the field of photochemistry and materials science due to its unique properties. This substance is known for its role as a photoinitiator in various polymerization processes, including those used in coatings, inks, and dental materials.

The discovery of bis(4-methylphenyl)iodonium hexafluorophosphate can be traced back to the 1980s when researchers began exploring the use of iodonium salts as efficient photoinitiators. The compound was synthesized through the reaction of 4-methylphenyl iodide with hexafluorophosphoric acid. This reaction yields a highly stable and reactive iodonium salt, which was found to be an effective photoinitiator in curing processes.

In application, bis(4-methylphenyl)iodonium hexafluorophosphate is primarily used in ultraviolet (UV) and visible light curing systems. Its role as a photoinitiator is crucial in initiating the polymerization of various monomers and oligomers when exposed to light. This property makes it indispensable in the production of high-performance coatings, adhesives, and inks. The compound’s ability to generate free radicals upon light exposure facilitates the rapid curing of these materials, resulting in improved efficiency and performance of the end products.

Moreover, bis(4-methylphenyl)iodonium hexafluorophosphate is employed in the field of dental materials. Its photoinitiating properties are harnessed in the curing of dental resins and composites. The use of this compound ensures that dental materials achieve their desired hardness and durability quickly, leading to more efficient dental procedures and better patient outcomes.

In addition to its applications in coatings and dental materials, bis(4-methylphenyl)iodonium hexafluorophosphate is also used in the production of photoresists for photolithography. This technique is critical in the manufacturing of semiconductors and electronic components, where precise patterning is required. The compound's ability to facilitate rapid and reliable curing makes it an excellent choice for this high-precision application.

The unique properties of bis(4-methylphenyl)iodonium hexafluorophosphate, such as its stability and efficiency as a photoinitiator, have made it a valuable component in various industrial processes. Its applications extend across multiple fields, highlighting its versatility and importance in modern material science and manufacturing technologies.

References

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DOI: 10.1007/s40964-024-00642-9

2023. Radiation Curing of Fiber Reinforced Polymer Composite Based Mechanical Joints. Materials Horizons: From Nature to Nanomaterials.
DOI: 10.1007/978-981-19-9048-9_4

2022. The influence of inorganic fillers on the light transmission through resin-matrix composites during the light-curing procedure: an integrative review. Clinical Oral Investigations, 26(6).
DOI: 10.1007/s00784-022-04589-5