4-Octyloxydiphenyliodonium hexafluoroantimonate
[CAS# 121239-75-6]

Identification

• Classification: Organic raw materials >> Organometallic compound >> Organic scandium, tantalum, thallium, tungsten, antimony, lanthanum, lead, vanadium, molybdenum, chromium, ytterbium, etc.
• Name: 4-Octyloxydiphenyliodonium hexafluoroantimonate
• Synonyms: hexafluoroantimony(1-);(4-octoxyphenyl)-phenyliodanium
• Molecular Formula: C₂₀H₂₆IO.SbF₆
• Molecular Weight: 645.07
• CAS Registry Number: 121239-75-6
• EC Number: 682-395-5
• SMILES: CCCCCCCCOC1=CC=C(C=C1)[I+]C2=CC=CC=C2.F[Sb-](F)(F)(F)(F)F

Safety Data

• Hazard Symbols: GHS07;GHS09 Warning
• Risk Statements: H302-H315-H319-H332-H411
• Safety Statements: P261-P264-P264+P265-P270-P271-P273-P280-P301+P317-P302+P352-P304+P340-P305+P351+P338-P317-P321-P330-P332+P317-P337+P317-P362+P364-P391-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H332
Acute toxicity	Acute Tox.	4	H302
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319

Discovery and Applications

4-Octyloxydiphenyliodonium hexafluoroantimonate is a significant compound used primarily as a photoinitiator in UV-curable systems. As a member of the diaryliodonium salt family, this substance has been developed to enhance the efficiency of polymerization processes under ultraviolet (UV) light.

The compound is characterized by its unique structure, which includes an octyloxy group attached to the diphenyliodonium core and a hexafluoroantimonate counterion. The octyloxy group increases the solubility of the compound in various formulations, while the hexafluoroantimonate anion contributes to its stability and reactivity. This combination makes 4-Octyloxydiphenyliodonium hexafluoroantimonate highly effective as a photoinitiator.

The primary application of this chemical is in the development of UV-curable coatings, inks, and adhesives. In the coatings industry, it facilitates the creation of durable, high-performance finishes that are resistant to environmental factors such as moisture and chemicals. The rapid curing provided by this photoinitiator allows for faster production times and higher quality coatings.

In the ink industry, 4-Octyloxydiphenyliodonium hexafluoroantimonate is used to formulate UV-curable inks that offer vibrant colors and excellent adhesion to various substrates, including plastics and metals. These inks are essential for applications that require both aesthetic appeal and durability.

The compound is also employed in the adhesive industry to develop UV-curable adhesives with quick curing times and strong bonding properties. These adhesives are utilized in diverse applications, from electronics to packaging, where quick and reliable bonding is essential.

Research into 4-Octyloxydiphenyliodonium hexafluoroantimonate continues to explore its potential in new formulations and advanced materials. Its role in photoinitiation is critical for the ongoing development of high-performance materials in various industrial sectors.

References

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DOI: 10.1557/proc-381-51

2021. Structural features of functional polysiloxanes radical and ionic photo-curing for laser printing applications. Journal of Polymer Research.
DOI: 10.1007/s10965-021-02409-0

2024. Redox cationic frontal polymerization: a rapid curing approach for carbon fiber-reinforced composites with high fiber content. Monatshefte für Chemie - Chemical Monthly.
DOI: 10.1007/s00706-023-03168-y