Description

Diphenyliodonium Hydrogen Sulphate is an organoiodine salt that serves as a highly effective photoacid generator (PAG) and cationic initiator. This compound is valued for its ability to generate strong acids upon exposure to UV light or heat, initiating critical polymerization and cross-linking reactions. It is essential for manufacturers in the electronics, advanced coatings, and specialty polymer industries seeking reliable and efficient curing solutions for high-performance applications.

Application

• Photoacid Generator (PAG) in Electronics: A key component in photoresists for semiconductor manufacturing and printed circuit board (PCB) fabrication.
• Cationic UV-Curing Initiator: Used to initiate the polymerization of epoxy resins and vinyl ethers in UV-curable inks, coatings, and adhesives.
• Cross-linking Agent for Polymers: Enhances the thermal and mechanical properties of specialty polymers and composites.
• Catalyst in Organic Synthesis: Facilitates various reactions, including C-H functionalization and cyclization, in pharmaceutical and fine chemical research.
• Surface Modification: Employed to graft functional groups onto material surfaces to alter adhesion and wettability properties.

Basic Information

Product Name	Diphenyliodonium Hydrogen Sulphate
CAS No.	49723-69-5
Molecular Formula	C12H11IO4S
Molecular Weight	378.18 g/mol
Synonyms	Diphenyliodonium bisulfate; Diphenyliodonium sulfate (1:1); Iodonium, diphenyl-, sulfate (1:1); Diphenyliodonium hydrogensulfate; Bis(diphenyliodonium) sulfate; (Diphenyl-λ³-iodanyl) hydrogen sulfate
EINECS	Contact for details

Quality Control

Our Diphenyliodonium Hydrogen Sulphate is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting standards for sensitive applications like photoresist formulation. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability, consistency, and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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