Description

Triphenylsulfonium Hexafluoroarsenate is a specialized photoacid generator (PAG) salt, a critical component in advanced photoresist formulations. Its primary value lies in generating strong acids upon exposure to specific light sources, initiating the chemical reactions necessary for high-resolution patterning. This compound is essential for manufacturers and R&D teams in the semiconductor, microelectronics, and advanced photopolymer industries who require precise and reliable photoacid generation for lithographic processes.

Application

• Semiconductor Photolithography: A key photoacid generator (PAG) in chemically amplified resists (CAR) for deep-ultraviolet (DUV) and extreme-ultraviolet (EUV) lithography.
• Advanced Microfabrication: Used in the production of integrated circuits (ICs), microelectromechanical systems (MEMS), and other micro-patterned devices.
• Photopolymerization Catalyst: Initiates cationic polymerization in UV-curable coatings, inks, and adhesives for industrial applications.
• Polymer Chemistry Research: Serves as a research chemical for developing new photoresist materials and studying cationic polymerization mechanisms.
• Specialty Chemical Synthesis: Acts as a source of the triphenylsulfonium cation or hexafluoroarsenate anion in organic and inorganic synthesis.

Basic Information

Item	Detail
Product Name	Triphenylsulfonium Hexafluoroarsenate
CAS No.	57900-42-2
Molecular Formula	C18H15AsF6S
Molecular Weight	452.25 g/mol
Synonyms	Triphenylsulfonium Hexafluoroarsenate(V); Triphenylsulfonium Hexafluoroarsenate Salt; TPS-HFA; Photoacid Generator 57900-42-2; Sulfonium, triphenyl-, hexafluoroarsenate(1-); Triphenylsulfonium AsF6; (Phenylsulfonio)benzene Hexafluoroarsenate
EINECS	Contact for details

Quality Control

Our Triphenylsulfonium Hexafluoroarsenate is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity, essential for sensitive lithographic processes. Each lot is analyzed to confirm identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity (typically ≥98% by HPLC), residual solvents, and other critical parameters is provided with every shipment to support your quality assurance requirements.

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) and should be handled in a dry atmosphere or under inert gas to prevent decomposition. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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