Description

Triphenylsulfonium Tetrafluoroborate is a specialized onium salt widely recognized for its role as a highly efficient photoacid generator (PAG). This compound is critical in advanced manufacturing processes where precise control of chemical reactions initiated by light is required. It is an essential component for electronics, photoresist formulations, and other high-tech applications demanding exceptional purity and performance reliability.

Application

• Photoacid Generator (PAG) in Photoresists: A key component in chemically amplified photoresists for deep-UV (DUV), KrF, and ArF lithography in semiconductor and microelectronics fabrication.
• Cationic Photoinitiator: Used to initiate the polymerization of epoxy resins, vinyl ethers, and other monomers in UV-curable coatings, inks, and adhesives.
• Catalyst in Organic Synthesis: Employed as a Lewis acid catalyst or promoter in various organic transformations and synthesis of fine chemicals.
• Research & Development: Serves as a valuable reagent in academic and industrial R&D for studying cationic polymerization mechanisms and developing new photochemical systems.
• Advanced Material Production: Utilized in the synthesis of functional polymers and materials with specific optical or electronic properties.

Basic Information

Product Name	Triphenylsulfonium Tetrafluoroborate
CAS No.	437-13-8
Molecular Formula	C18H15BF4S
Molecular Weight	350.19 g/mol
Synonyms	Triphenylsulfonium Fluoborate; Triphenylsulfonium BF4; S,S,S-Triphenylsulfonium Tetrafluoroborate; TPS-Tf; TPS-BF4; Photoacid Generator TPS-101 (Trade); Sulfonium, triphenyl-, tetrafluoroborate(1-); Triphenylsulfonium Tetrafluoroborate(1-)
EINECS	207-112-7

Quality Control

Our Triphenylsulfonium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and Karl Fischer titration, to ensure it meets the high-purity standards required for electronics and photochemical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming specifications for identity, purity, and impurity profiles.

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 material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Melting Point	285 - 295 °C (dec.)
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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