Description

Dimethylphenacylsulfonium Tetrafluoroborate is a specialized sulfonium salt photoinitiator, widely recognized for its high reactivity and efficiency in UV-curing applications. Its primary value lies in generating reactive species upon exposure to UV light, enabling rapid polymerization and cross-linking in advanced coating and adhesive formulations. This compound is essential for manufacturers in the photopolymer, electronics, and high-performance printing ink industries seeking to enhance product durability and processing speed.

Application

• UV-Curable Coatings and Inks: A key photoinitiator for rapid curing in industrial wood, metal, plastic, and paper coatings, as well as flexographic and screen printing inks.
• Photoresists and Electronics: Used in the formulation of photoimageable solder masks and photoresists for printed circuit board (PCB) manufacturing.
• Adhesives and Sealants: Facilitates fast-setting in UV-curable adhesives for optical, medical, and automotive assembly applications.
• Dental and Medical Materials: Employed in light-cured dental composites, restorative materials, and biocompatible device coatings.
• 3D Printing (Stereolithography): Serves as a photoinitiator in resin formulations for additive manufacturing, ensuring precise and fast layer curing.
• Optical Fiber Coatings: Critical for the production of protective, UV-cured primary and secondary coatings on optical fibers.

Basic Information

Product Name	Dimethylphenacylsulfonium Tetrafluoroborate
CAS No.	24806-57-3
Molecular Formula	C10H13BF4OS
Molecular Weight	268.08 g/mol
Synonyms	Phenacyl Dimethyl Sulfonium Tetrafluoroborate; (Dimethyl)(2-oxo-2-phenylethyl)sulfonium Tetrafluoroborate; 2-Oxo-2-phenylethyl Dimethyl Sulfonium Tetrafluoroborate; DMS-TFB; Photoinitiator DMS; Sulfonium, (2-oxo-2-phenylethyl)dimethyl-, tetrafluoroborate(1-); Irgacure 250
EINECS	Contact for details

Quality Control

Our Dimethylphenacylsulfonium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive photopolymer applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent decomposition. Keep away from incompatible materials such as strong bases and oxidizing agents.

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%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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