Description

Lithium Phenyl-2,4,6-Trimethylbenzoylphosphinate is a highly efficient photoinitiator widely used in UV-curable systems. This compound matters for its exceptional reactivity and solubility, enabling rapid polymerization under UV light to form durable, high-performance coatings and materials. Industries such as advanced electronics, 3D printing (vat photopolymerization), and specialty inks and adhesives need it to achieve precise curing and superior final product properties.

Application

• UV-Curable Coatings & Inks: A key component for fast-curing, high-gloss surface finishes on plastics, metals, and wood.
• 3D Printing (Stereolithography - SLA/DLP): Serves as a critical photoinitiator in resin formulations for producing high-resolution, functional prototypes and end-use parts.
• Electronics Encapsulation & Adhesives: Used in photopolymerizable resins for potting, sealing, and bonding sensitive electronic components.
• Dental & Medical Composites: Facilitates the rapid hardening of restorative materials and biocompatible devices under dental curing lights.
• Optical Fiber Coatings: Enables the production of protective, secondary coatings with precise mechanical and optical properties.
• Graphic Arts & Printing Plates: Essential for manufacturing photopolymer printing plates and flexographic inks that require immediate curing.

Basic Information

Product Name	Lithium Phenyl-2,4,6-Trimethylbenzoylphosphinate
CAS No.	85073-19-4
Molecular Formula	C16H16LiO3P
Molecular Weight	294.21 g/mol
Synonyms	Lithium Phenyl(2,4,6-trimethylbenzoyl)phosphinate; LAP; Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide lithium salt; TPO-Li; Lithium (2,4,6-Trimethylbenzoyl)phenylphosphinate; Photoinitiator LAP; Benzene, [(2,4,6-trimethylbenzoyl)phosphinyl]-, lithium salt (1:1)
EINECS	Contact for details

Quality Control

Our Lithium Phenyl-2,4,6-Trimethylbenzoylphosphinate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise specifications for photoinitiator performance. A comprehensive Certificate of Analysis (COA) detailing purity, residual solvents, and performance metrics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to moisture or light may affect its potency and performance. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	< 20 ppm
UV Absorption	Characteristic profile

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