Overview
2-Hydroxy-2-phenylacetophenone, also known as benzoin, is an organic compound primarily used as a UV photoinitiator. It plays a critical role in industrial applications where UV curing is required, such as in coatings, inks, and adhesives. The compound is valued for its efficiency in initiating photopolymerization reactions under UV light. The demand for 2-hydroxy-2-phenylacetophenone has grown alongside advancements in UV-curable technologies. Its ability to facilitate rapid curing while maintaining product stability makes it a preferred choice in various manufacturing processes. The compound is typically supplied as a crystalline powder, ensuring ease of handling and formulation.
Physical and Chemical Properties
2-Hydroxy-2-phenylacetophenone is characterized by its white to pale yellow crystalline appearance. It has a melting point of 132-135 °C and is soluble in common organic solvents such as ethanol and acetone, though it is insoluble in water. These properties make it suitable for incorporation into solvent-based formulations. The compound exhibits stability under normal storage conditions but may degrade if exposed to excessive heat or moisture. Its molecular weight of 212.24 g/mol and precise structural configuration contribute to its effectiveness as a photoinitiator. Careful handling is recommended to maintain its purity and performance.
Main Applications
The primary application of 2-hydroxy-2-phenylacetophenone is in UV-curable coatings, where it acts as a photoinitiator to accelerate the curing process. This is particularly useful in industries requiring fast-drying finishes, such as automotive and electronics. The compound is also employed in UV-curable inks and adhesives, enhancing production efficiency. Additionally, it finds use in photopolymerization processes for creating specialized polymers. Its ability to initiate reactions under UV light without leaving harmful residues makes it a sustainable choice for environmentally conscious manufacturers. The versatility of this compound ensures its relevance across multiple industrial sectors.
Safety and Storage
While 2-hydroxy-2-phenylacetophenone is generally stable, it can cause mild skin and eye irritation upon direct contact. Protective equipment such as gloves and goggles should be worn when handling the compound. Proper ventilation is also recommended to minimize inhalation risks. Storage conditions are critical to maintaining the compound's integrity. It should be kept in a cool, dry place, away from direct sunlight and moisture. Containers should be tightly sealed to prevent contamination and degradation. Adhering to these guidelines ensures both safety and product longevity.
B2B Procurement Guide
When procuring 2-hydroxy-2-phenylacetophenone, it is essential to verify the supplier's credentials and request a Certificate of Analysis (COA) to confirm purity and quality. Bulk purchases may offer cost advantages, but storage capacity and shelf life should be considered to avoid waste. Price ranges typically vary between $50-$100 per kg, depending on purity levels and supplier terms. Establishing long-term relationships with reliable suppliers can ensure consistent quality and timely deliveries. Additionally, inquire about packaging options to suit your handling and storage requirements.
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