Overview
Acenaphthylene is a polycyclic aromatic hydrocarbon (PAH) derived from naphthalene. It is a white crystalline solid with a distinct aromatic odor. As a versatile intermediate, it plays a significant role in organic synthesis and industrial applications. First isolated in the early 20th century, acenaphthylene is now commercially produced through dehydrogenation of acenaphthene. Its rigid, planar structure makes it useful in materials science, particularly for creating polymers with high thermal stability.
Physical and Chemical Properties
Acenaphthylene has a molecular weight of 152.19 g/mol and a density of 1.24 g/cm³. It melts at 92-94 °C and boils at 280 °C. The compound is soluble in organic solvents like benzene and ethanol but insoluble in water. Under UV light, acenaphthylene exhibits fluorescence, a property exploited in analytical chemistry. Its stability and aromaticity make it a preferred building block for synthesizing more complex PAHs and functionalized derivatives.
Main Applications
Acenaphthylene is widely used in the production of dyes, pigments, and resins. It serves as a precursor for acenaphthylene-based polymers, which are valued for their heat resistance and electrical insulation properties. In the pharmaceutical industry, it is a key intermediate for synthesizing bioactive compounds. Additionally, its fluorescent properties are utilized in optical materials and sensors.
Safety and Storage
Acenaphthylene is classified as an irritant and should be handled with gloves, goggles, and proper ventilation. Prolonged exposure may cause skin or eye irritation, and inhalation of dust should be avoided. Store the compound in tightly sealed containers away from light, heat, and oxidizing agents. Labeling and compliance with local hazardous material regulations are essential for safe storage and transport.
B2B Procurement Guide
When procuring acenaphthylene, prioritize suppliers with certified quality control processes. Key specifications include purity (≥98%), moisture content, and packaging integrity (e.g., foil-lined bags or drums). Bulk buyers should negotiate pricing based on volume and request safety data sheets (SDS) for compliance. Verify the supplier’s ability to meet delivery timelines and provide batch-specific analytical reports.
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