Acenaphthene
Description
Acenaphthene (CAS 83-32-9) is a polycyclic aromatic hydrocarbon used as a chemical intermediate and monomer building block across pharmaceutical synthesis and polymer manufacturing.
It serves as a precursor and process chemical where a fused-ring aromatic scaffold is required in the production chain. In pharmaceutical manufacturing, it functions as a synthetic intermediate.
This material is essential in the preparation of active compounds requiring a naphthalene-derived carbon framework. Dye and pigment producers use it as a starting material for synthesizing colorants.
These naphthalimide-based colorants are frequently applied in printing inks and packaging coatings. In polymer chemistry, it acts as a monomer or co-monomer in specialty resin systems.
Controlled aromatic content influences thermal and mechanical performance in these systems. It also supports research-scale synthesis where a defined polycyclic aromatic building block is needed.
Acenaphthene is supplied as a white to pale yellow crystalline solid. Standard commercial grades include technical-grade material for industrial synthesis applications and higher-purity grades.
These grades are available to meet pharmaceutical intermediate requirements. Packaging typically ranges from kilogram-scale laboratory quantities to bulk drum supply for industrial procurement.
Physical Properties
| Melting Point | 95 °C |
| Boiling Point | 279 °C @ Press: 760 Torr |
| Density | 1.0242 g/cm³ @ Temp: 90 °C |
| Flash Point | 135 °C |
| Appearance | Acenaphthene is a white combustible, crystalline solid. PAHs are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons |
| Color | brown-beige |
| Form | crystalline |
| Water Solubility | 0.000347 g/100 mL |
| Vapor Pressure | 10 mm Hg ( 131 °C) |
| Refractive Index | 1.6048 |
| Log P | 4.04 at 30℃ and pH5-8 |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29029080 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Documentation
Other Names
peri-ethylenenaphthalene|1,2-Dihydroacenaphthylene|1,8-Ethylenenaphthalene|Acenaphthylene, 1,2-dihydro-|1,8-Dihydroacenaphthalene
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