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Fluoranthene stands as a polycyclic aromatic hydrocarbon built from four fused benzene rings. Also known by the molecular formula C16H10, this solid compound occurs as pale yellow to white crystals and shows limited solubility in water. The structure holds importance in organic chemistry and environmental science. Typical sources include fossil fuel combustion, wildfire residue, and several industrial chemical processes. Commercial Fluoranthene usually appears in flakes, powder, or crystalline forms, reflecting its physical adaptability in laboratory and production environments. Its CAS number is 206-44-0, and under the Harmonized System, its HS Code relates to 2902.90, covering aromatic hydrocarbons.
With a molecular weight of 202.25 g/mol, Fluoranthene maintains a melting point around 108–110°C and a boiling point that sits near 375°C. Its density averages between 1.25 and 1.30 g/cm³. In terms of appearance, the compound shows as distinct yellowish-white crystals, commonly utilized in research and industrial settings due to its stability and solid state at room temperature. These characteristics shape how researchers handle, prepare, and store the compound, since its low solubility in water (around 0.26 mg/L at 25°C) challenges some laboratory routines, while its solubility improves in ethanol, benzene, and other organic solvents.
Fluoranthene’s molecular structure—a flat, fused ring system—lends itself to stability and aromaticity, making it valuable in structural studies and as a reference standard in laboratories examining hydrocarbon content in soils, air, and sediments. The crystalline material finds use as raw material for synthesizing other fine chemicals or specialized dyes, leveraging its aromatic backbone.
Producers ship Fluoranthene in several forms: fine powder, translucent flakes, or small crystalline pearls. The material remains a solid under ambient conditions and rarely appears as a liquid or solution, due to its high melting point and low vapor pressure. For industrial uses, vendors typically specify purity above 96%, and users should confirm details such as grain size, packaging weight (often per kilogram or liter volume), and safety sheet information. These specifics matter in laboratory planning and in processing larger batches for chemical synthesis or environmental analysis.
Chemists depend on fluoranthene’s consistency. Solid forms resist caking and clumping, so they handle smoothly in dry, climate-controlled conditions. Chemical suppliers label materials with clear batch numbers, manufacturing dates, and hazard warnings, since regulatory agencies set rules regarding the transport and handling of polycyclic aromatic hydrocarbons.
Handling Fluoranthene demands careful attention to safety. This aromatic compound is classified as hazardous and harmful. Inhalation of dust or accidental skin contact can irritate respiratory passages and skin, while chronic exposure may increase cancer risk. Workers should handle all raw materials in well-ventilated laboratories or facilities, using gloves and protective eyewear. Regulatory bodies like the US Environmental Protection Agency (EPA) and the International Agency for Research on Cancer (IARC) list fluoranthene as a possible carcinogen, reflecting growing evidence from occupational health studies and animal models.
Industrial operations must follow strict storage guidelines. Secure containers must minimize exposure to light and heat, given that some polycyclic aromatic hydrocarbons degrade under UV. Keeping written inventories, proper labeling, and Safety Data Sheets nearby can make a real difference in emergency situations or inspections. The need for appropriate waste management—never pouring remnants down the drain—arises because Fluoranthene persists in the environment, posing long-term risks to aquatic life and ecosystems.
Fluoranthene serves as a benchmark compound for environmental chemists conducting soil and air quality analyses. Industrial chemists value its use as a precursor or intermediate for dyes, pigments, and advanced plastics, drawing from its robust aromatic skeleton. Some research laboratories employ Fluoranthene as a model substance when testing new remediation technologies, measuring how microbes or engineered catalysts degrade persistent organic pollutants. The synthetic versatility attached to four-ring aromatic hydrocarbons unlocks innovation in materials science and green chemistry sectors, though every kilogram processed adds to workplace safety responsibilities.
Raw materials suppliers who move fluoranthene shoulder environmental responsibilities. Tracking purity, ensuring traceability from supplier to end user, and reporting quantities used or emitted into the air or water form part of regular compliance work. Environmental sample testing relies on certified reference standards, which often mean that the quality, density, and crystalline integrity of this material must be tightly controlled.
Finding better ways to manage and handle hazardous chemicals like Fluoranthene directly protects workplaces and communities. Cleaner combustion technologies, selective filtration systems for industrial emissions, and rigorous recycling of chemical packaging weigh in as practical solutions. Scientists and safety experts must build broader awareness so everyone who works with such materials can spot hazards early and know the right steps in case of contact or spillage.
