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Name: Anthracene
Chemical Formula: C14H10
CAS Number: 120-12-7
Form: Solid, typically crystalline
Color: White or colorless, can appear with a blue fluorescence under UV light
Odor: Mild, aromatic
Category: Polycyclic aromatic hydrocarbon
Common Uses: Dye production, scintillation counters, organic semiconductor research, and as a precursor to other chemicals
Solubility: Poor in water, dissolves better in organic solvents like benzene
Background: Those working in environments with bulk chemicals, especially older chemistry labs, recognize anthracene as a benchmark compound where proper labeling and clear information matter every day.
Hazard Class: Classified as hazardous based on potential for irritation, flammability, environmental risks
Health Risks: Can irritate skin, eyes, and respiratory tract; possible photosensitizer
Acute Symptoms: Dust inhalation may produce coughing, mild discomfort, and sometimes mild chest tightness
Chronic Effects: Extended exposure may contribute to liver and lung concerns in studies, mostly animal-based
Fire Risk: Flammable at elevated temperatures, can release toxic fumes
Regulatory Notes: Some regions flag anthracene due to its presence among polycyclic aromatic hydrocarbons connected with environmental persistence
Experience Insight: Researchers have learned to double-check all local hazard ratings, since classification changes depending on updated toxicology research.
Chemical Identity: Pure anthracene
Impurities: Minor traces of other polycyclic aromatic hydrocarbons may exist in technical-grade samples
Concentration: 98-100% in reagents used for laboratory and industrial purposes
Source: Often derived from coal tar distillation, with synthesis possible but less common economically
Commentary: Anyone handling bulk anthracene soon sees there is rarely an issue of mix-ups with other substances, but purity matters for research and for controlling impurities that can impact both properties and safety.
Skin Contact: Wash with soap and warm water, remove contaminated clothing
Eye Contact: Rinse with water, keep eyelids open for at least 15 minutes
Inhalation: Move to fresh air, encourage breathing normally, seek attention for lingering symptoms
Ingestion: Rinse mouth with water, avoid inducing vomiting, consult medical professional
Special Note: Exposure cases involving anthracene show that quick response reduces discomfort and complications, especially for eye and respiratory exposure.
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam
Unsuitable Methods: Water jets can spread contamination if heated product is present
Hazards from Combustion: Burns to release toxic gases such as carbon monoxide, carbon dioxide, possible smoke rich in smaller aromatic compounds
Protective Equipment: Firefighters respond in full protective gear, including self-contained breathing apparatus
Advice from Experience: Storage practices that avoid stacking near heat sources lower risk, and small lab fires have been contained early thanks to prioritizing the right extinguishing equipment.
Personal Protection: Use goggles, gloves, mask if dust might arise
Environmental Precautions: Keep chemical out of drains, surface water, and soil
Cleanup Procedure: Sweep up, use non-sparking tools, seal in labeled containers
Ventilation: Increase airflow to affected area
Lessons Learned: Early intervention by those aware of material properties makes a difference. Once in the soil or water, retrieving anthracene becomes expensive and time-consuming.
Safe Handling: Avoid dust generation, prevent static charge buildup, use in well-ventilated spaces
Storage: Seal in containers that shield light, store in cool, dry place
Segregation: Do not store near oxidizing agents or sources of ignition
Personal Insight: Over years of managing chemical stocks, storing anthracene away from sunlight and minimizing air exposure keeps it stable and prevents slow discoloration or degradation.
Exposure Limits: Vary by jurisdiction, generally low due to uncertain long-term effects
PPE Recommendations: Safety goggles, gloves (nitrile, rubber, or PVC), lab coat or chemical-resistant clothing
Engineering Controls: Local exhaust ventilation, fume hoods
Monitoring: Personal air sampling in industrial sites helps to stay within guidelines
Practical Perspective: Those in research labs know the value of proper gloves and fresh filters in fume hoods—a single slip can cause weeks of skin discomfort.
Appearance: White or colorless crystals, emits blue fluorescence under UV
Melting Point: Around 216°C (421°F)
Boiling Point: 340°C (644°F)
Vapor Pressure: Extremely low at room temperature
Odor: Mildly aromatic
Density: 1.25 g/cm3 (approximate)
Solubility: Poor in water, high in organic solvents
Stability in Storage: Gradually discolors under prolonged light exposure
Reflective Note: The distinctive blue fluorescence has always been a curious feature, often used to confirm identity after extraction or during purity checks.
Chemical Stability: Stable in tightly sealed containers, away from sunlight and air
Reactivity: Reacts with strong oxidizers, forms peroxides upon prolonged light exposure
Conditions to Avoid: Exposure to light, open flame, and proximity to strong acids or bases
Incompatibility: Avoid mixing with nitric acid, strong oxidizing materials
Staff Anecdotes: Material in older glassware sometimes yellows, a subtle reminder to rotate stocks and replace aging sample containers proactively.
Acute Toxicity: Low for single exposures, but repeated or high-dose exposures present greater risk
Routes of Exposure: Inhalation, ingestion, skin or eye contact
Symptoms: Irritation of mucous membranes, rare headaches or drowsiness after exposure to dust
Chronic Exposure: Linked to some animal data suggesting possible carcinogenic and mutagenic effects, but human data limited
Personal Stance: Toxicologists involved in risk assessment often stress the importance of erring on the side of caution. Hygiene, routine monitoring, and reporting any symptoms promptly are habits that keep labs and workplaces safer.
Persistence: Resists breakdown in both soil and water
Bioaccumulation Potential: Moderate, tends to build up in aquatic organisms
Toxicity to Aquatic Life: Can harm fish and invertebrates if released in measurable amounts
Mobility: Binds tightly to particulates, may settle in sediment
Environmentally Relevant Lesson: High awareness about runoff and disposal prevents contamination that can last for years. Direct experience with costly remediation efforts in contaminated sites proves the point that prevention always beats cure.
Disposal Method: Incineration in permitted facilities or chemical waste companies
Prohibited Actions: Do not dump into sewage, water bodies, or municipal waste streams
Regulated Waste: Treated as hazardous waste in many regions
Advocacy Note: Choosing the right waste stream is not just regulatory compliance, it's a sign of respect for colleagues and community. Those who have seen chemical waste mishandled know the cost isn’t just financial, but environmental and reputational.
Transport Class: Often regulated under international dangerous goods codes
Packing Group: Usually classified in low danger group, but requires marking for flammable solids
Labeling Guidelines: Follow national and international labeling
Field Experience: Clear documentation, double checking container seals, and communicating the shipment details up front reduces confusion and incidents in transit. Seasoned shippers know paperwork can make or break a safe delivery.
Applicable Laws: Subject to chemical control programs including REACH, TSCA, and others
Local Registry: Appears on chemical inventories of many regulatory bodies
Restrictions: Some jurisdictions limit occupational exposure or usage in products
Regulatory Perspective: As science uncovers more about environmental and health impacts, rules change. Industry veterans follow updates, participate in professional forums, and approach compliance as an ongoing part of responsible chemical stewardship.
