Product Name: 2,6-Naphthoquinone
Chemical Formula: C10H6O2
Synonyms: Naphthoquinone, 2,6-Dioxynaphthalene
CAS Number: 524-42-5
Recommended Uses: Dye intermediates, chemical synthesis, research
Supplier Information: Reach out to the specific chemical supplier for detailed information, emergency lines, and distribution practices
Emergency Contact: Refer to the product label or local poison control center for guidance
Physical Hazards: Combustible solid, releases irritant vapors on heating
Health Hazards: Toxic by skin contact, inhalation, and ingestion; causes serious eye and skin irritation, may damage respiratory tract if inhaled
GHS Classification: Acute toxicity (oral, dermal, inhalation) Category 4; Skin and eye irritant
Signal Word: Warning
Hazard Statements: Harmful if swallowed, toxic if inhaled or absorbed through skin, causes severe irritation to eyes and skin
Precautionary Statements: Avoid breathing dust, minimize exposure by using PPE, wash hands thoroughly after handling
Chemical Name: 2,6-Naphthoquinone
Concentration: 98-100%
Impurities/Additives: Less than 2% residuals from synthesis possible
Molecular Weight: 158.16 g/mol
EINECS No: 208-339-7
Inhalation: Move victim to fresh air, administer artificial respiration if breathing stops, call for medical assistance right away
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water for at least 15 minutes, seek medical attention for irritation
Eye Contact: Rinse eyes with plenty of water for at least 15 minutes, lift upper and lower eyelids occasionally, seek immediate medical help
Ingestion: Seek immediate medical help, do not induce vomiting unless instructed by medical personnel, rinse mouth with water
Notes for Doctor: Treat symptomatically, monitor for respiratory or cardiovascular effects, provide symptomatic and supportive treatment
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam for small fires, water spray for cooling containers
Unsuitable Extinguishing Media: Do not use strong water jets, may spread burning material
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, toxic fumes, possible naphthalene and quinone products
Protective Equipment: Self-contained breathing apparatus and chemical protective clothing required
Special Procedures: Contain fire run-off, cool unaffected containers with water spray to prevent thermal decomposition
Personal Precautions: Wear chemical-resistant gloves, protective clothing, and safety goggles, avoid breathing dust
Environmental Precautions: Prevent entry into drains, sewers, or waterways, contain spill with dikes or absorbent material
Methods for Cleaning Up: Collect spilled material using a non-sparking tool, sweep up under ventilation, place in appropriate waste containers
Disposal of Collected Material: Dispose in accordance with local, state, and national regulations for hazardous materials
Handling: Avoid generation of dust, work in a ventilated area, wear PPE; keep away from heat, sparks, and open flame
Storage: Store in a tightly sealed, labeled container away from incompatible materials in a cool, dry, well-ventilated area
Incompatible Materials: Strong oxidizers, strong acids, reactive metals
Precautions: Practice strict hygiene, avoid direct contact and accidental ingestion or inhalation, keep away from food and beverages
Occupational Exposure Limits: No occupational exposure limit established, minimize exposure as much as possible
Engineering Controls: Use chemical fume hoods or local exhaust, provide eyewash stations and emergency showers
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles, lab coats or coveralls, dust masks or respirators if exposure limits may be exceeded
Hygiene Measures: Wash hands before breaks, after handling, remove contaminated clothing before leaving work area
Appearance: Yellow crystalline powders
Odor: Faint, slightly pungent odor
Boiling Point: Decomposes before boiling
Melting Point: 197-201°C
Solubility: Slightly soluble in water, soluble in organic solvents (ethanol, acetone, ether)
Density: About 1.44 g/cm³
Vapor Pressure: Not significant at room temperature
pH: Not applicable—non-aqueous
Flash Point: >110°C (closed cup)
Viscosity: Not applicable (solid at room temperature)
Stability: Stable under normal conditions, moisture-sensitive
Reactivity: Reacts with strong oxidizing agents, vigorous reaction with strong acids
Hazardous Decomposition Products: Carbon oxides, possible toxic quinone vapors
Polymerization: Does not undergo hazardous polymerization under recommended storage and handling
Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: LD50 (Oral rat): approximately 200-400 mg/kg, irritant, toxic in high concentrations
Chronic Toxicity: Prolonged exposure may cause skin sensitization, dermatitis, respiratory symptoms, or possible organ effects
Carcinogenicity: No conclusive animal or human data for carcinogenicity, not classified as carcinogen by IARC, NTP, OSHA
Mutagenicity: No confirmed evidence in standard laboratory tests
Other Effects: Eye and respiratory irritation, possible allergic reactions on repeated or prolonged exposure
Ecotoxicity: Harmful to aquatic life in higher concentrations, avoid environmental release
Persistence and Degradability: Not readily biodegradable in natural conditions, may persist in soils or water systems
Bioaccumulation: Potential for bioaccumulation in aquatic or terrestrial organisms
Mobility in Soil: Low mobility in soil, may leach slowly through ground material
Other Adverse Effects: Avoid discharge to environment, long-lasting effects possible if released
Disposal Method: Treat as hazardous chemical waste; incineration at licensed facilities recommended
Container Disposal: Decontaminate and dispose of container as hazardous waste according to regulations
Precautions: Don’t dispose via sewage systems or regular landfills, consult state and local guidelines for chemical waste
Recommended Practices: Collect all material and contaminated PPE, label waste as hazardous and arrange for compliant removal
UN Number: Consult latest transport code; typically UN2811 for toxic solids, organic
Transport Proper Shipping Name: Toxic solid, organic, n.o.s. (2,6-Naphthoquinone)
Hazard Class: 6.1 (toxic substances)
Packing Group: III (substances with moderate hazard)
Environmental Hazards: Marine pollutant if released into water
Special Precautions for Users: Avoid dust release in transit, ensure packaging is secure and labeled as hazardous material
US Federal Regulations: Not listed on SARA Section 313, subject to TSCA inventory
OSHA Status: Considered hazardous under definitions for workplace chemical safety
EU Regulations: Listed under REACH, requires notification for quantities above threshold; hazard pictograms and risk statements must appear on label
Other International: Subject to provisions in Canada’s WHMIS, Australia’s AICS, and similar chemical management programs
Labeling Requirements: Signal word “Warning”, hazard statements, precautionary measures required by GHS
