Product Name: o-Quinone
Chemical Formula: C6H4O2
CAS Number: 86-51-1
Synonyms: ortho-Quinone, 1,2-Benzoquinone
Recommended Use: Laboratory reagent, organic synthesis intermediate
Manufacturer: Chemical supplier or laboratory provider
Emergency Contact: Local emergency response or poison control center
Address: Facility-specific address for correspondence and emergencies
Telephone Number: 24-hour access to hazardous materials specialist
Email Contact: Facility-specific for reporting incidents or questions
Classification: Acute toxicity (oral), Acute toxicity (dermal), Skin irritation, Eye irritation, Specific Target Organ Toxicity
Signal Word: Danger
Hazard Statements: Toxic if swallowed, causes skin irritation, causes serious eye damage, may cause respiratory irritation
Pictogram: Exclamation mark, skull and crossbones, health hazard symbol
Precautionary Statements: Avoid breathing dust or vapor, wash thoroughly after handling, use only outdoors or in well-ventilated areas, wear protective gloves and eye protection
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Physical Hazards: Dust and powder may form explosive mixtures with air
Environmental Hazards: Harmful to aquatic life with long-lasting effects
Chemical Identity: o-Quinone
Common Name: 1,2-Benzoquinone
PURITY: >98% (typical for laboratory grade)
Impurities and Stabilizers: None reported for reagent grade
Molecular Weight: 108.09 g/mol
Other Ingredients: No significant other ingredients in pure product
Concentration: 100% o-Quinone for pure material, check specific source for mixtures or dilutions
Inhalation: Move person to fresh air, keep at rest in a position comfortable for breathing, seek medical attention if symptoms such as cough, difficulty breathing, or irritation persist
Skin Contact: Remove contaminated clothing immediately, wash skin thoroughly with soap and water for at least 20 minutes, seek medical advice for irritation or burns
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek immediate medical help
Ingestion: Rinse mouth, do not induce vomiting, seek urgent medical attention, show the label or SDS to healthcare provider
Symptoms: Irritation, redness, burning sensation, headache, dizziness, nausea
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical powder, alcohol-resistant foam
Unsuitable Media: Direct water stream may spread chemical
Special Hazards: Product can emit toxic gases (carbon oxides) during combustion, dust in air may spark or explode
Protective Equipment: Firefighters should wear self-contained breathing apparatus, full protective gear
Advice for Firefighters: Approach fire from upwind, avoid inhaling vapors, cool exposed containers with water spray, evacuate area if possible
Combustion Products: Carbon monoxide, carbon dioxide, other potentially hazardous vapors
Personal Precautions: Wear chemical-resistant gloves, goggles, protective clothing, suitable dust mask or respirator in case of spills
Environmental Precautions: Prevent entry into drains, water courses, or soil; alert proper authorities
Methods for Containment: Stop leak if it can be done safely, cover material to minimize dust
Clean-up Methods: Avoid raising dust, collect spillage using inert absorbent (like sand or vermiculite), place in labeled container for disposal, ventilate area, clean contaminated surfaces thoroughly, dispose of contaminated material according to guidelines
Decontamination: Rinse affected area with water, avoid products that react with o-Quinone
Disposal: Gather all cleanup materials in closed, labeled containers for hazardous waste handling
Handling: Use local exhaust ventilation to limit airborne exposure, open containers in fume hood, use only with protective equipment, avoid contact with eyes, skin, and clothing
Storage: Store in cool, dry, well-ventilated area away from heat or ignition sources, protect from light and moisture, keep container tightly closed, separate from incompatible materials such as reducing agents, strong bases, or oxidizers
Hygiene Practices: Wash hands before breaks and after handling, do not eat, drink, or smoke while using material
Storage Conditions: Temperature control devices recommended, store separately from flammable substances, avoid metal shelving that may chemically react, use labeled, compatible containers
Exposure Limits: Consult national or regional guidelines for occupational exposure limits, specific limit for o-Quinone may not be established, follow standards for similar aromatics
Engineering Controls: Install local exhaust and mechanical ventilation, use safety shower and eyewash station within 10 meters of work area
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), impervious lab coat or apron, safety goggles or face shield, NIOSH-approved respirator if dust or vapor present
Respiratory Protection: Suitable protective mask for work with powders or volatile compounds
Preventive Measures: Keep material away from incompatible chemicals, implement leak detection for high-use areas, monitor air regularly for contamination
Appearance: Yellow to orange crystalline powder
Odor: Sharp, acrid
Odor Threshold: Not established
pH (in solution): Slightly acidic
Melting Point: 115-119°C
Boiling Point: 242°C (decomposes)
Flash Point: Not available, estimated low
Evaporation Rate: Not applicable for solid
Flammability: May form combustive dust clouds
Vapor Pressure: Low at room temperature
Vapor Density: Heavier than air (if vaporized)
Solubility: Slight in water, more in organic solvents like ether, alcohol
Partition Coefficient (log Kow): ~1.1
Auto-Ignition Temperature: Not established
Decomposition Temperature: Tends above 242°C
Viscosity: Not applicable (solid compound)
Chemical Stability: Stable under recommended storage and handling conditions, decomposes at elevated temperature
Reactivity: Reacts with reducing agents, strong acids, bases, and some metals
Hazardous Reactions: Exothermic reactions possible with incompatible materials, runaway reactions under improper conditions
Conditions to Avoid: Heat, open flame, sparks, moisture, exposure to direct sunlight, mechanical shock
Incompatible Materials: Reducing agents, strong bases, strong acids, active metals
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, unknown toxic vapors, phenolic compounds
Acute Toxicity: Harmful if swallowed, inhaled, or absorbed through skin. LD50 Oral (rat): 130 mg/kg, LD50 Dermal (rat): Data not available, but expected to be moderately toxic
Irritation: Causes skin irritation, serious eye damage, respiratory irritation
Chronic Effects: Prolonged or repeated exposure may cause organ damage, sensitization, or central nervous system effects
Carcinogenicity: Not classified by OSHA, NTP, or IARC as carcinogenic
Mutagenicity: Some studies report mutagenic effects in cellular systems. Sensitive populations should use extreme caution
Other Health Effects: Headache, dizziness, nausea, dermatitis, allergic reactions possible in susceptible individuals
Target Organs: Skin, eyes, respiratory system
Symptoms of Overexposure: Burning, redness, vision changes, coughing, headaches, abdominal pain, pulmonary irritation
Ecotoxicity: Harmful to aquatic life, possible long-term negative effects on freshwater environments, slight potential for bioaccumulation
Aquatic Toxicity: LC50 (fish, 96h): Data limited, estimated to be toxic in lower mg/L range
Persistence and Degradability: Slow breakdown in aquatic and soil environments, may persist under certain conditions
Mobility in Soil: Moderate for aromatic compounds, may leach into groundwater if released
Bioaccumulative Potential: Low to moderate for small organisms
Other Adverse Effects: Not likely to ozone layer, but restrict release to waterways and soils for public and environmental safety
Waste Disposal Methods: Treat as hazardous waste in accordance with federal, state, and local regulations, incineration preferred with proper controls, do not dispose in ordinary trash, sewer, or environment
Container Disposal: Triple rinse empty containers, puncture or crush to prevent reuse, send to licensed hazardous waste facility
Labeling for Disposal: Label as hazardous, note specific compound and hazard class
Special Precautions: Notify regulatory authorities for significant spills or uncontrolled release
Other Information: Do not mix waste streams, segregate for disposal
UN Number: UN2811
UN Proper Shipping Name: Toxic solid, organic, n.o.s. (o-Quinone)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Labels Required: Toxics, environmental hazard (as applicable)
Marine Pollutant: Yes
Special Precautions: Protect from heat, moisture, rough handling, ensure packaging meets international transport codes
Regulatory Transport Information: Check DOT, IATA, IMDG standards for latest transport guidance
OSHA: Subject to OSHA regulations regarding hazardous chemicals
TSCA: Listed in US Toxic Substances Control Act Inventory
REACH: Not registered for general European industrial use; check for substance authorization under ECHA
SARA Title III: Not currently listed as a reportable hazardous substance
California Proposition 65: Not listed, but verify current updates
Other National Regulation: Compliance required with local, regional, and national health, safety, and environmental protection regulations
Labeling Requirements: Use GHS-compliant safety graphics and hazard statements for both user and emergency responder awareness
