Chemical Name: Quinone
SYNONYMS: Benzoquinone, 1,4-Benzoquinone, p-Benzoquinone
CAS Number: 106-51-4
Molecular Formula: C6H4O2
Recommended Use: Laboratory chemicals, organic synthesis, dye manufacturing
Manufacturer Information: Specific to producer; includes address, emergency phone numbers
Product Codes: Based on supplier, often includes unique identifiers for product tracking
Emergency Overview: Yellow crystalline solid, irritating odor
Hazard Statements: Harmful if inhaled, causes skin burns and eye damage, toxic to aquatic life
GHS Classification: Acute toxicity (Category 3, oral and inhalation), Skin corrosion (Category 1B), Eye damage (Category 1), Aquatic acute toxicity (Category 1)
Pictograms: Corrosive, acute toxicity, environmental hazard
Signal Word: Danger
Precautionary Statements: Avoid breathing dust, wash skin thoroughly after handling, prevent release to environment
Chemical Identity: 1,4-Benzoquinone
Concentration: 98%-100% pure by weight (based on supplier data)
Impurities: Hydroquinone (may appear from oxidation/reduction), minor organic contaminants from production processes
Mixtures: No relevant mixtures for pure substance; commercial formulations noted on individual product documentation
Inhalation: Move person to fresh air promptly, keep warm, seek immediate medical attention
Skin Contact: Remove contaminated clothing, rinse affected area with plenty of water for at least 15 minutes, medical evaluation recommended
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if easy, continue rinsing, urgent ophthalmologist consultation recommended
Ingestion: Rinse mouth, do not induce vomiting, seek medical attention
Most Important Symptoms: Respiratory irritation, skin burns, eye damage, coughing, shortness of breath, dizziness
Suitable Extinguishing Media: Dry powder, carbon dioxide, foam; water spray for cooling
Specific Hazards: Emits toxic fumes under fire conditions including carbon monoxide and dioxide
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus
Special Procedures: Avoid breathing smoke, evacuate area if needed, prevent run-off from entering drains
Personal Precautions: Wear chemical-resistant gloves and goggles, use respiratory protection if ventilation is inadequate
Environmental Precautions: Prevent entry into waterways, soil, and drains
Clean-up Methods: Absorb spillage with inert material such as sand or earth, collect in container for disposal, ventilate area and wash surfaces with water after clean-up
Handling: Use only in well-ventilated areas, avoid contact with skin, eyes, and clothing, practice good hygiene
Storage: Store in tightly closed container, in a cool, dry, ventilated area away from incompatible substances like strong acids, bases, and reducing agents
Incompatibilities: Do not store near combustibles, acids, alkali, or strong oxidizers
Other Precautions: Keep away from food and beverages, restrict access to authorized personnel
Exposure Limits: OSHA PEL: 0.1 ppm (TWA), ACGIH TLV: 0.1 ppm (TWA)
Engineering Controls: Use fume hood, local exhaust ventilation
Personal Protective Equipment: Protective gloves, safety goggles or a face shield, lab coats, and proper respiratory equipment when exposure risk exists
Hygiene Measures: Wash hands before breaks and end of work, do not eat or drink in working area
Appearance: Yellow crystalline solid
Odor: Pungent, chlorine-like
Odor Threshold: Detectable at low concentrations
pH: Not applicable (solid), slightly acidic aqueous solutions
Melting Point: 115-116°C
Boiling Point: 294°C (decomposes)
Flash Point: 79°C (closed cup)
Flammability: Moderate (can ignite if heated)
Vapor Pressure: 5.3 mm Hg at 25°C
Relative Density: 1.32 g/cm³
Solubility: Slightly soluble in water, readily soluble in alcohol, ether, and benzene
Partition Coefficient (log Pow): 0.2
Decomposition Temperature: Begins with heating above 200°C
Viscosity: Not applicable (solid)
Chemical Stability: Stable under normal storage and handling conditions
Possible Hazardous Reactions: Can react violently with strong reducing agents or acids
Conditions to Avoid: Excessive heat, moisture, open flame
Incompatible Materials: Strong acids, alkalis, reducing agents
Hazardous Decomposition Products: Releases toxic fumes of carbon oxides on combustion or decomposition
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity (Oral, Rat): LD50: 130 mg/kg
Acute Toxicity (Inhalation, Rat): LC50: 100 mg/m³ (4 hrs)
Skin Corrosion/Irritation: Causes severe burns
Serious Eye Damage/Irritation: Causes eye damage
Respiratory Sensitizer: May cause respiratory irritation
Chronic Effects: Prolonged exposure may lead to central nervous system effects, kidney or liver damage
Carcinogenicity: Not classified as carcinogen by IARC, NTP or OSHA
Other Effects: No evidence of reproductive toxicity in animal studies
Ecotoxicity: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Partially persistent in soil and water, biodegradation occurs over time
Bioaccumulative Potential: Low, based on log Pow
Mobility in Soil: Moderate mobility due to water solubility
Other Adverse Effects: Not expected to produce significant ozone depletion or photochemical reactions in normal environmental conditions
Waste Treatment Methods: Dispose as hazardous waste in accordance with local, regional, and national regulations
Additional Information: Do not release to the environment, avoid disposal via sewage systems, contaminated packaging must also be disposed as hazardous waste
UN Number: UN1673
UN Proper Shipping Name: Quinone
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Precautions for User: Wear protective equipment during handling, ensure packaging is secure, follow applicable transport regulations for shipping chemicals
U.S. Regulations: Subject to OSHA Hazard Communication Standard, SARA Title III Section 313, TSCA inventory listed
EU Regulations: CLP Regulation (EC 1272/2008) applies, REACH registered, considered a Substance of Very High Concern (SVHC) in some uses
Label Requirements: GHS pictograms, hazard statements, precautionary statements
Other International Regulations: Valid under Canada WHMIS, Australian SUSMP, Japanese PRTR regulations
Workplace Restrictions: Permissible exposure limits enforced by employers, regular training required about storage and handling
