Product Name: 3,4-Xylenol
Chemical Name: 3,4-Dimethylphenol
Synonyms: 3,4-Dimethylphenol, 1-Hydroxy-3,4-xylene
CAS Number: 95-65-8
Recommended Use: Used in chemical synthesis, disinfectants, resins
Supplier Details: Manufacturer details required for further regulatory use
Emergency Phone Number: National Poisons Centre or designated emergency contact in workplace safety instructions
Classification: Flammable liquid, Toxic on ingestion, skin and eye irritant, Harmful by inhalation
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, Harmful if swallowed or inhaled, May cause respiratory irritation
Symbols: Corrosive, Exclamation Mark, Health Hazard
Precautionary Statements: Avoid breathing vapour or mist, Wear protective gear, Use only in well-ventilated areas, Store locked up, Immediately flush eyes and skin with water if exposed
Health Effects: Exposure can bring nausea, dizziness, burning sensation on contact, possible long-term liver and kidney impacts
Chemical Identity: 3,4-Xylenol
Concentration: 98-100%
Molecular Formula: C8H10O
Molecular Weight: 122.17 g/mol
Impurities: Typical trace amounts of other xylenol isomers under 2%
Ingredient Classification: Essential component for reactivity and hazard determination, non-hazardous diluents rare
Eye Contact: Rinse immediately with running water for at least 15 minutes, keep eyelids open, remove contact lenses if present
Skin Contact: Remove contaminated clothing, wash skin with soap and water for several minutes, seek immediate medical attention
Inhalation: Move to fresh air, support breathing as needed, seek immediate medical attention if symptoms like shortness of breath occur
Ingestion: Rinse mouth, DO NOT induce vomiting, give water only if victim is conscious, seek immediate medical attention
Notes for Doctor: Treat symptomatically and monitor respiratory and kidney function
Suitable Extinguishing Media: Foam, dry chemical, CO2, use water spray for cooling containers
Specific Hazards: Vapours may form explosive mixtures with air, combustion produces toxic fumes including carbon monoxide and phenol derivatives
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, protective suit resistant to chemical splashes
Special Procedures: Remove product from fire area if safety allows, dike run-off water to prevent environmental contamination
Personal Precautions: Wear protective clothing, gloves, goggles, and mask, avoid breathing vapour
Environmental Precautions: Prevent entry to waterways, sewers, soil, and drains, notify authorities if large leak occurs
Clean-Up Methods: Absorb with sand or non-combustible material, place in chemical waste container for disposal
Decontamination: Wash spill site after material pick-up, ventilate area well
Disposal: Follow local hazardous waste protocols for chemical disposal, avoid uncontrolled releases
Safe Handling Practices: Handle only with adequate ventilation, avoid skin and eye contact, do not breathe vapour
Storage Conditions: Store in tightly sealed containers in cool, dry, well-ventilated place away from ignition sources, acids, and oxidizers
Incompatible Materials: Strong oxidizers, strong acids, strong bases, avoid storing with food or animal feed
Transfer Recommendations: Use chemical-resistant containers, grounding and bonding measures to prevent static discharge
Exposure Limits: No OSHA PEL or ACGIH TLV specified, workplace hygiene controls fundamental
Engineering Measures: Use fume hoods, local exhaust ventilation, avoid accumulation of vapours
Personal Protective Equipment: Chemical splash goggles, impervious gloves, laboratory coat or apron, use respiratory protection if vapour risk exceeds controls
Hygiene Measures: Avoid eating, drinking, smoking in work area, wash hands after handling, safely remove contaminated clothing
Appearance: Pale yellow to off-white crystalline solid
Odour: Distinct phenolic, medicinal-like odour
Odour Threshold: Detectable in low concentrations
pH (1% soln): Slightly acidic
Melting Point: 110-114°C
Boiling Point: 243°C
Flash Point: 110°C (closed cup)
Evaporation Rate: Slow
Flammability: Combustible
Vapour Pressure: Low at room temperature
Vapour Density: Greater than air
Relative Density: 1.06–1.10 g/cm³
Solubility: Slightly soluble in water, readily soluble in alcohol, ether, and organic solvents
Partition coefficient (log Pow): 2.18
Auto-ignition Temperature: ~550°C
Stability: Chemically stable under recommended storage conditions
Conditions to Avoid: Heat, sparks, open flames, exposure to incompatible substances
Incompatible Materials: Strong oxidizers, strong acids, bases, halogenating agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, phenolic fumes
Hazardous Polymerization: No polymerization risk encountered in industrial practice
Acute Toxicity: Harmful by ingestion, inhalation, and contact, oral LD50 (rat): 800 mg/kg
Skin Corrosion/Irritation: Causes severe irritation, possible chemical burns with extended exposure
Serious Eye Damage/Irritation: Causes eye burns, risk of permanent damage if not treated promptly
Respiratory or Skin Sensitization: May trigger allergic skin response
Chronic Exposure: Prolonged contact can damage kidneys, liver, and nervous system, sensitizing for some individuals
Symptoms of Exposure: Nausea, headache, respiratory tract irritation, drowsiness from vapour
Ecotoxicity: Toxic to aquatic organisms, may cause long-term effects in aquatic environments
Mobility: Low water solubility reduces migration, potential for bioaccumulation in aquatic life
Persistence and Degradability: Slowly biodegradable by typical environmental processes, can linger in sediment or water
Bioaccumulative Potential: Moderate risk based on log Pow; fish and invertebrates at higher risk
Other Adverse Effects: Do not permit product to reach soil, waterways, stormwater, or ground
Recommendations: Avoid uncontrolled discharge, follow regulatory guidelines for chemical containment and clean-up
Disposal Methods: Send to licensed chemical waste disposal facility, incineration recommended if compatible with local regulations
Product Waste: Do not dispose in regular trash, sink, or municipal sewer
Container Handling: Triple rinse all containers, remove readable labeling, comply with regulations for hazardous waste
Special Precautions: Notify waste handler of hazardous nature, avoid aerosolization, and vapour release during disposal
Regulatory Compliance: Follow local, regional, and national rules for hazardous waste handling and recordkeeping
UN Number: 2430
UN Proper Shipping Name: 3,4-Xylenol
Transport Hazard Class: 6.1 (Toxic Substance)
Packing Group: III
Labels: Toxic, IRRITANT, Flammable if shipped in quantities exceeding limits
Special Transport Precautions: Do not transport with acids, oxidizers, or foodstuffs, keep containers upright, well-sealed, and away from heat
International Transport Rules: IMDG, IATA, ADR regulations apply; carriers must be informed of hazards before shipment
OSHA Status: Classified hazardous according to OSHA Hazard Communication Standard
TSCA: Listed on United States TSCA Inventory
WHMIS Classification: D1B (Toxic), D2B (Irritant), B3 (Combustible)
SARA Title III: Requires reporting if stored in significant quantities
RCRA Waste Code: U181 if discarded as pure substance
EU Regulations: EC Classification: Harmful (Xn), Danger symbol, R and S phrases apply
Other Regulatory Information: State-level chemical inventories and worker protection regulations may add labeling, handling, and notification requirements beyond federal law
