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Name: 1,2-Diethylbenzene
Chemical Formula: C10H14
Common Uses: Solvent in laboratories, intermediate in organic synthesis, additive in petroleum products
Appearance: Clear, colorless liquid
Odor: Distinct aromatic scent, similar to other alkyl benzenes
Molecular Weight: 134.22 g/mol
Boiling Point: About 183°C
Melting Point: Below room temperature
Solubility: Insoluble in water, mixes well with organic solvents such as ether and alcohol
Main Hazards: Flammable liquid and vapor, respiratory tract irritation, skin and eye irritation
Health Hazards: Inhalation causes dizziness and headache, skin contact can cause redness, eye exposure brings burning and watering, accidental ingestion leads to nausea
Fire Hazards: Vapor forms explosive mixtures with air, dense vapor can travel along ground and ignite from a distance
Environmental Hazards: Harmful to aquatic life, may cause long-lasting effects in the environment
Chronic Effects: Prolonged exposure can produce liver and kidney strain, repeatedly inhaling high concentrations may upset the nervous system
Main Ingredient: 1,2-Diethylbenzene (CAS 135-01-3), typically present in pure form
Possible Impurities: Trace amounts of other ethylbenzenes, xylene, residual solvents from production
Inhalation: Move to fresh air, keep at rest, loosen clothing, seek medical help if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek medical help for ongoing irritation
Eye Contact: Rinse eyes gently with water for several minutes, remove contact lenses if present, get medical advice if irritation continues
Ingestion: Rinse mouth, do not induce vomiting, seek medical attention immediately
Extinguishing Media: Use foam, dry chemical, or carbon dioxide for small fires, water spray for cooling containers
Unsuitable Media: Straight water streams spread the fire risk
Special Hazards: Vapors heavier than air can spread and flashback, thermal decomposition produces toxic gases such as carbon monoxide
Protective Equipment: Firefighters use self-contained breathing apparatus, full protective gear
Personal Precautions: Evacuate unnecessary personnel, ventilate area, remove ignition sources
Spill Clean-Up: Absorb spill with inert material, keep away from drains or open water, collect in sealed containers for disposal
Environmental Precautions: Avoid entry into waterways or soil, report large spills to local authorities
Handling: Use in well-ventilated spaces, avoid breathing vapor or mist, keep away from sparks and flames, ground all containers and transfer equipment, wear appropriate gloves and goggles
Storage: Store tightly closed in cool, dry, well-ventilated area, keep containers upright, separated from incompatible substances such as oxidizers and acids
Ventilation: Use local exhaust or general ventilation to control airborne concentrations
Personal Protection: Wear chemical-resistant gloves, splash-proof goggles, flame-retardant lab coats
Respiratory Protection: NIOSH-approved respirator recommended in areas with poor ventilation
Hygiene Measures: Wash hands before eating, drinking, or smoking, avoid prolonged or repeated contact
Workplace Controls: Eyewash stations, safety showers in work area
Physical State: Liquid
Color: Colorless
Odor: Aromatic, sweet
Boiling Range: 183–184°C
Melting Range: About -35°C
Flash Point: 63–70°C (closed cup)
Vapor Pressure: Moderate at room temperature
Density: Roughly 0.87 g/cm³
Viscosity: Low
Water Solubility: Negligible
Partition Coefficient (log Kow): Above 3
Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: Heat, open flames, sparks, static discharge
Incompatible Materials: Strong oxidizers, strong acids, halogens
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, possible formation of toxic products at high temperature
Polymerization: Not expected to occur
Acute Effects: Inhalation causes drowsiness, headache, dry throat, skin contact produces irritation or redness, accidental ingestion causes stomach upset and dizziness
Chronic Effects: Prolonged or repeated exposure can bring liver effects, kidney burdens, central nervous system depression
Carcinogenicity: No clear evidence connecting 1,2-diethylbenzene to cancer in humans, similar compounds mark a need for caution
Reproductive Effects: Not well studied, limited data available
Sensitization: Unlikely, but irritation from repeated skin contact
Aquatic Toxicity: Toxic to aquatic life, fish and invertebrates at low concentrations
Persistence and Degradability: Persists in soil, low to moderate biodegradability
Bioaccumulation: Likely to build up in organisms, high log Kow value
Mobility in Soil: Moves slowly through soil, may contaminate groundwater
Disposal Methods: Collect and dispose of in accordance with local, regional, and national regulations, do not pour down drain
Contaminated Containers: Empty containers may contain hazardous residue, handle as hazardous waste
Safe Disposal: Incineration in approved chemical waste facility
UN Number: Classified as hazardous for transport
Transport Hazards: Flammable liquid, label and pack accordingly
Precautions: Ensure containers are securely sealed, protected from physical damage, kept away from sources of ignition
Chemical Inventory Status: Listed in most chemical regulatory inventories where industrial chemicals are tracked
Regulation: Subject to workplace safety laws regarding flammable liquids, routine labeling, and storage guidelines
Worker Protection: Mandated safety training, personal protective equipment, exposure monitoring
Environmental Laws: Restrictions on release to waterways, requirements for accidental spill response
