Product Name: p-Diethylbenzene
Chemical Formula: C10H14
CAS Number: 105-05-5
Synonyms: 1,4-Diethylbenzene; para-Diethylbenzene
Recommended Use: Laboratory chemical, chemical manufacturing
Manufacturer/Supplier: Refer to supplier details on container label
Emergency Contact: CHEMTREC 1-800-424-9300, local poison control center
GHS Classification: Flammable Liquids (Category 3), Acute Toxicity - Oral (Category 4), Skin Irritation (Category 2), Eye Irritation (Category 2A)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor; harmful if swallowed; causes skin and eye irritation
Pictograms: Flame, exclamation mark
Precautionary Statements: Keep away from heat, sparks, open flames; wash hands thoroughly after handling; wear eye and face protection; avoid breathing vapors
Chemical Name: p-Diethylbenzene
Concentration: 99% or higher by weight
Impurities/Additives: Typically less than 1%, details dependent on supplier
Chemical Family: Aromatic hydrocarbon
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; continue rinsing; seek medical attention if irritation persists
Skin Contact: Remove contaminated clothing; wash skin with plenty of soap and water; medical attention required for persistent irritation
Inhalation: Move to fresh air immediately; provide artificial respiration if person is not breathing; seek immediate medical help
Ingestion: Do not induce vomiting; rinse mouth with water; call poison center or healthcare provider right away; never give anything by mouth to an unconscious person
Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, water spray (do not direct stream at burning liquid)
Unsuitable Media: Direct water jets
Fire Hazards: Vapors may form explosive mixtures with air; container may explode when heated
Special Protective Equipment: Wear self-contained breathing apparatus and full protective gear; spray containers to keep cool
Specific Hazards: Carbon monoxide, carbon dioxide, potentially irritating and toxic fumes produced under fire conditions
Personal Protection: Evacuate unnecessary personnel, wear appropriate PPE (gloves, goggles, respirator if needed)
Spill Response: Remove all sources of ignition, ventilate area; absorb with inert material (sand, earth); collect and arrange disposal without raising dust
Environmental Precautions: Prevent entry into sewers, groundwater, surface water; call emergency services for large spills
Decontamination: Wash spill area with water after material pick-up is complete
Handling: Handle away from heat and ignition sources; avoid breathing vapors; use only in well-ventilated areas; avoid personal contact
Storage Conditions: Store in cool, dry, ventilated space; keep container tightly closed when not in use; segregate from oxidizers, acids, and alkalis
Incompatible Materials: Strong oxidizers, acids, alkali metals; keep away from food and drink
Engineering Controls: Local exhaust ventilation recommended; use explosion-proof equipment
Personal Protection: Chemical-resistant gloves (nitrile); safety goggles; flame-retardant, anti-static protective clothing
Respiratory Protection: NIOSH-approved air-purifying respirator if exposure limits exceeded
Exposure Limits: No established OSHA PEL or ACGIH TLV; minimize exposure as much as possible
Hygiene Measures: Wash hands after use, change contaminated clothing
Appearance: Colorless to pale yellow clear liquid
Odor: Aromatic, sweet
Odor Threshold: Not established
pH: Not applicable
Melting Point: -25°C
Boiling Point: 183°C
Flash Point: 66°C (closed cup)
Evaporation Rate: No reliable data
Flammability: Flammable liquid
Upper/Lower Explosive Limits: 0.9% / 6.7% (v/v in air)
Vapor Pressure: 0.35 mmHg at 25°C
Vapor Density: 4.6 (air = 1)
Relative Density: 0.87 g/cm³
Solubility in Water: Insoluble
Partition Coefficient (log Kow): 4.1
Auto-ignition Temperature: 460°C
Decomposition Temperature: Not established
Viscosity: Not established
Chemical Stability: Stable under normal temperatures and pressures
Reactivity: Reacts strongly with oxidizing agents
Conditions to Avoid: Heat, flames, sources of ignition, exposure to strong oxidizers
Hazardous Decomposition: May generate hazardous carbon oxides and flammable vapors
Polymerization: Not known to polymerize under recommended conditions
Acute Toxicity: Oral LD50 (rat) ~ 2520 mg/kg; inhalation data not well defined
Skin Irritation: May cause redness, dryness, cracking
Eye Irritation: May induce redness, tearing, discomfort
Sensitization: No known data on allergic sensitization
Chronic Toxicity: Repeated exposure may damage central nervous system and liver
Carcinogenicity: No IARC or NTP evidence for carcinogenic potential
Mutagenicity and Reproductive Toxicity: Not identified as mutagenic or reproductive hazard in standard tests
Ecotoxicity: Toxic to aquatic organisms under laboratory conditions; LC50 (fish, 96h): around 3.6 mg/L
Persistence and Degradability: Readily biodegradable in soil and water
Bioaccumulation: High potential for bioaccumulation (log Kow > 4)
Mobility in Soil: Low mobility due to low solubility; tends to bind to organic matter
Other Adverse Effects: May cause long-term harm to aquatic environments with repeated exposure
Waste Disposal: Incinerate at approved chemical waste facility; follow all federal, state, and local regulations
Container Disposal: Rinse thoroughly and dispose of as hazardous waste
Precautions for Disposal: Do not pour into sewer, soil, or natural water systems; label all waste containers clearly
Recycling: Not recommended due to chemical hazards
UN Number: 1175
UN Proper Shipping Name: Diethylbenzene
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Special Precautions: Keep away from heat, direct sunlight, and incompatible materials during transit; use DOT-approved containers
Marine Pollutant: Not designated as a marine pollutant by current regulations; avoid unintentional releases into waterways
TSCA Status: Listed
SARA 313: Not subject to reporting under Section 313
RCRA Status: Classified as hazardous waste under appropriate listings
EPA CERCLA: Not assigned a reportable quantity
OSHA: Hazardous by definition in Hazard Communication Standard (29 CFR 1910.1200)
Other Regulations: Check with local, state, and federal agencies for possible additional restrictions and requirements; not listed on California Prop 65 as a known carcinogen or reproductive toxin
