Product Name: O-Ethylphenol
Chemical Formula: C8H10O
Synonyms: 2-Ethylphenol, ortho-Ethylphenol
CAS Number: 90-00-6
Recommended Use: Laboratory reagent, intermediate for organic synthesis, fragrance ingredient
Supplier Details: Emergency hotline, address, phone number, and relevant contact details for reporting incidents, purchasing data, follow-up testing, and consultation
Emergency Telephone Number: Refer to local guidelines or company records for chemical emergencies
Classification: Flammable liquid (Category 3), Acute toxicity (oral, Category 4), Skin irritation (Category 2), Serious eye irritation (Category 2A)
Signal Word: Warning
Hazard Statements: Combustible liquid. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation.
Pictograms: Exclamation mark, Flame
Precautionary Statements: Keep away from heat and open flame. Avoid breathing vapors or mist. Wear protective gloves, clothing, and eye protection. Wash hands thoroughly after handling. If swallowed, rinse mouth and seek medical advice. If on skin, wash with plenty of soap and water. Use only in well-ventilated areas.
Chemical Name: O-Ethylphenol
CAS Number: 90-00-6
Concentration: 98-100%
Impurities/Additives: Trace residual solvents or by-products below 1% identified using laboratory analysis
EINECS Number: 201-966-8
Molecular Weight: 122.16 g/mol
Inhalation: Move person to fresh air, keep warm and at rest. Seek medical attention for persistent cough, dizziness, or breathing difficulties.
Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing and wash before reuse. Seek medical attention for redness, blistering, or persistent irritation.
Eye Contact: Rinse cautiously with water for several minutes, lifting upper and lower eyelids. Remove contact lenses if present and easy to do. Continue rinsing and seek immediate medical attention if irritation persists.
Ingestion: Do not induce vomiting. Rinse mouth thoroughly. Seek immediate medical attention, especially if feeling unwell or experiencing abdominal discomfort, dizziness, or vomiting.
Most Important Symptoms/Effects: Eye and skin irritation, respiratory discomfort, headache, dizziness
Notes to Physician: Treat symptomatically with attention to airway, breathing, and circulation. Monitor for signs of chemical pneumonitis in case of ingestion.
Suitable Extinguishing Media: Carbon dioxide (CO2), dry chemical, alcohol-resistant foam; avoid water jets
Unsuitable Extinguishing Media: Straight water stream
Specific Hazards: Vapors can form explosive mixtures with air. Hazardous combustion products may include carbon monoxide, carbon dioxide, and toxic phenolic vapors.
Protective Equipment for Firefighters: Full protective gear including self-contained breathing apparatus (SCBA). Remain upwind to avoid hazardous fumes. Keep containers cool with water spray away from runoff.
Special Precautions: Evacuate nearby areas if large fire is uncontrolled. Use caution to avoid spreading fire through runoff. Consider toxic combustion by-products when planning containment and rescue operations.
Personal Precautions: Restrict access to affected area. Use suitable protective equipment such as gloves, eye/face protection, and chemical-resistant clothing. Ventilate area and avoid inhalation of vapor or fumes.
Environmental Precautions: Prevent spillage from entering drains, sewers, surface or groundwater. Notify appropriate environmental authorities if contamination occurs.
Methods for Cleanup: Absorb with inert material such as sand or diatomaceous earth. Sweep up and collect in suitable, labeled chemical waste container for disposal. Wash spill area with plenty of soap and water after cleaning.
Emergency Procedures: Evacuate personnel from unsafe zones. Ensure proper ventilation and monitor area for flammable vapor concentrations. Immediately notify safety officers for significant leaks or spills.
Precautions for Safe Handling: Work in well-ventilated space. Use spark-proof tools and wear anti-static footwear. Avoid contact with skin, eyes, and clothing. Do not breathe directly in vapor or mist. Keep away from sources of ignition and store away from incompatible chemicals such as strong oxidizers and acids.
Conditions for Safe Storage: Store in a tightly closed container in a cool, dry, well-ventilated area away from heat sources. Segregate from food and drink, and label containers carefully. Protect from direct sunlight and sources of ignition. Ensure storage area has appropriate spill containment and emergency response equipment.
Incompatibilities: Store away from oxidizing agents, acid chlorides, acid anhydrides, and strong bases. Keep container and storage location free of static charge buildup.
Control Parameters: Refer to local and national exposure limits if available. No OSHA PEL or ACGIH TLV listed for O-Ethylphenol, but minimize exposure as a precaution.
Engineering Controls: Use local exhaust ventilation or chemical fume hood to reduce airborne concentrations. Install safety showers and eyewash stations nearby.
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile, neoprene), safety goggles, splash-resistant lab coat, closed-toe shoes. Use face shield during large-scale handling.
Respiratory Protection: Inadequate ventilation may require a NIOSH-approved organic vapor respirator or supplied air respirator for spills and clean-up.
Hygiene Measures: Wash hands, forearms, and face after handling. Do not eat, drink, or smoke in chemical storage or use areas. Remove and wash contaminated clothing before reuse.
Appearance: Colorless to pale yellow liquid
Odor: Phenolic, sharp, distinctive
Odor Threshold: Not determined
pH: Not applicable (non-aqueous solution)
Melting Point/Freezing Point: -8°C
Boiling Point: 216°C
Flash Point: 89°C (closed cup)
Evaporation Rate: Not available
Flammability: Flammable liquid
Explosion Limits: Lower: 1.2% / Upper: 9.0% (estimated)
Vapor Pressure: 0.09 mmHg at 20°C
Vapor Density: 4.2 (air = 1)
Relative Density: 0.96 g/cm3 at 20°C
Solubility: Slightly soluble in water, soluble in most organic solvents
Partition Coefficient (log Pow): 2.4
Auto-Ignition Temperature: 470°C
Decomposition Temperature: Not determined
Viscosity: Not available
Chemical Stability: Remains stable under recommended storage conditions. Decomposes if exposed to high temperatures, flames, or incompatible substances.
Reactivity: Reacts vigorously with strong oxidizers, and can generate heat with acids or bases.
Conditions to Avoid: Heat, sparks, flames, electrostatic discharge, or long-term exposure to air/light.
Incompatible Materials: Strong oxidizing agents, acid chlorides, acid anhydrides, strong bases.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, phenolic compounds under fire conditions.
Acute Toxicity: LD50 oral (rat): 1140 mg/kg
Skin Corrosion/Irritation: Moderate irritant to skin on repeated or prolonged contact
Serious Eye Damage/Eye Irritation: Causes eye irritation, risk of conjunctivitis
Respiratory Sensitization: Inhalation of high concentrations can result in coughing, shortness of breath, and headache
Skin Sensitization: Prolonged or repeated contact may cause allergic skin response
Germ Cell Mutagenicity: No data available
Carcinogenicity: Not classified as a carcinogen by NTP, IARC, or OSHA
Reproductive Toxicity: No data found suggesting reproductive hazards
STOT—Single Exposure: May cause temporary central nervous system effects such as dizziness or drowsiness
STOT—Repeated Exposure: Repeated high exposures could damage the liver or kidneys
Aspiration Hazard: May present risk if swallowed and enters airways although not classified for aspiration toxicity
Symptoms/Effects: Redness, pain, blurred vision, respiratory irritation, nausea
Ecotoxicity: Hazardous to aquatic organisms; toxic to fish and daphnia at moderate concentrations
Persistence and Degradability: Breaks down slowly in the environment, expected to be biodegradable over time
Bioaccumulation Potential: Bioaccumulation may occur due to moderate partition coefficient (log Pow: 2.4)
Mobility in Soil: Moderate; weakly adsorbed to soil particles, may migrate to groundwater if released
Other Adverse Effects: Possible ozone formation in air due to photoreactive phenolic structure
Disposal to Waterways: Harmful to aquatic life, avoid discharge to natural water bodies
Waste Treatment Methods: Dispose through approved chemical waste facility.
Contaminated Packaging: Rinse thoroughly, triple-wash, then dispose or recycle according to local hazardous waste regulations
Disposal Precautions: Consult national or regional authority for guidance on disposal. Do not pour down drain, sewer, or release to environment.
Landfill/Incineration: Chemical incineration using properly licensed facility with afterburner and scrubber for phenolic emissions
Other Notes: Label waste clearly, maintaining safety for personnel involved in disposal chain
UN Number: UN 1993
Proper Shipping Name: Flammable liquid, n.o.s. (contains O-Ethylphenol)
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: III
Environmental Hazards: Marine pollutant, regulated cargo if transported in bulk
Special Precautions: Use dedicated transport containers and label appropriately. Avoid rough handling and minimize shipment during extreme heat.
IMDG Code: Classified as dangerous goods.
IATA/ICAO: Allowed with restrictions. Notify carriers prior to transport for compliance with all applicable regulations.
TSCA Status: Listed in the United States TSCA inventory
REACH Registration: Registered or exempted in the European Union
OSHA Hazards: Flammable liquid, skin irritant, acute toxicity hazard
Right-to-Know Listings: Listed in select states and international chemical inventories
SARA Title III (Sections 311/312): Fire hazard, acute health hazard
California Proposition 65: Not listed as a chemical known to cause cancer or reproductive toxicity
Other National Regulations: Check local legislation on workplace controls, labeling requirements, and emergency response commitments for specific locations
Labeling: Ensure all secondary containers bear hazard and identity information in compliance with GHS, OSHA, EU CLP, or appropriate country standards
