Product Name: P-Ethylphenol
Chemical Formula: C8H10O
CAS Number: 123-07-9
Synonyms: 4-Ethylphenol, 1-hydroxy-4-ethylbenzene
Recommended Use: Intermediate in organic synthesis, flavoring agent, and sometimes found in food and beverage aroma analysis
Manufacturer Information: Contact details on shipping documents or local supplier
Emergency Contact: Refer to local poison control center or chemical safety officer
Classification: Flammable liquid, Skin irritant, Eye irritant, Harmful if swallowed
Signal Word: Warning
Hazard Statements: Causes skin and serious eye irritation, toxic to aquatic organisms, flammable, vapor can irritate respiratory system. Prolonged or repeated exposure increases risk of health issues.
Pictograms: Flame, Exclamation mark
Precautionary Statements: Keep away from heat, use protective clothing, avoid discharge into the environment, do not breathe vapor, wash hands after use
Substance: P-Ethylphenol
Content: ≥99% by weight
Impurities: Trace amounts of o-ethylphenol, m-ethylphenol, and other substituted phenols may exist depending on origin
Molecular Weight: 122.16 g/mol
EC Number: 204-602-6
Inhalation: Move person to fresh air, support breathing. If symptoms persist, seek medical advice promptly.
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water, wash for at least 15 minutes, consult a physician if irritation continues.
Eye Contact: Rinse cautiously with water for 15 minutes, lift eyelids to ensure thorough flushing, get medical help if discomfort or redness lasts.
Ingestion: Rinse mouth, never give anything by mouth to an unconscious person, seek immediate medical attention, do not induce vomiting.
Suitable Extinguishing Media: Dry chemical powder, alcohol-resistant foam, carbon dioxide, water spray
Specific Hazards: Combustion releases irritating and toxic fumes, including carbon monoxide and carbon dioxide, phenolic vapors may aggravate fire conditions
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective clothing recommended
Advice for Firefighters: Keep containers cool using water spray to prevent pressure build-up and explosion, contain fire-fighting run-off, avoid breathing smoke
Flash Point: Around 83°C (181°F)
Personal Precautions: Remove ignition sources, ventilate area, use protective equipment to avoid skin and eye exposure
Environmental Precautions: Prevent entry into drains, surface water, or soil, inform relevant authorities if contamination occurs
Methods for Containment and Cleaning Up: Absorb with earth, sand, or other non-combustible material, shovel into suitable container for disposal, use non-sparking tools, ventilate area thoroughly after cleanup
Reference for Safe Practices: Consult chemical hygiene officer or refer to industrial safety guidance for further risk assessment
Handling: Keep away from heat, sparks, open flames, and hot surfaces. Ground containers during transfer, avoid inhaling vapors or contact with skin, use only with adequate ventilation, wear appropriate protective gear
Storage Conditions: Store in a tightly sealed container, in a cool, dry, and well-ventilated area, segregate from strong oxidizers, acids, keep away from direct sunlight
Incompatible Materials: Strong acids, oxidizing agents, bases, reducing agents
Storage Class: Flammable liquids
Occupational Exposure Limits: No OSHA PEL established, ACGIH limit for phenolic compounds may provide guidance, follow local regulations
Engineering Controls: Use local exhaust ventilation to limit vapor build-up, safety showers and eye wash stations should be readily accessible
Personal Protective Equipment: Chemical resistant gloves (nitrile or neoprene), safety goggles, protective lab coat, closed shoes, face shield for large volume work
Respiratory Protection: Use organic vapor cartridge respirator if ventilation is inadequate, seek professional fit testing
Hygiene Measures: Wash hands before breaks and at end of work, do not eat or drink around chemical
Appearance: Colorless to pale yellow liquid
Odor: Phenolic, tar-like
Melting Point: 8°C
Boiling Point: 218°C
Flash Point: 83°C (closed cup)
Solubility: Slightly soluble in water, easily soluble in alcohol, ether, benzene
Vapor Pressure: Low at room temperature
Density: 0.96 g/cm³ at 20°C
pH: Not applicable
Partition Coefficient (log Pow): 2.45
Autoignition Temperature: 535°C
Viscosity: Not available
Chemical Stability: Stable under standard conditions if stored correctly
Reactivity: Reacts with strong oxidizing agents, acids, bases; can generate heat and hazardous byproducts
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, phenolic vapors
Polymerization: Not known to polymerize under normal handling
Conditions to Avoid: Sources of heat, sparks, open flame, direct sunlight, incompatible substances
Corrosivity: Not corrosive under normal conditions
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Acute Toxicity: Oral LD50 (rat): about 1210 mg/kg, Inhalation LC50 (rat): not tested, Dermal: irritating
Irritation: May cause burning sensation, redness, prolonged exposure can worsen symptoms
Sensitization: Not documented but related phenols can induce skin sensitization
Chronic Exposure: Prolonged contact may cause dermatitis, potential systemic toxicity with repeated exposure
Carcinogenicity: Not listed by NTP, IARC, or OSHA as carcinogenic
Other Effects: Headache, dizziness, drowsiness reported with overexposure to vapor
Aquatic Toxicity: Toxic to aquatic organisms, possible risk of bioaccumulation in fish
Persistence/Degradability: Moderately degradable under aerobic environmental conditions
Mobility in Soil: Low mobility, likely to bind to soil constituents
Potential Environmental Impact: Discharge can affect water quality, aquatic toxicity poses risk for local biota
BIOACCUMULATION: Moderate potential based on log Pow value
Method of Disposal: Incinerate in approved facility or send to licensed chemical disposal contractor, dispose of in compliance with local, regional, national, and international regulations
Contaminated Packaging: Empty containers must be treated as hazardous, rinse and dispose as chemical waste
Do Not: Allow entry into drains, surface water, or soil. Do not mix with household waste
Disposal Reference: Follow guidance found in 40 CFR parts 261 and 262 (USA) or applicable regional laws
UN Number: 2430
Proper Shipping Name: P-Ethylphenol
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Label Requirements: Toxic, Flammable
Special Precautions: Secure upright, avoid transport with foodstuff, segregate from oxidizers
Regulatory References: Comply with DOT, IMDG, ICAO/IATA regulations depending on jurisdiction
Road/Rail Restrictions: Check local transport authorities for any special routing requirements
TSCA Status: Listed on United States Toxic Substances Control Act inventory
EINECS: Registered in European Chemical Substances Information System
OSHA Classification: Hazardous chemical under OSHA hazard communication rules
SARA Section 313: Not listed
California Proposition 65: Not listed as a known carcinogen or reproductive toxin
WHMIS Classification (Canada): D2B (Toxic)
Note: Follow workplace hazard communication standards, use up-to-date labeling and documentation, consult safety officer for changes in standing regulatory status
