Chemical Name: 2,6-Di-Tert-Butylphenol
Synonyms: 2,6-Bis(1,1-dimethylethyl)phenol, DTBP
CAS Number: 128-39-2
Molecular Formula: C14H22O
Recommended Use: Antioxidant in fuels, lubricants and polymers; stabilizer in plastics and rubbers
Restrictions: Not for food or pharmaceutical use
Supplier Contact: Supplier name, address, emergency contact number
GHS Classification: Skin Irritation (Category 2), Eye Irritation (Category 2A), Chronic Aquatic Toxicity (Category 2)
Pictograms: Exclamation Mark, Environment
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation. Toxic to aquatic life with long lasting effects.
Precautionary Statements: Avoid inhalation; wash exposed skin thoroughly after handling; use protective equipment; prevent release to the environment
Chemical: 2,6-Di-Tert-Butylphenol
Concentration: ≥ 98% by weight
Impurities: Trace amounts of related phenolic compounds
Inhalation: Move person to fresh air. Provide oxygen if breathing becomes difficult. Seek medical advice if symptoms persist.
Skin Contact: Wash skin with water and mild soap for 15 minutes. Remove contaminated clothing and shoes. Seek medical attention if irritation continues.
Eye Contact: Flush eyes with running water for at least 15 minutes, keeping eyelids open. Get medical attention.
Ingestion: Rinse mouth with water; do not induce vomiting. Get prompt medical attention.
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Hazards from Combustion: Dense smoke, carbon monoxide and dioxide, possible phenolic vapors
Specific Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Firefighting Advice: Containers exposed to fire should be cooled with water. Vapors may travel to ignition sources.
Personal Precautions: Wear gloves, goggles and appropriate protective clothing. Avoid breathing dust.
Environmental Precautions: Contain spillage to prevent entry into waterways or drains. Notify relevant authorities if environmental contamination occurs.
Cleanup Methods: Absorb spill with inert material (sand, earth). Collect in a chemical waste container. Wash spill area thoroughly after pickup.
Handling: Work in a well-ventilated area. Minimize dust generation. Avoid contact with skin, eyes and clothing.
Storage: Keep container tightly closed in a cool, dry, well-ventilated place away from sources of ignition, heat, acids, and oxidizers.
Storage Incompatibilities: Strong acids, oxidizers, reducing agents
Exposure Limits: No occupational exposure limits established. Handle as a nuisance dust.
Engineering Controls: Use local exhaust ventilation or process enclosures.
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, lab coat or apron. Use NIOSH-approved respirators if airborne concentration exceeds safe limits.
Appearance: White to yellowish crystalline powder
Odor: Phenolic, sharp
Melting Point: 35-41 °C
Boiling Point: 253-257 °C
Solubility: Slightly soluble in water; soluble in organic solvents like ethanol, benzene
Vapor Pressure: Negligible at room temperature
Density: 1.06 g/cm3 at 20 °C
pH: Not applicable
Partition coefficient (log P): 4.5
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Not reactive under normal processing
Conditions to Avoid: High temperatures, open flames, direct sunlight
Incompatible Materials: Strong acids, strong oxidizing agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, phenolic vapors
Polymerization: Will not occur
Acute Toxicity: Oral (rat) LD50 > 2,000 mg/kg
Skin Corrosion/Irritation: May cause moderate irritation with prolonged contact
Eye Damage/Irritation: Causes eye irritation
Respiratory: Prolonged inhalation of dust may cause respiratory irritation
Sensitization: Not classified as a sensitizer
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, OSHA
Mutagenicity: No evidence of mutagenic effects in animal studies
Other Effects: Nausea, headache, and dizziness have been reported in poorly ventilated areas
Aquatic Toxicity: Harmful to aquatic organisms; may cause long-term adverse effects
Persistence and Degradability: Slowly biodegradable; persists in soil and water
Bioaccumulation Potential: Potential for bioaccumulation due to high log P value
Mobility in Soil: Low mobility, likely to adsorb to soil particles
Other Adverse Effects: No ozone depletion, global warming or photochemical ozone creation issues directly linked
Reuse or Recycling: Preferred methods wherever practical
Disposal Methods: Dispose of via licensed waste disposal contractor; incineration preferred over landfill
Contaminated Packaging: Rinse containers well before disposal, or offer for recycling as appropriate. Follow local, state, and national guidelines.
UN Number: Not assigned
Proper Shipping Name: Not regulated for transport
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Marine Pollutant: Yes
Special Precautions: Avoid accidental release during loading or transport
TSCA: Listed
EINECS: 204-884-0
REACH Registration: Registered substance in EU
SARA Title III: Not listed under Sections 302, 304, or 313
California Proposition 65: Not listed
Canada (DSL/NDSL): Listed on DSL
