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Chemical Name: Terpineol
Chemical Formula: C10H18O
Common Names: α-Terpineol, Terpineol
CAS Number: 8000-41-7, 98-55-5 (for alpha-terpineol)
Appearance: Colorless to pale yellow liquid
Odor: Lilac or floral
GHS Classification: Skin irritation, Eye irritation, May cause respiratory tract irritation
Hazard Statements: Causes mild skin irritation, causes serious eye irritation, may cause drowsiness or dizziness from vapors at high concentrations
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing vapors, keep away from open flames, wash hands thoroughly after handling
Main Component: Alpha-terpineol
Purity: Typically above 90%
Other Constituents: Minor amounts of beta-terpineol, gamma-terpineol, and terpinen-4-ol may occur depending on source
Inhalation: Move to fresh air, rest in comfortable position, seek medical attention for breathing difficulties
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing, medical advice if irritation remains
Eye Contact: Rinse carefully with water for several minutes, remove contact lenses if present, continue rinsing, consult physician if symptoms continue
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical help
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide
Special Hazards: Vapors may form explosive mixtures with air, combustion releases carbon oxides
Advice for Firefighters: Use self-contained breathing apparatus, wear protective clothing, prevent fire-fighting runoff from entering waterways
Personal Precautions: Wear suitable protective equipment, avoid breathing vapors, ventilate area
Environmental Precautions: Prevent entry into sewers or waterways, contain spill with non-combustible materials
Cleanup Methods: Absorb liquid with inert material, place in chemical waste container for proper disposal, clean spill area with water and detergent
Handling: Avoid inhalation of vapors or contact with eyes and skin, work in well-ventilated areas, keep away from sources of ignition
Storage Conditions: Store in tightly closed containers, keep in a cool, dry place away from incompatible substances, separate from oxidizers and acids
Specific Requirements: Use containers that resist chemical attack, limit unprotected access, label all storage clearly
Exposure Limits: No established occupational exposure limit for terpineol, but similar terpenes suggest minimizing exposure
Engineering Controls: Ensure good ventilation, use local exhaust if possible
Eye Protection: Safety goggles or face shield
Skin Protection: Protective gloves resistant to chemicals
Respiratory Protection: Use a properly fitted respirator in case of inadequate ventilation
Hygiene Measures: Wash hands after handling; no eating, drinking, or smoking in work area
Physical State: Liquid
Color: Colorless to pale yellow
Odor: Distinctly floral, reminiscent of lilac
Melting Point: About 35°C (for pure alpha-terpineol)
Boiling Point: Approximately 214°C
Flash Point: Around 85°C (closed cup)
Solubility: Slightly soluble in water, soluble in alcohol and organic solvents
Vapor Pressure: Low at room temperature
Relative Density: Around 0.93 at 20°C
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: May react with strong oxidizing agents
Conditions to Avoid: Heat, flames, ignition sources, prolonged exposure to air and light
Incompatible Materials: Strong oxidizers, acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide from combustion
Acute Toxicity: Low acute toxicity; oral LD50 in rat ranges from 1,600 to 4,300 mg/kg
Skin Corrosion/Irritation: May cause mild skin irritation
Serious Eye Damage/Irritation: Can cause painful irritation
Respiratory Sensitization: Irritation possible at high vapor concentrations
Chronic Effects: Prolonged or repeated exposure may increase sensitivity or worsen irritation
Carcinogenicity: No evidence of carcinogenic potential
Ecotoxicity: Toxic to aquatic life at high concentrations, especially for fish and aquatic invertebrates
Persistence and Degradability: Expected to be biodegradable, breaks down under environmental conditions
Bioaccumulative Potential: Low potential for bioaccumulation due to breakdown in environment
Mobility in Soil: Limited, adheres to soil moderately, not expected to leach significantly
Waste Treatment Methods: Incinerate or dispose in accordance with local, regional, or national regulations
Contaminated Packaging: Rinse and dispose according to environmental guidelines, avoid landfill dumping without proper treatment
Special Precautions: Do not release to surface water systems or sewers without proper neutralization or treatment
UN Number: Often not classified as hazardous under transport rules, check relevant authority
Transport Hazard Class: Not usually regulated as dangerous good in small quantities
Packing Group: Confirmation depends on concentration and volume
Special Transport Precautions: Protect containers from physical damage and direct sunlight, secure containers during transportation
Global Listings: Included on major chemical inventories like TSCA (US), REACH (EU)
Safety Assessment: Approved for use in flavorings and fragrances with restrictions
Labelling Requirements: Product labels require hazard information, handling precautions, and safety measures as outlined by GHS
Workplace Safety: Employers must provide adequate information and safety training about handling and risks
