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Name: M-Isopropylphenol
Common label: 3-Isopropylphenol
Other names: meta-Isopropylphenol, m-Cumenol
Chemical formula: C9H12O
Molecular weight: 136.19 g/mol
Appearance: Oily liquid, color can vary from clear to slightly yellow
Odor: Distinct phenolic scent, sharp and medicinal
Uses: Found in antioxidant blends, fragrance creation, intermediate for chemical synthesis
Physical hazards: Flammable liquid, produces vapors heavier than air
Health hazards: Can cause skin and eye irritation; vapors may produce respiratory discomfort or dizziness; harmful if swallowed
Environmental impact: Toxic to aquatic life if released unrecovered
Symbol: Exclamation mark, flame
Risk phrases: May cause irritation on prolonged contact with skin; repeated inhalation may harm lungs or nervous system
Chemical name: M-Isopropylphenol
CAS number: 2386-23-6
Purity: Typically 98% or greater in commercial batches
Other constituents: Trace phenolic isomers, rarely above 1% each
Inhalation: Move to fresh air; keep airway open; medical attention for breathing difficulty
Skin contact: Remove contaminated clothing and rinse skin thoroughly with water and mild soap; observe for irritation
Eye contact: Rinse eyes with clean water for at least 15 minutes, lifting eyelids to ensure thorough cleansing
Ingestion: Rinse mouth; avoid inducing vomiting; seek immediate medical intervention if large quantities swallowed
Special advice: Do not leave affected person alone until fully recovered, especially if dizziness or breathing trouble present
Suitable extinguishing media: Carbon dioxide, foam, dry chemical, water spray
Specific hazards: Combustion generates toxic fumes including carbon monoxide and phenolic vapors
Protective equipment: Firefighters should wear full protective suits and self-contained breathing apparatus
Special precautions: Keep containers cool with water spray, stay upwind, prevent runoff into water supplies
Personal safeguards: Use chemical-resistant gloves, splash goggles, and avoid breathing vapors
Spill response: Ventilate area, contain spill using non-combustible materials like sand or vermiculite, and transfer to safe container
Environmental steps: Prevent leakage into drains or water bodies; report larger spills to environmental authorities
Cleanup: Dispose of contaminated materials carefully, following hazardous waste protocols
Handling: Avoid direct contact and inhalation by using fume hoods or working in well-ventilated spaces; keep away from open flames and sparks
Storage: Store in a tightly sealed container, away from strong oxidizing agents and sources of ignition, at cool and stable temperatures
Special advice: Segregate from foods, feed, and incompatible chemicals, and label containers clearly
Engineering controls: Ensure proper ventilation, preferably mechanical exhaust systems
Personal protection: Chemical-resistant gloves, close-fitting safety goggles, and flame-resistant lab coats recommended
Respiratory protection: Use organic vapor respirators if vapors exceed safe exposure levels
Hygiene: Change contaminated clothing, do not eat or drink in areas of use; wash hands after handling
Exposure limit: No well-defined occupational exposure limit, but minimized contact is strongly advised
Physical state: Clear to slightly yellow oily liquid
Odor: Medicinal and phenolic
Boiling point: 223°C
Melting point: -24°C
Flash point: Approximately 94°C (closed cup)
Solubility: Slightly soluble in water, readily soluble in many organic solvents
Vapor pressure: Very low at 20°C
Density: About 0.96 g/cm³
Chemical stability: Stable under recommended handling, storage, and mild atmospheric conditions
Incompatible materials: Strong oxidizers, acids, and bases can trigger dangerous reactions
Decomposition risks: At high temperatures or with fire, can decompose to release harmful vapors including carbon monoxide and various irritants
Polymerization: Does not undergo hazardous polymerization under normal conditions
Acute exposure: Skin and eye irritation documented in animal studies; ingestion can cause abdominal pain, nausea, central nervous system disturbance
Chronic effects: Prolonged exposure may impact liver or kidneys, though limited human data
Sensitization: Unlikely with short, occasional handling; repeated prolonged contact raises risk
Routes of exposure: Inhalation, skin, eye, ingestion
LD50 (oral, rat): Estimated around 900 mg/kg, though this varies
Aquatic toxicity: Harmful to fish and invertebrates at high concentrations
Persistence: Tends to degrade slowly in water and soil under standard environmental conditions
Bioaccumulation: Moderate potential due to moderate water solubility and affinity for organic matter
Environmental release: Prevent entry into waterways, as phenolic compounds may disrupt local microbial populations and damage aquatic ecosystems
Waste disposal: Use licensed hazardous waste contractors for collection and incineration
Container disposal: Empty containers must be triple rinsed and rendered unusable before landfill or recycling according to regulatory standards
Regulatory steps: Do not dispose of via municipal sewers, streams, or ordinary landfills
UN number: Not always assigned; check packaging group recommendation
Proper shipping name: Flammable liquid, n.o.s. (contains M-Isopropylphenol)
Transport hazard class: 3 (flammable liquids)
Packing group: III when shipped in regulated quantities
Special precautions: Avoid overheating during transport and protect from mechanical shock
Labeling: Must have hazard pictograms, relevant GHS phrases, and safety instructions in local language
Chemical inventories: Often found in EU REACH, US TSCA, and international registries as a monitored substance due to environmental and health risks
Restrictions: Some regions place controls on both workplace handling and environmental discharge
Community right-to-know: Requires notification and training in industrial and laboratory settings
