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Chemical Name: Dimethylamine Tetrahydrofuran
Common Synonyms: DMA-THF adduct
Appearance: Colorless to pale yellow liquid
Odor: Strong, ammonia-like
Primary Use: Laboratory reagent, intermediate for synthesis
Solubility: Mixes well with common organic solvents, dissolves in water
Main Health Risks: Highly flammable, irritating to eyes, skin, and respiratory system
Hazard Symbols: Flammable, toxic
Acute Effects: Headache, dizziness, nausea, burns to contact areas
Chronic Effects: Prolonged exposure raises the chances of organ toxicity and nervous system issues
Fire Risk: Forms explosive mixtures with air
Reactive Nature: Pressure buildup and violent reaction with some oxidizers
Main Components: Dimethylamine (CAS 124-40-3), Tetrahydrofuran (CAS 109-99-9)
Approximate Range: Proportion shifts with preparation; both often exceed 40% by weight
Impurities: Minor secondary amines or THF stabilizer residues
Inhalation: Remove to fresh air fast. Medical attention is vital if breathing gets difficult. Oxygen given if trouble persists.
Skin Contact: Remove contaminated clothing, wash skin steadily with water
Eye Contact: Flush with clean, lukewarm water for at least 15 minutes
Ingestion: Rinse mouth, seek medical action. Inducing vomiting raises the risk of aspiration.
Long-term Symptoms: Close observation after exposure crucial, as delayed lung effects may show up
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam
Unsuitable Media: Water jets
Fire Hazards: Vapors may travel and flash back. Thermal decomposition may produce toxic fumes like carbon monoxide and nitrogen oxides.
Firefighter Protection: Full protective suit, self-contained breathing apparatus
Explosion Potential: Closed containers can rupture with heat
Personal Precautions: Evacuate area, ventilate. Avoid all sources of ignition.
Environmental Measures: Prevent further leakage in waterways, drains, soil
Cleanup: Absorb spill with inert material (like sand). Use spark-proof tools, collect in sealed containers for disposal.
Respiratory Protection: Appropriate mask recommended in contaminated areas
Handling: Avoid breathing vapors, direct contact
Precautions: No smoking, open flames, or sparks
Storage: Cool, dry area with strong ventilation. Store away from oxidizers, acids, direct sunlight
Container Material: Use tight, non-reactive packaging
Hygiene: Regular handwashing after handling, no eating or drinking in work zone
Engineering Controls: Use fume hoods, safety showers, eyewash stations
Personal Protective Equipment: Chemical resistant gloves (like nitrile), splash goggles, lab coats
Respiratory: Organic vapor respirators recommended during potential vapor exposure
Exposure Limits: OSHA and EU have workplace limits for both dimethylamine and THF
Work Practices: Monitoring vapor levels helps keep risks in check. Always supervise tasks in restricted areas or under strict controls.
Appearance: Clear, sometimes yellowish liquid
Odor Threshold: Distinct ammonia-like smell detectable at low concentrations
pH: Typically basic
Boiling Point: Varies, but commonly below 70°C
Melting Point: Below 0°C
Flash Point: Well below room temperature, raising significant ignition danger
Vapor Pressure: Elevated at normal temperatures
Vapor Density: Heavier than air
Miscibility: Mixes completely with water and organic solvents
Chemical Stability: Sensitive to air, light, and moisture over long periods
Reactivity: Reacts with strong acids, oxidizers, and alkylating agents
Conditions To Avoid: Heat, sparks, open flame, static discharge
Hazardous Decomposition: Emits toxic fumes of carbon monoxide, carbon dioxide, nitrogen oxides under fire
Likely Harmful Exposure Routes: Inhalation, skin, eyes, possibly ingestion
Symptoms of Overexposure: Mucous membrane irritation, respiratory distress, burning skin sensation
Somatic Effects: Neurological symptoms possible at high dose
Known Toxic Effects: Animal studies reveal organ swelling and tissue death at large doses
Chronic Effects: High exposures risk liver and kidney changes, memory loss in extended lab handling
Aquatic Toxicity: Harmful to fish and aquatic life if released
Persistence: Breaks down with sunlight and bacteria over some weeks
Bioaccumulation: Low potential, but breakdown products may linger
Soil Mobility: Leaches through soil, contaminates water tables
Environment Threat: Risk increases with repeated releases, especially in low-flow, stagnant areas
Waste Treatment: Collect into clearly labeled solvent waste containers
Approved Disposal: High-temperature incineration or licensed chemical waste facility
Precaution: Never pour down drain, never landfill untreated
Prevent Reuse: Residue on containers means field stripping or destruction of empty drums before disposal
Regulatory Status: Hazardous when shipped by air, sea, or road
Packing Class: Flammable liquid, class 3
Risk Aspects: Robust, sealed packaging needed. UN labels required for transit. Main accident risks linked to spills and flash fire in confined vehicle spaces.
Workplace Standards: Enforced air exposure limits, hazard communication rules
Labeling: Must carry flammable and toxic signs plain on containers
Environmental Regulations: Discharge strictly regulated
International Controls: Listed under international chemical transport agreements for hazardous goods
