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Chemical Name: N,N-Dimethylethanolamine
Common Uses: Paint additives, water treatment chemicals, corrosion inhibitors, pharmaceutical intermediates
CAS Number: 108-01-0
Physical Appearance: Clear liquid with a strong fishy, ammonia-like odor
Distinctive Properties: Mixes easily with water and most organic solvents. Recognizing the smell often signals where it's present in the air, especially around tanks or spills.
Main Hazards: Combines the risks of a strong base and an amine. Exposure to vapors irritates eyes, skin, and the respiratory system.
Health Risks: Exposure to large amounts leads to headaches, dizziness, or nausea. Repeated skin contact may cause dermatitis. Splashing into eyes causes painful burns or even vision problems.
Environmental Risks: Contamination of soil or waterways affects aquatic life, but it breaks down in the environment over time.
Main Ingredient: N,N-Dimethylethanolamine (100%)
Impurities: Industrial and laboratory grade batches can contain traces of water, methanol, or related amines
Risk From Impurities: Even small traces of methanol or similar compounds increase toxicity or flammability risks, so knowing the source and grade is important
Inhalation: Remove exposed person to fresh air. If they develop difficulty breathing or asthma-like symptoms, get medical help quickly.
Skin Contact: Wash thoroughly with water. Remove contaminated clothing to prevent irritation. Persistent redness or blistering means a doctor’s visit.
Eye Contact: Rinse eyes with water for up to fifteen minutes. Vision changes or continued pain signal the need for professional care.
Ingestion: Rinse mouth, don’t induce vomiting, and seek medical attention. Swallowing larger amounts carries a higher risk of poisoning.
Flammability: The liquid ignites under standard flammable liquid conditions. Vapors form explosive mixtures with air especially in warm, enclosed areas.
Extinguishing Media: Use dry chemical powder, carbon dioxide, or alcohol-resistant foam. Water may spread a small fire or cause overflowing of containers.
Special Precautions: Chemical fires produce toxic fumes including nitrogen oxides and carbon monoxide. Wearing self-contained breathing apparatus and protective gear is crucial.
Other Risks: Heating or burning can rupture sealed drums, increasing risk of explosion.
Personal Protection: Before cleaning up, ensure gloves and proper goggles are on. Ventilate the area well to avoid inhaling the vapors.
Spill Response: Soak up small spills with sand or inert absorbent. Larger spills need containment—block drains, and use barriers. Bag contaminated material tightly.
Safe Disposal: Collected material needs handling as chemical waste and must not reach routine trash or sewer systems.
Storage Conditions: Store in tightly closed containers, away from acids, oxidizers, or sources of ignition. Choose a cool, dry, well-ventilated site.
Handling Practices: Find and eliminate sources of leaks or spillage. Avoid direct breathing of vapors. No eating, drinking, or smoking near the chemical.
Safe Transfers: Take care to ground and bond all vessels during pumping and transferring to avoid static buildup and possible ignition.
Ventilation: Open windows, use chemical fume hoods, or install local exhaust systems to keep air clean.
Personal Protective Equipment: Butyl rubber or nitrile gloves, chemical splash goggles, and lab coat or apron are minimum for any work with open containers. Respiratory protection such as a cartridge mask suits jobs with high vapor concentrations.
Workplace Monitoring: Testing air using portable gas detectors helps keep exposures in safe ranges, especially in confined or poorly ventilated rooms.
Boiling Point: Around 134°C (273°F)
Melting Point: Freezing point occurs below -70°C
Vapor Pressure: Noticeable evaporation at room temperature
Solubility: Mixes easily with water and alcohol. This property has benefits for cleaning spills but raises risks in humid conditions.
Other Features: Pressure builds up in closed containers if heated, sometimes without warning.
Chemical Stability: Stable under recommended storage conditions. Contact with acids triggers heat and possibly violent reactions.
Material Incompatibility: Strong acids, acyl halides, acid anhydrides, and oxidizers pose highest risks. Reactions with copper, aluminum, or their alloys cause corrosion and lead to leaks.
Hazardous Decomposition Products: If burned or decomposed, can release carbon monoxide, carbon dioxide, and other irritant gases.
Main Exposure Routes: Skin, eyes, and inhalation, with the chemical entering the body easiest by accidental splashing or vapor.
Short-term Harm: Red, irritated eyes; sore throat or coughing from breathing in vapors; headaches and nausea after higher exposures.
Long-term Risk: Constant contact causes skin drying, cracking, or burns. Chronic high exposure in workplaces links to trouble with memory or mood.
Reported Animal Data: Testing in animals shows potential to cause organ damage when taken in large doses over time.
Aquatic Toxicity: Spills damage fish and water insects, though the chemical also tends to degrade in water after exposure to sunlight and air.
Soil Impact: Soaks into soil easily, but doesn’t last as long as more persistent chemicals.
Long-term Risks: Accumulation in the food chain is unlikely due to its high reactivity and rapid breakdown, though high concentrations still pose acute risk to aquatic environments.
Waste Disposal: Send as hazardous chemical waste to a properly licensed facility. Don’t pour down sinks or into stormwater.
Banned Methods: No open-air burning or burying.
Recycling: On-site recovery happens in rare situations if the facility runs specialized equipment, but most is incinerated according to hazardous waste guidelines.
UN Number: UN 2051
Transport Hazard Class: Classified as flammable and harmful for over-the-road and sea transport
Packing Group: Moderate hazard category
Proper Shipping Practices: Use tightly sealed drums or bottles, clearly marked with hazard labeling. Vehicles must carry equipment to handle leaks or fires.
Worker Awareness: Everyone in transit or at warehouse sites should know the risks of flammability, chemical burns, and proper emergency response.
Workplace Safety Regulations: US OSHA and European REACH require risk management plans for jobs using this amine. Safety Data Sheets and training form the backbone of compliance.
Labeling Laws: Most countries demand clear hazard warnings, emergency symbols, and handling instructions on every container.
Community Right-to-Know: Facilities storing or using high amounts must disclose chemical inventories and control plans to local authorities.
Ongoing Review: Regulations change as more toxicity or environmental fate data emerges, pressing manufacturers and users to stay up to date.
