Product Name: Dimethylethylamine
Chemical Formula: C4H11N
CAS Number: 598-56-1
Synonyms: N,N-Dimethylethylamine, DMAEA
Recommended Use: Industrial chemical for resin production, catalyst in polyurethane foams, corrosion inhibitor
Manufacturer Information: Supplier contact details with phone and address
Emergency Contact: Local chemical emergency response center
Classification: Flammable liquid (Category 2), Acute toxicity - oral (Category 4), Skin irritation (Category 2), Eye irritation (Category 2A), Specific target organ toxicity single exposure (Category 3, respiratory system)
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor, harmful if swallowed, causes skin irritation, causes serious eye irritation, may cause respiratory irritation
Pictograms: Flame, Exclamation mark
Precautionary Statements: Keep away from heat, sparks, open flames, and hot surfaces. Wear protective equipment. Avoid breathing vapors, wash thoroughly after handling. Use only outdoors or in well-ventilated areas.
Chemical Name: Dimethylethylamine
Concentration: >99% by weight
Impurities: Lower amines (traces), water (<0.1%)
Molecular Weight: 73.14 g/mol
Inhalation: Move person to fresh air. Get medical attention if symptoms develop or persist. Avoid breathing vapor by using personal protective equipment.
Skin Contact: Remove any contaminated clothing immediately and wash skin with generous amounts of soap and water. Seek medical care if irritation persists.
Eye Contact: Rinse eyes cautiously with water for at least 15 minutes. Hold eyelids open and occasionally lift upper and lower lids. Get immediate medical attention after flushing.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice as soon as possible.
Other Information: Symptomatic treatments based on clinical judgment. Eye washing stations and safety showers can greatly reduce risk from accidental exposure.
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide for small fires.
Unsuitable Extinguishing Media: Avoid direct water stream as this might spread the fire.
Special Hazards: Vapors can form explosive mixtures with air. Combustion yields hazardous gases such as nitrogen oxides and carbon oxides.
Protective Equipment: Firefighters should wear full protective clothing and self-contained breathing apparatus.
Specific Methods: Cool closed containers exposed to fire with water spray. Prevent water runoff from entering drains or watercourses.
Personal Precautions: Evacuate personnel to safe areas, eliminate ignition sources, wear chemical resistant gloves, goggles, and suitable respiratory protection.
Environmental Precautions: Prevent leakage into soil, waterways, or sewers. Place barriers if available.
Methods for Clean-Up: Absorb with non-combustible material and collect in container for disposal. Ventilate the area. Clean contaminated surfaces thoroughly. Use explosion-proof equipment.
Notification: Report spills to local, regional, and national authorities as required.
Handling: Use spark-proof tools and equipment. Prevent static discharge by grounding containers and personnel before transfer. Avoid inhalation, skin, and eye contact. Wash hands before eating or drinking.
Storage: Store in tightly closed containers in a cool, dry, and well-ventilated area. Keep away from ignition sources, acids, oxidizers, and direct sunlight. Use dedicated storage and label clearly.
Special Instructions: Do not eat, drink, or smoke during handling. Follow all local and company safe chemical handling procedures.
Occupational Exposure Limits: ACGIH TLV: 2 ppm (TWA), OSHA PEL: Not established
Engineering Controls: Use local exhaust or general ventilation to keep airborne concentrations below exposure limits. Install emergency showers and eyewash stations.
Personal Protection: Wear protective gloves (nitrile, neoprene), goggles, face shield, flame-retardant clothing, and an approved respirator if exposure limits may be exceeded.
Hygiene Measures: Wash hands, forearms, and face after handling. Remove contaminated clothing and wash before reuse.
Appearance: Colorless liquid
Odor: Strong, fishy, ammonia-like
Odor Threshold: Low, distinctive
pH: Alkaline
Melting Point/Freezing Point: -88°C
Boiling Point: 55-57°C
Flash Point: -18°C (closed cup)
Evaporation Rate: Fast, volatile
Flammability: Highly flammable
Upper/Lower Flammability Limits: 1.8-10% (in air)
Vapor Pressure: 400 mmHg at 20°C
Vapor Density: 2.5 (air = 1)
Relative Density: 0.705 (water = 1)
Solubility: Miscible with water and common solvents
Partition Coefficient (n-octanol/water): Estimated low
Auto-Ignition Temperature: 223°C
Decomposition Temperature: Not determined
Viscosity: Low, mobile liquid
Chemical Stability: Stable under normal conditions, sensitive to air, moisture, and light with prolonged exposure.
Possible Hazardous Reactions: Reacts violently with acids, oxidizers, and strong reducing agents.
Conditions to Avoid: Heat, flame, sparks, static discharge, direct sunlight, moisture.
Incompatible Materials: Strong acids, halogens, chloroformates, peroxides.
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide.
Acute Toxicity (Oral): LD50 (rat): 458 mg/kg
Inhalation: Vapors irritate upper respiratory tract, can cause dizziness, headache, nausea at high concentrations.
Dermal Exposure: LD50 (rabbit): 982 mg/kg; skin contact produces irritation, burning, possible chemical burns.
Eye Exposure: Severe irritation, risk of permanent eye damage.
Chronic Effects: Prolonged/repeated contact sensitizes skin, possible impact on liver and kidneys.
Carcinogenicity: Not classified as human carcinogen by IARC, ACGIH, NTP.
Mutagenicity & Reproductive Toxicity: Insufficient evidence in current studies.
Ecotoxicity: Toxic to aquatic life with long-lasting effects, LC50 (fish, 96h): 66 mg/L.
Persistence and Degradability: Moderate biodegradability, potential for persistence in environment.
Bioaccumulative Potential: Low, no significant bioaccumulation expected in aquatic organisms.
Mobility: High in soil and water, moves rapidly through the environment.
Other Adverse Effects: Can contribute to formation of ground-level ozone through vapor release.
Waste Disposal Methods: Dispose according to local, state, and federal regulations for hazardous chemical waste. Incinerate in approved facility or use licensed chemical waste contractor.
Contaminated Packaging: Rinse empty containers, offer for recycling if available or dispose as hazardous waste.
Other Precautions: Do not discharge into drains or water sources. Notify authorities if environmental release occurs.
UN Number: UN 2372
Proper Shipping Name: Dimethylethylamine
Transport Hazard Class: 3 (Flammable Liquids)
Packing Group: I
Labels: Flammable liquid
Special Precautions: Secure containers during transport, keep away from incompatible materials, ensure proper ventilation.
OSHA Hazard Communication Status: Hazardous, includes flammable and health hazard classifications.
SARA Title III Sections 302/304: Not listed as extremely hazardous
SARA Title III Section 311/312: Immediate (acute) health hazard, fire hazard
SARA Title III Section 313: Not subject to reporting
TSCA Status: Listed on inventory
REACH Status: Registered substance within EU
Other Local/National/International Regulations: Subject to transportation and workplace safety rules in all jurisdictions where used or transported.
