Product Name: N,N-Dimethyl-1,3-propanediamine
CAS Number: 109-55-7
Synonyms: Dimethylpropylenediamine, 1,3-Propanediamine, N,N-dimethyl-
Recommended Use: Intermediate for chemical synthesis, particularly for epoxy resin curing agents and polyamide resins
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GHS Classification: Flammable liquid (Category 3), Acute toxicity oral (Category 4), Skin corrosion (Category 1B), Eye damage (Category 1), Acute aquatic toxicity (Category 3)
Pictograms: Flame, Corrosion, Exclamation Mark
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage; toxic if swallowed; may cause respiratory irritation; flammable liquid and vapor
Precautionary Statements: Keep away from heat, sparks, open flame, sources of ignition; wear protective gloves and clothing; wash hands thoroughly after handling; do not breathe vapors or mists; in case of inadequate ventilation wear respiratory protection
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chemical Name: N,N-Dimethyl-1,3-propanediamine
CAS Number: 109-55-7
Concentration: >99%
Impurities/Additives: Typical commercial grade may contain trace amines; no significant stabilizers or inhibitors reported
Inhalation: Remove victim to fresh air; keep at rest; seek medical attention if symptoms occur; administer oxygen if breathing is difficult
Skin Contact: Immediately flush skin with plenty of water for at least 15 minutes; remove contaminated clothing and shoes; seek medical attention; wash before reuse
Eye Contact: Rinse thoroughly with large amounts of water for at least 15 minutes, lifting eyelids; get medical attention promptly
Ingestion: Rinse mouth with water; do not induce vomiting; if victim is conscious, give water to dilute; get immediate medical help
Notes to Physician: Treat symptomatically; monitor for respiratory distress, treat burns and irritation accordingly
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Unsuitable Extinguishing Media: Direct water jet
Specific Hazards: Vapors can form explosive mixtures with air; burning releases toxic and irritating gases such as nitrogen oxides, carbon monoxide, ammonia
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Advice for Firefighters: Move containers from fire area if possible; prevent runoff from entering drains or waterways; cool containers exposed to fire with water spray
Flash Point: 47°C (117°F) closed cup
Explosion Limits: Lower: 1.8% Upper: 9.6% (by volume in air)
Personal Precautions: Use personal protective equipment; avoid breathing vapors; ensure adequate ventilation; evacuate area if spill is large
Environmental Precautions: Prevent further leakage or spillage if safe to do so; do not let product enter drains or watercourses
Containment Methods: Cover spill with non-combustible absorbent material such as sand, earth, or vermiculite
Cleanup Procedures: Collect residue in suitable, closed containers for disposal; wash affected area with plenty of water
Special Precautions: Vapors may form explosive mixtures with air; remove all ignition sources
Safe Handling: Avoid exposure; minimize vapor formation; use with adequate ventilation; do not breathe vapor or mist; wash thoroughly after handling
Storage Conditions: Store in tightly closed containers in a cool, dry, well-ventilated area away from oxidizers, acids, and ignition sources
Incompatible Materials: Strong acids, strong oxidizing agents
Special Requirements: Containers should be grounded and bonded; keep away from heat and sources of ignition; store only in original container
Occupational Exposure Limits: No OSHA PEL or ACGIH TLV established; minimize exposure as much as possible
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels
Personal Protective Equipment:
- Eye/Face Protection: Safety goggles; face shield for splash risk
- Skin Protection: Chemical-resistant gloves (nitrile, butyl rubber recommended); protective clothing to prevent skin contact
- Respiratory Protection: Use NIOSH-approved respirator with ammonia/methylamine cartridge in absence of adequate ventilation
Hygiene Measures: Wash hands, forearms, and face thoroughly after handling; do not eat, drink, or smoke in work area
Appearance: Clear, colorless to light yellow liquid
Odor: Amine-like, fishy
Odor Threshold: Not available
pH: 11-12 (aqueous solution)
Melting Point: -62°C (-80°F)
Boiling Point: 134°C (273°F)
Flash Point: 47°C (117°F) (Closed cup)
Evaporation Rate: Not determined
Flammability: Flammable liquid
Explosive Limits: 1.8% (Lower); 9.6% (Upper)
Vapor Pressure: 5 mm Hg at 20°C
Vapor Density: 3.1 (air = 1)
Solubility: Miscible with water
Partition Coefficient (Log Kow): Not available
Auto-Ignition Temperature: 275°C
Decomposition Temperature: Not determined
Viscosity: Not available
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: May react with strong oxidizing agents; vapors can form explosive mixtures with air
Conditions to Avoid: Heat, flames, ignition sources, incompatible materials
Incompatible Materials: Acids, oxidizing agents
Hazardous Decomposition: Nitrogen oxides, carbon monoxide, carbon dioxide, ammonia
Acute Toxicity: LD50 Oral (rat): 189 mg/kg; LD50 Dermal (rabbit): 450 mg/kg
Inhalation: Vapors cause severe respiratory irritation; high concentrations may lead to pulmonary edema
Skin Contact: Causes severe burns
Eye Contact: Risk of permanent eye damage or blindness
Chronic Effects: Prolonged or repeated exposure may result in dermatitis and kidney or liver injury
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity: No data available
Reproductive Toxicity: No data available
Aquatic Toxicity: Toxic to aquatic life; LC50 (fish, 96 h): 50-100 mg/L
Mobility in Soil: Product highly water-soluble; can migrate in soil and potentially contaminate groundwater
Persistence and Degradability: Not readily biodegradable; may persist in environment
Bioaccumulation: Low potential based on physical chemical data
Other Adverse Effects: No data on ozone, ozone-depleting chemicals, or endocrine disruption
Waste Disposal Methods: Dispose of in accordance with all local, state, and federal regulations; incinerate in approved facility, avoid release to environment
Contaminated Packaging: Empty containers should be rinsed, then offered for recycling or disposal by licensed contractor
Special Precautions: Avoid contact with skin, eyes, and clothing during disposal
UN Number: UN 2734
UN Proper Shipping Name: Amines, liquid, corrosive, flammable, n.o.s. (contains N,N-Dimethyl-1,3-propanediamine)
Transport Hazard Class: 3 (Flammable Liquid), 8 (Corrosive)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Transport Precautions: Carry in secure, upright position; do not transport with incompatible materials (acids, oxidizers)
OSHA: Considered hazardous; regulated under the Hazard Communication Standard
TSCA: Listed
EPCRA Section 302: Not listed as extremely hazardous
EPCRA Sections 311/312: Immediate (acute) health hazard, fire hazard
EPCRA Section 313: Not listed
SARA Title III: May be subject to reporting under Section 311/312
RCRA: Not a listed hazardous waste; may exhibit hazardous characteristics
California Proposition 65: Not listed
Canada WHMIS: Class B2 (Flammable Liquid), Class E (Corrosive Material)
European Union (REACH): Registered
