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Chemical Name: Dimethylaminopropylamine
Chemical Formula: C5H14N2
Other Names: 3-(Dimethylamino)-1-propylamine
Common Uses: Often used as an intermediate in the production of surfactants, home care products, and in some cases, water treatment chemicals.
Appearance: Clear to yellowish liquid with a strong amine odor.
GHS Classification: Flammable liquid, Corrosive to skin and eyes, Harmful if inhaled or swallowed
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage. May cause an allergic skin reaction. Flammable liquid and vapor. Harmful if inhaled.
Pictograms: Corrosive, Exclamation mark, Flame
Symptoms: Reddening, pain, blistering on skin; irritation of eyes that can progress to blindness; cough, sore throat, and shortness of breath when inhaled; gastrointestinal distress if swallowed.
Main Ingredient: Dimethylaminopropylamine (typically >99%)
Impurities: Trace amounts of secondary amines and residual starting materials from synthesis, usually at very low concentrations.
Molecular Weight: Approximately 102.18 g/mol
CAS Number: 109-55-7
Inhalation: Move to fresh air immediately; watch for breathing difficulties and provide supplemental oxygen if needed.
Skin Contact: Flush affected area with copious amounts of water for at least 15 minutes; remove contaminated clothing and seek medical attention.
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; continue rinsing and seek medical help promptly.
Ingestion: Do not induce vomiting; rinse mouth with water and seek emergency medical care without delay.
Suitable Extinguishing Media: Use alcohol-resistant foam, dry chemical powder, or carbon dioxide.
Hazards from Combustion: Emits toxic fumes of nitrogen oxides, carbon monoxide, and carbon dioxide when burned.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective clothing.
Firefighter Precautions: Cool containers exposed to flames with water spray to prevent rupture from heat; remove unaffected containers from fire zone if safe to do.
Personal Precautions: Avoid contact with spilled material; ventilate area and utilize appropriate personal protective equipment.
Environmental Precautions: Prevent entry into waterways, sewers, or confined spaces.
Cleanup Methods: Absorb spills with inert material such as sand or earth; collect in suitable containers for disposal.
Decontamination: Wash area with large volumes of water after removal of bulk material.
Handling: Use only in well-ventilated areas or with adequate local exhaust; avoid all direct contact and inhalation of vapors.
Storage: Store in tightly closed containers; keep in cool, dry, and well-ventilated place; protect from sources of ignition and strong oxidizing agents.
Incompatibilities: Strong acids, strong oxidizers, halogenated compounds; reactions with these may produce hazardous gases or violent reactions.
Storage Life: Stability is maintained in original packaging and proper conditions for an extended period; regular inspections recommended.
Recommended Engineering Controls: Use local exhaust ventilation or process enclosure to limit workplace exposure; monitor air concentrations where possible.
Personal Protective Equipment: Chemical-resistant gloves, splash-proof goggles or face shield, flame-retardant lab coat or apron, and appropriate respiratory protection in areas of poor ventilation.
Hygiene Measures: Wash hands thoroughly after handling; avoid touching face or skin with contaminated gloves or clothing; do not eat, drink, or smoke when using.
Occupational Exposure Limits: No established global consensus, but handle as hazardous at any detectable concentration.
Appearance: Clear to pale yellow liquid
Solubility: Highly soluble in water
Boiling Point: Approximately 134°C (273°F)
Melting Point: Near -60°C (-76°F)
Vapor Pressure: Moderate at room temperature
Flash Point: About 40°C (104°F) (closed cup)
Density: Around 0.81 g/cm³ at 20°C
Odor: Strong, ammonia-like
pH (in water): Strongly basic solution
Chemical Stability: Stable under recommended storage and handling conditions.
Reactivity: Reacts vigorously with acids; exothermic reactions with oxidizing agents; possibility of hazardous polymerization under extreme conditions.
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide, and small amine fragments under fire or thermal decomposition.
Incompatible Materials: Strong acids, strong oxidizers, halogenated hydrocarbons.
Routes of Exposure: Inhalation, skin absorption, ingestion, eye contact
Short-Term Effects: Severe irritation and chemical burns to affected tissues. Coughing, chest constriction, possible unconsciousness from inhalation of high concentrations. Risk of blindness from eye contact.
Long-Term Effects: Chronic exposure can sensitize skin, leading to allergic reactions with repeated contact; some evidence of liver and kidney effects in laboratory animals at high doses.
Acutely Toxic Levels: Oral LD50 (rat): about 2,100 mg/kg; Skin LD50 (rabbit): about 2,000 mg/kg; considered moderately toxic by acute exposure.
Carcinogenicity: Not classified as carcinogenic under current regulatory guidelines, though long-term inhalation data remains incomplete.
Additional Notes: High vapor concentrations can irritate respiratory tract or depress consciousness if exposure is prolonged and unprotected.
Aquatic Toxicity: Harmful to aquatic organisms; toxic effects increase with concentration and duration of exposure.
Persistence and Degradability: Rapidly biodegradable by standard wastewater treatment processes, but releases can cause local toxicity before dilution and breakdown.
Bioaccumulation Potential: Low; the compound does not remain in tissues over time in aquatic species.
Mobility in Soil: High; soluble compound migrates easily if spilled, underlining importance of spill control near water systems.
Special Considerations: Use care to limit environmental discharge, especially near water treatment plants or in manufacturing regions close to rivers and streams.
Waste Treatment Methods: Collect residues and contaminated absorbents for disposal through licensed chemical waste contractors.
Do Not Pour Down Drain: Even though DMAPA is degradable, untreated disposal can cause acute environmental hazards, particularly for aquatic life.
Incineration: Preferred method under controlled conditions, with scrubbing of exhaust gases to manage nitrogen oxide formation.
Empty Containers: Triple rinse and puncture before disposal as non-hazardous waste, or return for professional recycling/cleaning.
Regulatory Considerations: Local and national guidelines should always be consulted; improper disposal carries significant fines and environmental consequences.
UN Number: 2734
Proper Shipping Name: Amines, liquid, corrosive, flammable, n.o.s. (contains Dimethylaminopropylamine)
Packing Group: II (meaning medium danger level for transportation incidents)
Hazard Class: 8 (corrosive) and 3 (flammable liquid)
Special Precautions: Carriers require segregation from acids, oxidizers, and foods; containers must be checked for leaks and properly labeled at all times.
Spill Response in Transit: Notification of local emergency response and specialist cleanup teams is essential for major road or rail incidents.
Global Regulations: Subject to strict workplace and environmental controls in most industrialized countries due to corrosivity and flammability.
Worker Protection Laws: Many regions require safety training for handlers, mandatory reporting of large spills, and periodic medical surveillance for frequent occupational exposure.
Safety Labeling: Must include pictograms, hazard and precautionary statements, and emergency chemical identification according to GHS standards.
Environment and Public Health: Use history and injury records emphasize the value of regulation and regular review of workplace practices to prevent accidents and long-term health issues.
