Chemical name: N,N-Dimethylallylamine
Chemical formula: C5H11N
Common uses: Intermediate in organic synthesis, ingredient for chemical manufacturing, some specialty polymers
Appearance: Clear, colorless to pale yellow liquid, slight amine odor
Molecular weight: 85.15 g/mol
Synonyms: 3-buten-2-amine, N,N-dimethyl-; DMAA
CAS Number: 5137-18-4
Main hazards: Flammable liquid and vapor, causes skin and eye irritation, potential respiratory hazard if inhaled
OSHA Hazard: Classified as hazardous by criteria of OSHA Hazard Communication Standard
Acute exposure: Vapor irritates eyes, nose, throat; liquid burns skin, risk of ingestion symptoms
Chronic exposure: Prolonged contact leads to dermatitis or sensitization
Hazard symbols: Flammable, Irritant (actual pictograms can be checked on regulatory sites)
Ingredient: N,N-Dimethylallylamine
Concentration: ≥95%
Impurities: Low-level amines or by-products from synthesis, few percentage points at most
Implication: Purity affects toxicity; focus on good handling practices
Inhalation: Move to fresh air, get medical help for persistent symptoms
Skin contact: Remove contaminated clothing, wash skin with soap and plenty of water
Eye contact: Rinse eyes with water for minutes, don't rub; seek doctor if pain persists
Ingestion: Rinse mouth, don't induce vomiting; seek medical advice
Notes: Providing clean air and decontamination matters more than just treating symptoms, never overlook even so-called minor exposures
Extinguishing media: Use foam, dry chemical, or carbon dioxide
Hazards: Vapors form explosive mixtures with air, low flash point, risk of re-ignition after flames are out
Protective gear: Firefighters need self-contained breathing apparatus, full gear due to vapor and toxic combustion gases
Advice: Cool exposed containers with water, protect runoff from chemical entering drains
Precautions: Ventilate area, use spark-proof tools and explosion-proof equipment
Personal protection: Wear gloves, protective goggles, chemical-resistant clothing
Spill handling: Absorb spill with inert material (sand, earth), scoop into containers, label for disposal
Clean up: Wash area thoroughly after material removal, check air quality before re-entry
Safe handling: Keep away from heat, sparks, and open flames, avoid inhalation of vapor and contact with skin
Storage conditions: Store in tightly closed containers, cool, dry, well-ventilated area, separate from incompatible materials like acids and oxidizers
Personal hygiene: Wash thoroughly after handling, never eat or drink in areas where product is used
Static risk: Ground and bond containers during transfer to prevent ignition from static discharge
Exposure limits: No specific OSHA PEL or ACGIH TLV for this chemical, but follow conservative limits for amines and organics
Engineering controls: Use fume hood or local exhaust, maintain low vapor concentration
Personal protection: Gloves (nitrile, neoprene), goggles, face shield, protective apron; respirator for poorly ventilated areas
Monitoring: Regular air monitoring, skin checks for workers to preempt cumulative exposure
State: Liquid
Color: Colorless to pale yellow
Odor: Characteristic amine odor
Melting point: Liquid at room temperature
Boiling point: About 96-98 °C
Flash point: Around 6–8 °C (closed cup), lights up near typical indoor temperatures
Solubility: Miscible with water and organic solvents
Vapor pressure: Moderate; evaporates quickly if uncapped
Reactivity: Highly flammable, reacts with acids to form heat and irritating gases
Chemical stability: Stable under recommended conditions, degrades in presence of heat, acids, or oxidizers
Incompatibilities: Strong oxidizing agents, acids, acid chlorides
Decomposition products: Produces toxic fumes of nitrogen oxides under fire or thermal stress
Polymerization: Not prone to hazardous polymerization under normal use
Exposure routes: Inhalation, skin, eyes, ingestion
Acute effects: Irritates respiratory tract, causes coughing, redness, pain; high doses lead to nausea, dizziness
Skin contact: Causes burning, drying, cracking, possible allergic reaction
Animal data: Moderate acute oral toxicity in lab animals, no well-established human data
Chronic effects: Extended exposure aggravates skin and breathing problems, may sensitize some people
Cancer info: No evidence of carcinogenicity; always best to err on the safe side and minimize unnecessary contact
Aquatic toxicity: Harmful to aquatic organisms at high concentration
Persistence: Breaks down in environment but can affect water life if released in quantity
Bioaccumulation: Low potential; doesn’t build up in food chain based on structure and data
Precaution: Prevent spills into waterways, keep storm drains tightly closed in use areas
Preferred methods: Incinerate under controlled conditions in licensed facility
Small quantities: Absorb in sand or earth, seal in proper drum, send to hazardous chemical waste handler
Regulatory note: Do not pour down drains or toss with routine trash; local laws set strict limits for chemical drainage
Container issue: Empty containers can still pose risk due to vapor or liquid residue
UN number: UN 2733 (Dimethylallylamine, flammable liquid)
Hazard class: 3 (flammable liquid)
Packing group: II
Shipping advice: Keep away from sources of ignition, Ventilate containers, follow all label and placard requirements
Spill response: Any transport accident requires rapid isolation and fire department notification
US EPA: Listed as hazardous substance for emergency planning and community right-to-know
OSHA: Covered by Hazard Communication Standard
Inventory status: Listed in US TSCA inventory, included in similar inventories abroad
Workplace warning: Employers must train staff, keep updated safety documents, and enforce PPE policies
Local laws: Some regions require spill contingency plans for storage above threshold volumes
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