Ascent Petrochem Holdings Co., Limited

Knowledge

N,N-Dimethylacrylamide (DMAA) Material Safety Data Sheet (MSDS) Information

Identification

Chemical Name: N,N-Dimethylacrylamide
Synonyms: DMAA, Dimethylacrylamide
Chemical Formula: C5H9NO
Molecular Weight: 99.13 g/mol
CAS Number: 2680-03-7
Product Use: Used as a monomer for polymerization, found in production of hydrogels, resins, copolymers.
Manufacturer: Listed on supplier label, emergency phone numbers printed on packaging, and on demand from material supplier.
Address: Check shipping documents or label for full address of local distributor or manufacturer.
Emergency Contact: Supplier-recommended emergency response lines, local poison control.

Hazard Identification

GHS Classification: Eye Irritant (Category 2A), Skin Irritant (Category 2), Acute Toxicity Oral (Category 4)
Pictograms: Exclamation mark
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation.
Precautionary Statements: Wear protective gloves, protective clothing, eye and face protection. Wash hands thoroughly after handling. Do not eat, drink or smoke when using this product. Avoid breathing dust or vapor.
Routes of Exposure: Inhalation, ingestion, skin and eye contact.
Target Organs: Skin, eyes, respiratory system.
Hazard Overview: Contact may cause moderate or severe irritation, long or repeated exposure increases the risk. Inhalation of dust or vapor can aggravate pre-existing respiratory issues.
Environmental Impact: Potential to irritate aquatic life if released in sufficient quantities.

Composition / Information on Ingredients

Name: N,N-Dimethylacrylamide
Concentration: 99% or greater in most packaged forms
CAS Number: 2680-03-7
EC Number: 220-237-5
Impurities: Trace amounts of water, stabilizers, and residual monomers.
Other Components: Common forms include stabilizers to prevent premature polymerization, always check labeling information for specific blend.

First Aid Measures

Inhalation: Move affected person to fresh air, assist breathing if necessary, keep under observation, seek medical advice if symptoms develop.
Skin Contact: Remove contaminated clothing, wash skin with plenty of soap and water for several minutes, seek medical attention if irritation persists.
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if present, continue rinsing. Seek immediate medical advice for persistent irritation.
Ingestion: Rinse mouth, drink water if not feeling well, call a poison control center or physician for further instructions. Do not induce vomiting unless directed by medical personnel.
Most Important Symptoms: Burning, redness, itching, watering of eyes, rash or discomfort.
Advice for Medical Professionals: Provide symptomatic and supportive care, monitor for delayed effects.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide.
Specific Hazards: Vapors may form explosive mixtures with air, containers may explode in heat or fire, burns with formation of toxic gases (nitrogen oxides, carbon monoxide, carbon dioxide).
Protective Equipment: Full protective clothing and self-contained breathing apparatus recommended for fire fighters.
Special Procedures: Cool containers exposed to fire with water, avoid inhaling combustion products, evacuate area if necessary.
Fire Hazards: Material can polymerize if exposed to heat, flames, or incompatible substances, increasing risk of violent reaction.

Accidental Release Measures

Personal Precautions: Evacuate spill area, ventilate location, wear chemical-resistant gloves and safety goggles, use appropriate respiratory protection if vapors are present.
Environmental Precautions: Prevent release into drains, groundwater, or natural environment, contain with dikes or barriers.
Cleanup Methods: Absorb with inert material such as sand or vermiculite, collect in closed, labeled containers for safe disposal. Wash contaminated surfaces with water and detergent.
Disposal: Collect waste and handle as chemical waste in accordance with local regulations.

Handling and Storage

Safe Handling: Work only in well-ventilated areas, minimize dust and vapor formation, keep away from ignition sources, avoid skin and eye contact.
Personal Hygiene: Always remove contaminated clothing, keep food and drink away from handling areas, wash hands thoroughly after use.
Storage Conditions: Store in tightly closed containers away from sources of heat, sunlight, and incompatible chemicals (oxidizers, strong acids or bases). Store in cool, dry, well-ventilated location.
Incompatibilities: Keep separated from oxidizing agents, acids, bases, and initiation catalysts.
Specific Storage Requirements: Use only containers and equipment designed for use with DMAA, regularly check containers for leaks.

Exposure Controls and Personal Protection

Engineering Controls: Use local exhaust ventilation, enclose processes where possible, ensure eyewash stations and emergency showers accessible in work area.
Exposure Limits: Not established by OSHA, ACGIH, NIOSH for DMAA; use general chemical safety standards.
Personal Protection: Wear chemical-resistant gloves (nitrile or neoprene), chemical splash goggles, lab coat or chemical apron, use of a face shield advised when risk of splashing.
Respiratory Protection: Use appropriate respirator with organic vapor cartridge if airborne concentrations exceed exposure limits or in poorly ventilated spaces.
Environmental Controls: Prevent accumulation of vapor, use process enclosures to minimize environmental emissions.

Physical and Chemical Properties

Appearance: Clear, colorless to pale yellow liquid
Odor: Mild amine or acrylate odor, sometimes likened to ammonia.
Odor Threshold: No data available
pH: Not applicable (neutral compound)
Melting Point: -20 °C
Boiling Point: 174-175 °C at 1013 mbar
Flash Point: 85 °C (closed cup)
Evaporation Rate: No data available
Flammability: Combustible liquid
Vapor Pressure: 0.46 mmHg at 25 °C
Vapor Density: 3.4 (air = 1)
Relative Density: 0.956 g/mL at 20 °C
Solubility: Miscible with water
Partition Coefficient (Log Kow): -0.89
Auto-Ignition Temperature: 347 °C
Viscosity: 1.3 mPa·s at 25 °C

Stability and Reactivity

Stability: Stable under standard storage and handling conditions, risk of polymerization if heated or contaminated.
Polymerization Risk: May rapidly polymerize if exposed to heat, light, or certain chemical initiators.
Conditions to Avoid: Heat, sparks, open flame, contact with acids, bases, or oxidizing agents.
Incompatible Materials: Strong oxidizers, acids, peroxides, polymerization initiators.
Hazardous Decomposition Products: Burning creates toxic fumes including nitrogen oxides, carbon oxides.
Other Reactivity Notes: Catalysts, strong bases, or UV light can trigger hazardous reactions.

Toxicological Information

Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat) = 1,340 mg/kg
Skin Corrosion/Irritation: Causes skin irritation, prolonged or repeated contact increases irritation.
Serious Eye Damage/Irritation: Causes moderate to severe eye irritation, redness, tearing, or pain.
Respiratory/Skin Sensitization: Not classified as a respiratory or skin sensitizer under GHS, individual sensitivity possible.
Chronic Exposure: Repeated or prolonged exposure may lead to dermatitis, no known carcinogenic, teratogenic or reproductive effects recorded in major databases.
Carcinogenicity: Not listed by IARC, NTP, OSHA.
Other Effects: Inhalation of vapor or mist causes respiratory tract irritation.
Additional Data: No mutagenic effects observed in available studies.

Ecological Information

Toxicity to Aquatic Life: Harmful to aquatic organisms at significant concentration; LC50 (Daphnia magna, 48 hr) = >124 mg/L.
Persistence and Degradability: Expected to degrade in the environment, but breakdown may take time depending on conditions.
Bioaccumulation Potential: Little potential for significant bioaccumulation (Log Kow -0.89).
Mobility in Soil: Highly mobile in soil due to water solubility.
Other Environmental Effects: Avoid direct release to surface water or sewage systems.
Additional Notes: Monitor downstream water and soil for contamination after accidental spills.

Disposal Considerations

Disposal Methods: Incinerate under controlled conditions or send to an approved chemical waste facility; avoid landfill or uncontrolled discharge.
Container Disposal: Rinse drums and containers thoroughly before recycling or disposal, remove all residue, comply with all regional and national regulations.
Environmental Protection: Prevent waste from contaminating soil, ground or surface water. Use chemical waste labels.
Additional Notes: Consult local environmental authorities or waste disposal contractor for regulations applicable to your region.

Transport Information

UN Number: Not classified as dangerous goods by most international transport standards unless shipped in bulk.
Proper Shipping Name: N,N-Dimethylacrylamide
Transport Hazard Class: Not regulated as a hazardous material for ground, air, or sea transport, but always double-check with shipping providers.
Packing Group: Not assigned
Environmental Hazards: Not an environmentally hazardous substance per transport guidelines, always secure against spills.
Transport Precautions: Keep in tightly sealed, correctly labeled containers, avoid exposure to heat and sunlight during transit.
Special Precautions: Ensure secure stowage to prevent leaks or spills, follow local transportation safety requirements.

Regulatory Information

Inventory Listings: Listed in major chemical inventories including TSCA (US), EINECS (EU), ENCS (Japan), DSL (Canada), AICS (Australia).
OSHA Status: Not specifically regulated, general chemical safety applies.
SARA 311/312: Immediate (Acute) Health Hazard
SARA 313: Not subject to SARA Title III Section 313 reporting requirements.
REACH Status: Registered substance under REACH, check with EU suppliers.
California Proposition 65: Not listed.
Other Regulations: Comply with all local, state, and national regulations on handling, storage and disposal.
Labeling Requirements: Product label must display hazard symbols, signal words, hazard and precautionary statements, supplier information, and relevant safety instructions.