Product Name: Diallyldimethylammonium Chloride
Chemical Formula: C8H16ClN
Synonyms: DADMAC, Diallyldimethylammonium chloride solution
CAS Number: 7398-69-8
Recommended Use: Used in water treatment, paper manufacturing, and as a monomer in polymerization processes.
Manufacturer Contact: Always reference your own supplier or manufacturer for full emergency contact details, available 24/7 for safety support.
GHS Classification: Skin irritation, Eye irritation, Acute toxicity if ingested.
Hazard Statements: Causes skin and eye irritation. May be harmful if swallowed or inhaled. Avoid release into environment. Direct contact can cause discomfort or burns depending on concentration.
Precautionary Statements: Wear suitable gloves, eye protection, and face shield during use. Never inhale mist or vapor. Store locked up and out of reach of children.
Pictograms: Exclamation Mark, Corrosive Symbol. Handle with basic industrial hygiene practices.
Emergency Overview: Pale yellow to colorless liquid with faint amine odor. All spills and exposures deserve attention, even if health risks often seem low in diluted form.
Chemical Name: Diallyldimethylammonium chloride
Concentration: Commercial solutions typically between 40%–65% DADMAC by weight; balance is water.
Impurities: Trace levels of residual monomers or Chloride are possible, dependent on production process.
Other Components: No classified hazardous impurities expected above regulatory levels when provided from established suppliers.
Inhalation: Move affected person to fresh air. Seek medical attention if symptoms persist, such as coughing or wheezing.
Skin Contact: Rinse skin thoroughly with water. Remove contaminated clothing and wash before reuse. Water-based solutions typically rinse easily.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting eyelids during rinsing. Get prompt medical evaluation if irritation continues.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical treatment, especially when ingesting concentrated solutions.
Personal Protection for Rescuers: Use gloves and splash protection, especially for concentrated material. Have emergency eyewash and shower accessible wherever DADMAC is stored or handled.
Suitable Extinguishing Media: Water spray, foam, carbon dioxide or dry chemical extinguishers work for fires in areas where DADMAC is stored. Focus on area, not on direct chemical volatility.
Unsuitable Extinguishing Media: Direct high-pressure water jet may spread spilled liquid.
Special Hazards: Combustion may release toxic fumes, including hydrogen chloride and oxides of nitrogen and carbon.
Special Protective Equipment: Firefighters should use self-contained breathing apparatus (SCBA) and protective clothing when working near hot DADMAC.
Advice for Firefighting: Evacuate the area if possible, as some breakdown products can irritate airways.
Personal Precautions: Wear chemical-resistant gloves, goggles, and protective clothing to avoid skin and eye contact. Provide adequate ventilation.
Environmental Precautions: Prevent entry into sewers, watercourses or soil. Alert local authorities if a large spill could affect the water supply.
Methods for Clean-Up: Soak up spill with inert absorbent material (sand, earth, or vermiculite). Place in chemical waste container. Wash spill area thoroughly with water.
Large Spill: Dike and pump as much as possible into salvage containers. Collect residues for disposal per regulations.
Decontamination: Use water for final cleaning while observing all proper disposal practices.
Safe Handling: Wear standard personal protective equipment when handling. Avoid breathing vapors or mist. Wash hands after use and before eating or drinking.
Technical Measures: Use only in well-ventilated areas. Avoid sources of ignition.
Safe Storage: Store in original tightly closed containers away from acids, oxidizing agents and strong bases. Keep between 2°C and 30°C in cool and dry location.
Incompatible Materials: Avoid contact with strong oxidizers, anionic materials, or acidic substances. These could cause dangerous reactions or product degradation.
Storage Life: Most solutions are stable for at least one year under proper storage. Always check for signs of cloudiness or phase separation.
Engineering Controls: Provide good local ventilation in areas with vapor or mist. Use chemical fume hoods for high concentrations or open handling.
Occupational Exposure Limits: No specific regulatory threshold set for DADMAC at most agencies. General dust or vapor exposure limits apply as for nuisance particulates.
Personal Protective Equipment: Safety goggles or face shield, chemical-resistant gloves, and impervious clothing in case of splash risk. Respiratory protection recommended above exposure limits or during cleanup of large spills.
Hygiene Measures: Change out of contaminated clothing before leaving work. Do not eat, drink or smoke while handling chemicals.
Appearance: Colorless to pale yellow liquid
Odor: Slight, characteristic amine odor
Odor Threshold: Not determined
pH: 5.0–7.0 for typical 50% solution
Melting Point / Freezing Point: -5°C (23°F) for typical solutions
Boiling Point: Approximately 100–102°C (212–216°F), depends on solution strength
Flash Point: Not flammable in water solutions
Evaporation Rate: Comparable to water
Flammability: Not classified as flammable
Upper/Lower Flammability Limits: Not determined for aqueous solution
Vapor Pressure: Low at 20°C
Solubility: Fully soluble in water
Partition Coefficient (n-octanol/water): Not available
Auto-Ignition Temperature: Data not available
Decomposition Temperature: May degrade above 140°C
Viscosity: Depends on concentration, generally higher than water
Chemical Stability: Stable under normal storage and handling conditions. Sensitive to strong acids and oxidizers.
Hazardous Reactions: Rapid reaction possible with oxidizing substances or anionic surfactants. May produce heat, gas, or toxic byproducts.
Conditions to Avoid: Excessive heat, freezing, strong oxidizing environments.
Incompatible Materials: Strong oxidizers (chlorine, peroxides), acids, and reactive anionic compounds.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, hydrogen chloride.
Routes of Exposure: Skin and eye contact most common, inhalation of mist, accidental ingestion.
Acute Toxicity: Moderately low toxicity by dermal and oral routes for diluted forms. Concentrated solutions irritate tissue.
Skin Corrosion/Irritation: Causes irritation, may cause burns at high concentrations.
Eye Damage/Irritation: Causes pain, redness, and tearing.
Respiratory Sensitization: May cause coughing or sore throat if inhaled; avoid breathing aerosol.
Repeated Exposure: Long-term health effects uncommon in regular industry use, provided PPE is used.
Carcinogenicity: Not listed as a carcinogen by IARC, NTP or OSHA.
Other Effects: Users sometimes report short-term headaches or dizziness in poorly ventilated areas due to odor.
Ecotoxicity: Harmful to aquatic life in large quantities. Not rapidly biodegradable.
Aquatic Information: Fish and invertebrates may suffer adverse effects at elevated concentrations.
Persistence and Degradability: Product shows some persistence; breakdown depends on environmental conditions.
Bioaccumulative Potential: Likelihood of significant bioaccumulation is low due to water solubility and large molecular structure.
Mobility in Soil: High water solubility means it can move with runoff if spilled in quantity.
Other Adverse Effects: Spills threaten local water treatment processes. Always use care near open drains or creeks.
Waste Treatment Methods: Handle as hazardous waste unless determined otherwise by proper assessment. Never pour unused product down open drains.
Container Disposal: Empty containers hold product residues, and all cleaning and handling precautions apply even after the container appears empty.
Recommended Disposal: Incineration or chemical treatment by licensed waste contractors. Dilute water-based waste may, in some regions, be treated in accordance with local regulations under controlled conditions.
Regulatory Framework: Review local, regional and national regulations for current hazardous waste status as this changes by location.
UN Number: Not classified as dangerous goods for most transport modes.
Proper Shipping Name: Diallyldimethylammonium chloride solution, not regulated under DOT, ADR, IMDG, or IATA at concentrations below standard thresholds.
Hazard Class: None assigned at standard industrial concentrations.
Packing Group: Not applicable.
Special Requirements: Use sealed, robust containers. Protect from physical damage during transit. Avoid transport with incompatible substances.
Emergency Response Guide: Refer to product transport documents for shipper-specific emergency advice.
Safety, Health, and Environmental Regulations: Subject to the requirements of OSHA Hazard Communication Standard in the US (29 CFR 1910.1200).
SARA Title III Status: Not listed under sections 302, 304, or 313. All handling and reporting should align with industry standards.
TSCA Inventory: Listed.
EINECS/ELINCS: Listed in Europe.
REACH Status: Registered.
Other Regulatory Listings: Check with local regional authorities and international regulations to determine any additional requirements, including labeling and personal protective equipment mandates.
Label Requirements: Standard labeling for chemical irritants, always with clear hazard pictograms and statements to maximize safety for handlers and bystanders.
