Product Name: Diethyl diallyl ammonium chloride
Chemical Family: Quaternary ammonium compound
Synonyms: DEDAAC, diallyldiethylammonium chloride
CAS Number: 7398-69-8
Recommended Use: Used in water treatment products, textile auxiliaries, paper chemicals, and as a monomer for polymer synthesis.
Supplier Information: Manufacturer’s details should always be confirmed for specific supplier contact information.
Emergency Contact: National chemical emergency hotline for immediate response to hazardous exposure and leaks.
Classification: Causes serious eye irritation. Harmful if swallowed, inhaled, or absorbed through skin. Skin irritant. Not classified as flammable but may support combustion.
Pictogram: Exclamation mark indicating acute toxicity and eye irritation.
Signal Word: Warning
Hazard Statements: May cause eye and skin irritation, possible gastrointestinal discomfort if ingested. Inhalation may result in respiratory irritation.
Precautionary Statements: Avoid contact with skin, eyes, and clothing. Do not eat, drink, or smoke during use. Wear suitable protective equipment.
Chemical Identity: Diethyl diallyl ammonium chloride
Concentration: 100% (pure substance), some commercial solutions may contain 50-80% in water
CAS Number: 7398-69-8
Impurities: Residual water, trace monomer impurities from manufacturing process
Molecular Formula: C10H20ClN
Molecular Weight: 189.73 g/mol
Inhalation: Move to fresh air. Seek medical attention for symptoms like coughing, shortness of breath, or chest discomfort. Remove contaminated clothing.
Skin Contact: Remove contaminated clothing immediately. Rinse skin with soap and water. Get medical attention if irritation occurs or persists.
Eye Contact: Flush eyes thoroughly with water for at least 15 minutes while lifting eyelids. Remove contact lenses if worn and easy to do so. Obtain medical attention.
Ingestion: Rinse mouth with water. Do not induce vomiting unless instructed by medical personnel. Seek immediate medical attention and provide label to medical responders.
Most Important Symptoms: Redness, irritation, blurred vision, skin rash, nausea if swallowed.
Suitable Extinguishing Media: Water spray, dry chemical, foam, or carbon dioxide. Use extinguishing agents suitable for surrounding fire.
Unsuitable Media: Do not use water jet as it may spread the substance.
Specific Hazards: Produces toxic gases (hydrogen chloride, nitrogen oxides, carbon oxides) under fire conditions. Thermal decomposition may cause container rupture.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and chemical protective clothing to prevent exposure
Special Procedures: Cool unopened containers with water spray to prevent rupture due to heat. Prevent run-off from entering drains or watercourses.
Personal Precautions: Evacuate area and limit access. Ensure proper ventilation in the spill area. Wear chemical splash goggles, gloves, and protective clothing. Avoid breathing dust or fumes.
Environmental Precautions: Prevent further leakage or spillage if safe to do so. Do not allow material to enter sewage system, surface waters, or soil. Inform environmental authorities if large releases occur.
Containment and Clean-Up: Absorb with inert materials (sand, earth, vermiculite). Collect in suitable containers for disposal. Wash spill area with water after pick-up. Dispose according to local regulations.
Decontamination: Use water and detergent to treat surfaces; avoid solvents that may increase volatility or toxicity.
Handling: Wear chemical-resistant gloves, safety goggles, and lab coats. Wash hands after handling. Avoid spills, splashes, or aerosols. Do not eat, drink, or smoke in area of use. Use only with adequate exhaust ventilation. Minimize dust and avoid inhaling vapors or spray mist.
Storage: Store in tightly closed containers in cool, dry, well-ventilated areas. Keep away from incompatible materials: strong oxidizing agents, strong acids, and bases. Protect from direct sunlight and freeze-thaw cycles. Store at room temperature or below 30°C for liquid preparations.
Incompatible Materials: Avoid mixing with oxidizers, halogens, or reactive chemicals which may cause dangerous reactions.
Occupational Exposure Limits: No specific occupational exposure limits established; general chemical hygiene practices recommended.
Engineering Controls: Use local exhaust ventilation and process enclosures to control airborne exposure. Monitor air concentrations for dust and vapors.
Personal Protective Equipment: Wear chemical-resistant gloves (nitrile, neoprene), splash goggles or face shield, long-sleeved clothing, and chemical-resistant apron. In case of inadequate ventilation or risk of inhalation, use an approved organic vapor respirator.
Hygiene Measures: Wash hands and face frequently, especially before eating or drinking. Remove and wash contaminated clothing before reuse.
Appearance: Clear and colorless to pale yellow liquid (commercial solution) or white crystalline solid (pure form)
Odor: Faint ammoniacal or fishy odor
pH: 4-7 (in aqueous solution)
Melting Point/Freezing Point: 190–192°C (pure compound)
Boiling Point and Range: Not applicable; decomposition before boiling
Solubility: Readily soluble in water, limited solubility in organic solvents
Density: 1.05-1.10 g/cm³ (solution)
Vapor Pressure: Negligible under ambient conditions
Evaporation Rate: Not established
Flash Point: Non-flammable, no flash point detected in standard tests
Partition Coefficient (log Kow): Not significantly bioaccumulative
Decomposition Temperature: >200°C (thermal breakdown).
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Reacts with strong oxidizing agents and strong alkalis. May polymerize on contact with free radical initiators.
Hazardous Decomposition Products: Hydrogen chloride, nitrogen oxides, carbon monoxide, and carbon dioxide upon heating or burning.
Conditions to Avoid: Exposure to heat, sparks, or open flames. Stagnant air and moisture may cause degradation.
Polymerization: May occur with strong heat or presence of initiators, resulting in vigorous reaction.
Acute Toxicity: Low oral toxicity (LD50 > 1000 mg/kg in rats), may cause gastrointestinal upset if swallowed
Skin Corrosion/Irritation: Causes mild to moderate irritation; prolonged or repeated exposure may lead to dermatitis
Eye Damage/Irritation: Causes irritation, redness, and watering; risk of corneal injury with direct contact
Respiratory Sensitization: Inhalation of powders or mists may cause nose and throat irritation
Chronic Toxicity: Not classified as carcinogenic or mutagenic in standard animal studies. No evidence of reproductive toxicity.
Other Effects: Prolonged exposure can lead to skin dryness or cracking.
Toxicity to Aquatic Life: Harmful to aquatic organisms, may cause long-term adverse effects in aquatic environments
Persistence and Degradability: Readily biodegradable in water under aerobic conditions. Some risk for bioaccumulation in aquatic organisms is considered low.
Mobility in Soil: High solubility in water, moderate to high mobility in soil and groundwater, possible contamination if released uncontrolled.
Bioaccumulation: Not considered significant; log Kow suggests low potential
Other Adverse Effects: No known ozone depletion or global warming impact; monitor for eutrophication risk if entering waterways.
Waste Disposal Methods: Dispose of contents and container in accordance with local, regional, national, and international regulations. Incineration in a chemical incinerator with afterburner and scrubber is preferred for contaminated residue.
Packing Materials: Clean packaging may be recycled or disposed of as ordinary industrial waste, based on product residue assessment.
Contaminated Materials: Absorbent materials and PPE contaminated with DEDAAC must be handled as hazardous waste.
Sewage Disposal: Do not discharge untreated into drains, waterways, or soil.
UN Number: Not regulated as a dangerous good under most international transport regulations for pure or dilute forms.
Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (in some jurisdictions)
Transport Hazard Class: Not classified for transport hazard unless solution classified under local regulations
Packing Group: Varies depending on concentration and jurisdiction. Check with local authorities.
Special Precautions: Avoid release during transport; ensure packaging is secure and compatible.
EU Regulation (REACH): Product may require registration or notification under EU chemical safety laws. Restrictions may apply to environmental releases, occupational exposure limits, or specific handling protocols.
OSHA (USA): Classified under non-hazardous chemical, but general safety and handling requirements apply.
TSCA (USA): Listed on the Toxic Substances Control Act; ensure appropriate documentation and reporting for imports, exports, and industrial use.
WHMIS (Canada): Classification: D2B (Toxic material causing other toxic effects); Safety Data Sheet required in the workplace.
Other Local Regulations: Consult national and regional agencies for standards relating to storage, handling, discharge, and worker safety. Labeling and MSDS provision required by law in most countries.
