Product Name: Didodecyl Dimethyl Ammonium Chloride
Chemical Family: Quaternary Ammonium Compound
Recommended Use: Disinfectant, biocide, sanitizer
Product Codes: Varies according to supplier
Manufacturer: Provided by supplier’s documentation or label
Synonyms: Didecyldimethylammonium chloride, DDAC
CAS Number: 7173-51-5
Emergency Contacts: Details vary by region, usually found on the shipment label or container
Telephone Number for Information: Provided as per supplier’s guidelines
Address: Always check the shipping documentation to get the specific address
Classification: Corrosive to skin and eyes, toxic to aquatic life
Hazard Statement: Causes severe skin burns and eye damage, harmful if swallowed, toxic to aquatic life with long lasting effects
Pictograms: Corrosive, Exclamation Mark, Environment
Signal Word: Danger
Precautionary Statements: Avoid breathing vapors or mists, wear protective gloves and eye protection, handle with care to avoid spillage, if in eyes rinse cautiously with water
Health Effects: Irritation to skin, eyes, respiratory tract; ingestion can produce nausea and vomiting
Environmental Effects: Toxicity toward aquatic organisms is a key risk, product should not enter drains
Potential Routes of Exposure: Skin and eye contact, inhalation, ingestion
Chemical Name: Didodecyl Dimethyl Ammonium Chloride
Concentration: Usually 50-80% in commercial solutions
Other Components: Water, stabilizers as required
CAS Number: 7173-51-5
EC Number: 230-525-2
Impurities: May include trace amounts of surfactants or inorganic salts, depending upon formulation
Inhalation: Move individual to fresh air, keep at rest, seek medical attention if symptoms persist, monitor breathing
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water for at least 15 minutes, seek medical advice if irritation remains
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, remove contact lenses if possible, call a poison center or doctor
Ingestion: Do not induce vomiting, rinse mouth, never give anything by mouth to an unconscious person, immediately seek medical assistance
Most Important Symptoms/Effects: Redness, burning sensation, pain, possible blindness in eyes, coughing or shortness of breath for inhalation exposure
Advice for Medical Personnel: Treat as a chemical burn, symptomatic and supportive care, no specific antidote
Flammability: Not considered flammable, may decompose at high temperatures
Suitable Extinguishing Agents: Water spray, dry chemical, carbon dioxide, foam
Hazards from Combustion: May release toxic vapors including hydrogen chloride, nitrogen oxides, possible carbon monoxide
Protective Equipment for Firefighters: Full protective gear including self-contained breathing apparatus
Special Procedures: Avoid inhaling combustion gases, control run-off water, cool containers with water spray to prevent bursting
Personal Precautions: Use appropriate personal protective equipment, ensure adequate ventilation, avoid contact with skin and eyes
Environmental Precautions: Prevent from entering sewers and watercourses
Methods for Cleaning Up: Contain spill with inert absorbent material, transfer to a suitable container for disposal, wash spill area thoroughly with water
Decontamination: Area should be ventilated, surfaces disinfected with soap and water after chemical removal
Emergency Procedures: Notify authorities if large spills threaten public water or safety
Handling: Wear chemical-resistant gloves, splash goggles, and protective clothing, use only in well-ventilated areas, avoid inhaling vapors, never eat or drink during application
Storage Conditions: Keep container tightly closed in a cool, dry, well-ventilated place, segregate from incompatible substances like strong oxidizers and acids
Storage Temperature: Store at room temperature away from direct sunlight
Incompatibilities: Strong acids, anionic surfactants, strong oxidants
Container Recommendations: Use original containers or compatible chemical-resistant materials
Hygiene Practices: Wash hands thoroughly after handling, remove contaminated clothing to avoid prolonged skin exposure
Occupational Exposure Limits: No established exposure limit, general ventilation and safe handling practices recommended
Ventilation: Mechanical exhaust or local ventilation to keep airborne concentrations low
Respiratory Protection: Use a suitable NIOSH/MSHA-approved respirator if mist or aerosol occurs
Eye Protection: Chemical safety goggles or face shield
Skin Protection: Impervious gloves (nitrile, PVC), chemical protective suit as needed
Other Protection: Emergency eyewash stations and safety showers close to work area
Work Practice Controls: Avoid generating mists; do not reuse containers for food or water
Form: Clear to pale yellow viscous liquid (in solution)
Odor: Mild, characteristic
pH: 6-8 (10% solution in water)
Boiling Point: Above 100°C (212°F)
Melting Point: Less than 0°C (32°F) for aqueous solutions
Density: 0.95–1.00 g/cm³
Solubility in Water: Completely soluble, may foam
Vapor Pressure: Negligible at standard temperatures
Flash Point: Above 100°C (non-flammable aqueous solution)
Partition Coefficient (log Kow): Not readily available but classified as surface active
Chemical Stability: Stable under normal conditions, can degrade under strong UV or high temperatures
Reactivity: Can react with strong oxidizers, acids, and anionic soaps
Conditions to Avoid: Extreme heat, direct sunlight, incompatible materials
Decomposition Products: Hydrogen chloride, carbon monoxide, carbon dioxide, nitrogen oxides
Hazardous Polymerization: Will not occur
Incompatibilities: Anionic detergents, reducing agents
Routes of Entry: Absorbed through skin, eyes, inhalation, ingestion
Acute Toxicity: LD50 oral (rat) 238 mg/kg, dermal toxicity may be lower due to corrosivity
Skin Corrosion/Irritation: Causes severe burns
Eye Damage/Irritation: Causes serious eye irritation or damage
Respiratory Sensitization: Inhalation could trigger bronchospasm in sensitive persons
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, OSHA
Mutagenicity: No data suggesting mutagenicity in humans
Chronic Effects: Prolonged exposure may cause contact dermatitis or other skin disorders
Other Information: Risk of aspiration in ingestion cases
Ecotoxicity: Very toxic to aquatic life, toxic in both acute and chronic exposures
Persistence and Degradability: Not readily biodegradable, can persist in natural waters and sediments
Bioaccumulation: Potential for bioaccumulation in aquatic organisms
Mobility in Soil: Varies, product can bind to soil particles and migrate with groundwater if spilled
Aquatic Toxicity Data: LC50/EC50 fish and daphnia: below 1 mg/L
Other Adverse Effects: Can disrupt algae growth and affect fish gill membranes
Waste Treatment Methods: Incineration at approved facilities or hazardous waste landfill as per local regulation
Disposal of Containers: Triple rinse, puncture, and dispose via approved reconditioner or recycler, never reuse for other purposes
Sewage Disposal: Avoid discharge to the environment, do not flush to drains
Special Precautions: Consult local, state, and federal regulations before disposal
Waste Classification: Hazardous waste (may require special permits)
UN Number: 2920
UN Proper Shipping Name: Corrosive Liquid, flammable, n.o.s. (Contains Didodecyl Dimethyl Ammonium Chloride)
Transport Hazard Class: 8 (Corrosive), may also have secondary 6.1 (toxic) or 9 (environmental hazard) depending on concentration
Packing Group: II or III depending on concentration
Marine Pollutant: Yes
Special Precautions: Keep separated from foodstuffs, animal feed and incompatible materials
Labeling Requirements: Corrosive mark and environmental hazard symbol if shipped
OSHA Status: Classified as hazardous under OSHA Hazard Communication Standard
TSCA (USA): Listed
EINECS (EU): Listed
SARA Title III: May appear under Section 302 (extremely hazardous), Section 313 (toxic chemical release inventory) depending on the formulation
RCRA: Considered hazardous waste upon disposal
WHMIS (Canada): Included as corrosive and toxic
REACH (EU): Registration required for importing or manufacturing in Europe
Other National Regulations: Product subject to chemical control and environmental protection regulations in most jurisdictions
