Product Name: 1,3-Dimethylimidazolium Dicyanamide
Chemical Family: Ionic Liquid
Synonyms: Dimethylimidazolium Dicyanamide, [C1C1im][DCA]
CAS Number: 934611-99-7
Manufacturer: Listed on supplier-specific documentation
Recommended Use: Industrial solvent, catalyst in organic synthesis, research applications
Emergency Contact: Refer to local emergency numbers and poison centers for immediate support
GHS Classification: Acute toxicity – Oral Category 4; Skin irritation Category 2; Eye irritation Category 2; Environmental Hazard – Aquatic Chronic Category 3
Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes skin and eye irritation; toxic to aquatic life with long lasting effects
Pictograms: Exclamation mark; Environmental hazard symbol
Precautionary Statements: Avoid contact with skin and eyes; wash hands thoroughly after handling; avoid release to the environment; wear protective gloves and eye protection
Component: 1,3-Dimethylimidazolium Dicyanamide
CAS Number: 934611-99-7
Concentration: >98% by weight
Other Trace Ingredients: Residual solvents and synthesis byproducts below 2%
Inhalation: Move to fresh air and keep comfortable for breathing, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek treatment if irritation develops
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, consult a healthcare provider
Ingestion: Rinse mouth, do not induce vomiting, give water only if person is fully conscious, call a poison control center or physician immediately
Most Important Symptoms: Nausea, abdominal pain, irritation to eyes/skin, coughing
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, alcohol-resistant foam
Unsuitable Extinguishing Media: Direct water stream can spread burning material
Specific Hazards: Burning releases toxic vapors, including nitrogen oxides, carbon oxides, and cyanide gases
Firefighter Protection: Use self-contained breathing apparatus and full protective gear
Special Firefighting Methods: Isolate area, avoid inhalation of vapors, cool endangered containers with water spray from a safe distance
Personal Precautions: Wear chemical-resistant gloves, goggles, and respirator if dust/aerosol is generated
Environmental Precautions: Prevent entry into sewers, groundwater, and surface water
Containment: Collect spilled material using inert absorbent such as sand or earth
Cleanup Methods: Scoop up residue and place in a properly labeled chemical waste container for disposal
Decontamination: Wash spill site thoroughly after removal of material
Handling: Avoid breathing dust, vapor, mist, or gas; do not get on skin, eyes, or clothing; use with adequate ventilation
Storage: Keep container tightly closed and stored in a cool, dry, well-ventilated area away from incompatible substances like strong acids, oxidizers, and bases
Other Precautions: Keep away from sources of ignition; ground all equipment containing material
Engineering Controls: Use process enclosures, local exhaust ventilation, or other controls to keep airborne levels below recommended exposure limits
Personal Protective Equipment: Chemical-resistant gloves, protective clothing, safety goggles, face shield if necessary, respiratory protection for dusty conditions
Hygiene: Wash hands before breaks and after work, do not eat or drink while using this chemical, wash contaminated clothing before reuse
Threshold Limit Values: No Occupational Exposure Limits established; treat as nuisance dust or use general TLVs for organic compounds
Appearance: Colorless to pale yellow liquid or crystalline solid
Odor: Faint, characteristic mild odor
pH: Neutral to slightly alkaline (solution in water)
Melting Point/Freezing Point: ~15-17°C
Boiling Point/Range: Decomposes before boiling
Flash Point: >180°C (closed cup)
Evaporation Rate: Not applicable (non-volatile)
Flammability: Not easily flammable but combustible
Vapor Pressure: Very low at 20°C
Vapor Density: Not determined
Relative Density: 1.09 – 1.12 g/cm³ at 20°C
Solubility: Miscible with water and polar organic solvents
Partition Coefficient n-octanol/water: Not available
Decomposition Temperature: >200°C
Viscosity: Moderate, liquid at room temperature
Chemical Stability: Stable under recommended conditions of handling and storage
Reactivity: No hazardous polymerization; can react with strong acids and oxidizing agents
Conditions to Avoid: Excessive heat, contact with incompatible chemicals, open flame
Hazardous Decomposition Products: Toxic fumes of hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide
Incompatible Materials: Strong oxidizers, acids, bases, water-reactive substances
Acute Toxicity: Oral LD50 (rat) >300 mg/kg, can cause harm if swallowed; inhalation data not sufficiently available
Skin Corrosion/Irritation: May cause local redness, discomfort on extended contact
Serious Eye Damage/Irritation: Causes discomfort, temporary visual disturbance possible
Respiratory Sensitization: Prolonged inhalation may irritate airways
Skin Sensitization: No evidence of allergic skin reaction under normal conditions
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity: Insufficient data
Reproductive Toxicity: Not tested
Specific Target Organ Toxicity: No target organ toxicity reported with available information
Other Information: Can cause headache, nausea, gastrointestinal upset from acute exposure
Toxicity: Toxic to aquatic organisms with possible long-term adverse effects in the aquatic environment (aquatic LC50, Daphnia magna: 5–50 mg/L)
Persistence and Degradability: Moderately persistent, partial biodegradation over several weeks in natural settings
Bioaccumulative Potential: Low potential for bioaccumulation due to solubility and low octanol-water partition coefficient
Mobility in Soil: Expected to move through soil; may contaminate water if released in large quantities
Other Adverse Effects: Avoid uncontrolled release to water and soil to prevent environmental damage
Waste Treatment Methods: Dispose of chemical in accordance with local, regional, and national regulations; incineration preferred for large quantities
Product Disposal: Use licensed chemical waste contractor; do not discharge into drains, water courses, or ground
Contaminated Packaging: Containers should be emptied and triple-rinsed before recycling or disposal; follow all regulatory guidance
Special Considerations: Avoid contact with incompatible materials during disposal to prevent hazardous reactions
UN Number: Not classified as a dangerous good for transport (non-hazardous under ADR, RID, IMDG, IATA)
UN Proper Shipping Name: Not regulated
Transport Hazard Class(es): Not applicable
Packing Group: Not applicable
Environmental Hazards: See ecological information; must prevent spills during shipment
Special Precautions for User: Transport in closed, leak-proof containers to avoid accidental release; avoid transporting with foodstuffs and feeds
US Regulations: Not listed on US TSCA inventory, subject to reporting under CERCLA or SARA Title III if released at significant levels
European Union: Classified under Regulation (EC) No 1272/2008; REACH registration may apply for tonnage thresholds
International Inventories: Check national chemical inventories for registration status in target jurisdictions
Labelling Requirements: Follow GHS and local hazard labelling laws, including hazard pictograms, signal word, hazard statements, precautionary statements
Workplace Controls: Ensure Safety Data Sheet availability at workplace, routine employee training on safe handling and emergency measures
