Product Name: 1-Decyl-3-Methylimidazolium Thiocyanate
Chemical Formula: C15H27N3S
Synonyms: [DMIM][SCN], 1-Decyl-3-methylimidazolium isothiocyanate
CAS Number: 648926-93-6
Use: Laboratory reagent, ionic liquid for chemical synthesis, solvent applications
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Classification: Eye irritation, Skin irritation, Acute toxicity (oral and dermal), Aquatic toxicity (chronic)
Hazard Statements: Causes serious eye irritation. Causes skin irritation. Harmful if swallowed or absorbed through skin. May cause respiratory tract irritation. Harmful to aquatic life with long-lasting effects.
Pictograms: Exclamation mark, Environment
Signal Word: Warning
Precautionary Statements: Avoid breathing dust/fume/vapors. Wash hands thoroughly after handling. Use only outdoors or in a well-ventilated area. Avoid release to the environment. Wear protective gloves, clothing, and eye protection.
Chemical Name: 1-Decyl-3-Methylimidazolium Thiocyanate
CAS Number: 648926-93-6
EC Number: Not available
Concentration: ≥ 95% by weight
Impurities: Trace residual solvents or moisture may be present
Inhalation: Move exposed person to fresh air. Keep at rest and comfortable for breathing. Get medical attention if symptoms persist.
Skin contact: Remove contaminated clothing. Rinse affected skin with plenty of water for at least 15 minutes. Seek medical advice if irritation develops or persists.
Eye contact: Immediately flush eyes with water for at least 15 minutes, lifting upper and lower eyelids occasionally. Remove contact lenses if present and easy to do. Get medical attention.
Ingestion: Rinse mouth with water. Never give anything by mouth to an unconscious person. Call poison center or physician if you feel unwell.
Suitable Extinguishing Media: Dry chemical, CO2, foam, or water spray
Unsuitable Extinguishing Media: Straight water streams may spread fire
Hazards from combustion: Thermal decomposition may release toxic and irritating gases, including nitrogen oxides, sulfur oxides, hydrogen cyanide, carbon monoxide, carbon dioxide
Protective Equipment for Firefighters: Firefighters need positive pressure self-contained breathing apparatus and full protective clothing
Special procedures: Cool exposed containers with water spray. Avoid release of contaminated water to drains or waterways.
Personal Precautions: Evacuate area, ventilate, and remove sources of ignition. Wear suitable protective equipment including gloves, eye protection, and respiratory protection
Environmental Precautions: Prevent entry to drains, watercourses, and soil
Containment and Clean-up: Absorb with inert material (sand, earth, vermiculite). Collect in labeled containers. Wash affected area with water. Dispose of waste properly, in accordance with regulations.
Handling: Avoid breathing vapors or contact with skin and eyes. Do not eat, drink, or smoke while using. Use with local exhaust ventilation. Keep containers tightly closed when not in use
Storage: Store in a cool, dry, well-ventilated place. Keep away from incompatible substances including strong acids, bases, oxidizers. Protect from moisture, direct sunlight, and sources of ignition. Store in original, clearly labeled container.
Exposure Limits: No established occupational exposure limits. Consider local regulations
Engineering Controls: Use fume hood, local exhaust, or process enclosure
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles or face shield, lab coat or appropriate protective clothing, suitable respiratory protection if ventilation is inadequate
Hygiene Measures: Wash hands before breaks and after working with the substance. Remove contaminated clothing and wash before reuse.
Appearance: Colorless to pale yellow viscous liquid
Odor: Faint, characteristic
Molecular Weight: 281.46 g/mol
Melting Point: 2-10°C
Boiling Point: Decomposes before boiling
Flash Point: Not determined; can vary but usually above 100°C
Solubility: Soluble in water and polar organic solvents
Density: 1.02-1.05 g/cm³ at 20°C
pH: Neutral to slightly acidic (when dissolved in water)
Vapor Pressure: Negligible at room temperature
Viscosity: High; varies with temperature
Chemical Stability: Stable under normal conditions of use and storage
Reactivity: Reacts with strong oxidizing and reducing agents
Conditions to Avoid: High temperatures, open flames, incompatible materials, moisture
Hazardous Decomposition: Toxic fumes; nitrogen oxides, sulfur oxides, imidazole derivatives, hydrogen cyanide
Polymerization: Not expected to occur
Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Irritation to skin, eyes, and respiratory tract; may be harmful if swallowed or absorbed through skin
Skin/Eye Irritation: Moderate to severe irritation possible
Sensitization: May cause sensitization by skin contact
Chronic Effects: Data limited; prolonged or repeated exposure may cause dermatitis or affect organ function
Other Effects: No information on carcinogenic, mutagenic, or reproductive toxicity, based on available data
Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Does not readily biodegrade
Bioaccumulative Potential: May accumulate in aquatic organisms
Mobility in Soil: High solubility could lead to mobility in soil and water
Other Adverse Effects: Data on ozone depletion and global warming potential are not available
Disposal Methods: Collect and dispose in accordance with local, regional, and national regulations. Prefer incineration at licensed facility.
Contaminated Packaging: Rinse containers and dispose as hazardous waste. Do not reuse empty containers.
Environmental Precautions: Prevent release into the environment.
UN Number: Not regulated under UN or DOT for most forms
Proper Shipping Name: Not classified as dangerous goods for transport
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Marine Pollutant: Not specifically listed, but care recommended due to aquatic toxicity
Special Precautions: Avoid transport with strong oxidizers, acids, or bases. Use secure, clearly labeled packaging.
EU Regulations: Not listed in EINECS/ELINCS; not classified under CLP Regulation at time of publication; consult updated REACH status
US Regulations: Not on TSCA inventory; for research and development use only
Other National Listings: Not classified in IARC, NTP, or OSHA carcinogen lists
Labelling Requirements: Hazard pictograms, hazard and precautionary statements in compliance with local laws
Worker Protection Regulations: Observe exposure controls and personal protective equipment standards specified by OSHA, NIOSH, and other applicable agencies
