Product Name: N-Propylimidazole
Chemical Formula: C6H10N2
CAS Number: 24549-06-2
Synonyms: 1-Propylimidazole, NPI
Recommended Use: Chemical research, intermediate for synthesis
Supplier: Contact chemical supplier for full address
Emergency Phone: Emergency response number provided by supplier on container label
GHS Classification: Flammable liquid (Category 3), Acute toxicity (oral, Category 4), Serious eye irritation (Category 2A), Skin irritation (Category 2)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor. Causes skin and eye irritation. Harmful if swallowed.
Pictograms: Flame, Exclamation Mark
Precautionary Statements: Keep away from heat, sparks, or open flame. Avoid breathing vapors. Wear gloves, goggles, and lab coat. Wash skin thoroughly after handling.
Chemical name: N-Propylimidazole
Concentration: More than 98%
Impurities: Water and related imidazoles, less than 1%
Stabilizers/Additives: None identified in most typical commercial samples
Other Names: 1H-Imidazole, 1-propyl-
Inhalation: Move person to fresh air. Seek medical attention if symptoms like coughing, headache, or dizziness appear.
Skin Contact: Wash with plenty of soap and water. Remove contaminated clothing. See a doctor if irritation persists.
Eye Contact: Rinse well with water for at least fifteen minutes, holding eyelids open. Get prompt medical help.
Ingestion: Rinse mouth. Do not force vomiting. Contact a physician or poison control center without delay.
Symptoms: Burning, stinging, redness, nausea, drowsiness are common signs after exposure.
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water spray
Specific Hazards: Vapors can catch fire easily. Heating can produce toxic vapors like nitrogen oxides.
Protective Equipment: Wear a full self-contained breathing apparatus and protective suit.
Other Advice: Use water spray to cool exposed containers. Control run-off water and avoid pollutants reaching drains.
Personal Precautions: Use gloves, goggles, and chemical splash apron. Ventilate area well. Remove ignition sources.
Environmental Precautions: Prevent material from seeping into drains or waterways. Report large releases to environmental authorities.
Cleanup Procedures: Absorb with inert material like sand or vermiculite. Scoop up and place in suitable container for disposal. Wash spill site with water after material pickup is complete.
Handling: Avoid swallowing, inhaling vapors, and skin or eye contact. Only handle indoors or in a chemical fume hood. Avoid sparking equipment.
Storage: Store in a tightly sealed container. Keep in a dry, cool, well-ventilated area away from sources of ignition and incompatible materials like oxidizers. Use corrosion-resistant shelves if possible.
Other Information: Store with appropriate warning signage. Limit access only to trained personnel.
Exposure Limits: No established occupational exposure limits for this compound. Use good industrial hygiene practices.
Engineering Controls: Local exhaust, fume hood, or explosion-proof ventilation strongly recommended.
Personal Protective Equipment: Safety goggles, impervious gloves, chemical-resistant lab coat, closed-toe shoes.
Hygiene Measures: Wash hands and face thoroughly after use. No eating or drinking in work area.
Appearance: Colorless to light yellow liquid
Odor: Distinct amine or imidazole-like odor
Melting Point: -34°C
Boiling Point: About 210°C
Flash Point: 93°C (closed cup)
Evaporation Rate: Slower than ether
Vapor Pressure: Low (less than 1 mmHg at 20°C)
Solubility: Miscible with water, ethanol, chloroform
Density: 1.01 g/cm³ at 20°C
pH: Alkaline (solution in water)
Chemical Stability: Remains stable at ordinary temperatures and pressures in tightly closed containers.
Thermal Decomposition: Produces toxic gases such as nitrogen oxides by strong heating or combustion.
Incompatible Materials: Strong oxidizing agents, acids, acid chlorides
Hazardous Reactions: Polymerization does not occur under normal usage.
Storage Concerns: Absorbs moisture. Prevent contamination by air or water for long-term storage.
Acute Toxicity: LD50 (oral, rat) estimated around 500-2000 mg/kg. Can cause nausea, vomiting, irritation.
Skin Corrosion/Irritation: Repeated contact leads to irritation or dermatitis.
Eye Damage/Irritation: Causes stinging, redness, watering.
Respiratory Effects: Inhalation of concentrated vapor brings headache, irritation, drowsiness.
Long-term Effects: No clear evidence for carcinogenicity or chronic toxicity with short-term industrial exposure. Always work under guidance.
Aquatic Toxicity: Harmful to aquatic life in high concentrations. Not persistent in water, so rapid dilution or breakdown possible.
Persistence/Degradability: Readily biodegradable in the environment, but local buildup can impact sensitive organisms.
Bioaccumulation: Not likely to accumulate in biological systems.
Wastewater Considerations: Prevent large discharges to municipal drains or open waterways.
Waste Disposal: Place waste residue and contaminated items in properly labeled containers. Hand over to certified chemical waste disposal companies.
Regulations: Comply with national, regional and local directives for hazardous waste.
Precautions: Never flush in regular trash or down the drain. Avoid open burning of hazardous residues.
UN Number: 2810 (Toxic Liquid, Organic, N.O.S.)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III—less risk than Class I or II, but still needs precautions
Labelling: Toxic and Flammable Liquid labels required on all packages
Special Requirements: Keep away from sparks and incompatible cargo like acids. Check for restrictions in air or water transport.
OSHA: Treated as hazardous under OSHA’s criteria
TSCA: Listed as a chemical substance under the Toxic Substances Control Act
REACH: Registered as required for import or manufacture in Europe
SARA Title III: Not listed as Extremely Hazardous, but reporting may be required for large releases
Other Designations: Follow all safety standards and rules for workplace chemical management
