Material Safety Data Sheet for 1-Propyl-2,3-Dimethylimidazolium Bromide

Identification

Product Name: 1-Propyl-2,3-Dimethylimidazolium Bromide
Chemical Formula: C8H15BrN2
Synonyms: [1-Propyl-2,3-dimethylimidazolium] bromide
CAS Number: 875356-88-4
Manufacturer: Chemical suppliers and research labs specializing in imidazolium-based ionic liquids.
Recommended Use: Solvent, catalyst, laboratory reagent, electrochemical additive.
Emergency Contact: Refer to the supplier’s emergency number, local poison control, or emergency responders for specifics.

Hazard Identification

GHS Classification: Acute toxicity (oral and dermal) — may cause harm if swallowed or on skin contact.
Label Elements: Warning pictogram (exclamation mark); Signal word: Warning.
Hazard Statements: Causes skin and eye irritation, harmful if ingested or inhaled.
Precautionary Statements: Wear gloves/protective clothing. Avoid breathing dust or vapors. Avoid release to the environment.
Routes of Exposure: Skin contact, eye contact, ingestion, inhalation.
Effects of Overexposure: Irritation of eyes, nose, throat, skin. Headache, dizziness, stomach upset if swallowed.
Target Organs: Skin, eyes, respiratory system, gastrointestinal tract.
Emergency Overview: White to off-white solid, faintly sweet odor, presents risk if not handled using proper lab protocols.

Composition / Information on Ingredients

Chemical Name: 1-Propyl-2,3-dimethylimidazolium bromide
Common Name: Ionic liquid, bromide salt
CAS Number: 875356-88-4
Concentration: ≥98% pure in lab settings
Impurities: Related imidazolium derivatives at trace amounts, residual solvent below 1%

First Aid Measures

Skin Contact: Remove contaminated clothing, rinse skin for at least 15 minutes with running water. Seek medical advice.
Eye Contact: Rinse cautiously with water for several minutes, holding eyelids open. Remove contact lenses. Get medical attention.
Inhalation: Move person to fresh air. If coughing or breathing becomes difficult, seek immediate medical care.
Ingestion: Do not induce vomiting. Rinse mouth thoroughly. Drink water if conscious. Get medical help.
Most Important Symptoms: Irritation, burning sensation, redness, headache, drowsiness.
Protection for First Aiders: Use gloves and eye protection. Prevent personal contamination.

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam. Water spray for larger fires.
Unsuitable Media: Strong jets of water risk spreading contamination.
Specific Hazards: Emits hazardous decomposition products (e.g., hydrogen bromide, nitrogen oxides) under fire conditions.
Protective Equipment: Firefighters wear full protective gear, self-contained breathing apparatus.
Special Procedures: Remove containers from fire area if safe. Runoff can pollute waterways; dike for disposal.
Thermal Decomposition: Decomposes to toxic fumes above 250°C.

Accidental Release Measures

Personal Precautions: Avoid contact with skin and eyes. Ventilate area. Prevent inhalation of dust.
Protective Equipment: Nitrile gloves, safety goggles, lab coat or chemical-resistant coverall.
Environmental Precautions: Prevent entry into drains or watercourses. Notify authorities if large quantities released.
Clean-up Methods: Scoop up material with non-sparking tools. Place in proper waste container. Clean area with water and detergent.
Decontamination: Ventilate area thoroughly after clean-up.

Handling and Storage

Handling: Use in fume hood or well-ventilated lab. Avoid splashing, dust, and prolonged exposure. Keep away from heat, sparks, open flames.
Storage: Store in tightly-sealed containers in cool, dry, well-ventilated place. Keep away from strong oxidizers, acids, moisture.
Incompatible Materials: Strong oxidizing agents, strong acids, aluminum, and magnesium.
Hygiene Practices: Wash hands thoroughly after handling. Do not eat, drink, or smoke during use.

Exposure Controls and Personal Protection

Engineering Controls: Use chemical fume hood, local exhaust ventilation.
Exposure Limits: No ACGIH, OSHA, or NIOSH exposure limits set for this compound.
Personal Protective Equipment: Nitrile gloves, chemical splash goggles, laboratory coat, face shield for large quantities.
Respiratory Protection: Use NIOSH-approved respirator if airborne dust or splash risk exists.
Environmental Controls: Use procedures that minimize dust creation. Capture waste at source with filters.

Physical and Chemical Properties

Appearance: White to off-white hygroscopic crystalline powder
Odor: Slightly sweet or musty
Odor Threshold: No data available
pH: 5-7 (aqueous solution)
Melting Point: 125°C–140°C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable under typical use
Evaporation Rate: Not applicable
Flammability: Not classified as flammable
Vapor Pressure: Negligible at room temperature
Solubility: Soluble in water, methanol, ethanol
Partition Coefficient (log Kow): Not established
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: Above 250°C
Viscosity: Moderate (solution dependent)

Stability and Reactivity

Chemical Stability: Stable under normal lab conditions, but sensitive to moisture and prolonged exposure to air.
Reactivity: No dangerous reactions with common materials during proper storage and use.
Conditions to Avoid: Heat, open flame, direct sunlight, exposure to strong oxidizers, acids, and bases.
Hazardous Decomposition Products: Hydrogen bromide, carbon monoxide, nitrogen oxides.
Polymerization: Will not occur.

Toxicological Information

Routes of Entry: Skin, eyes, inhalation, ingestion.
Acute Toxicity: LD50 (oral, rat) estimated >500 mg/kg. May cause irritation and symptoms if swallowed.
Skin Corrosion/Irritation: May cause redness, drying, or cracking on prolonged contact.
Eye Damage/Irritation: Risk of redness, pain, watering.
Inhalation Risks: May cause respiratory tract irritation; limited data on vapor inhalation effects.
Sensitization: No evidence in animal models.
Chronic Effects: No reliable evidence for carcinogenicity, mutagenicity, or reproductive toxicity.
Other Health Effects: No known specific health hazard beyond acute irritation from exposure.

Ecological Information

Aquatic Toxicity: Harmful to aquatic life; risk increases with large accidental releases to water.
Persistence and Degradability: Limited data on natural breakdown; likely persists in soil/water due to ionic nature.
Bioaccumulation Potential: Low to moderate, depending on ecological conditions.
Mobility in Soil: Moderately mobile in waterlogged environments.
Environmental Precautions: Avoid large releases; take steps to prevent entry into waterways and sewers.
Other Adverse Effects: Do not dispose in open environments; long-term impact data limited.

Disposal Considerations

Waste Treatment: Incinerate in approved facility if possible. Use licensed disposal contractor.
Disposal of Containers: Rinse empty containers with suitable solvent, then treat as chemical waste.
Special Disposal Precautions: Regulatory authorities should guide disposal for large quantities.
Avoid Release: Prevent entry into municipal wastewater and natural habitats.
Regulatory Requirements: Comply with local, national, and regional hazardous waste regulations.

Transport Information

UN Number: Not regulated under most transport classifications.
Proper Shipping Name: Laboratory chemical, n.o.s. (not otherwise specified).
Transport Hazard Class: Not classified as a hazardous good under IATA, IMDG, or DOT.
Packing Group: Not assigned.
Special Precautions for Transport: Ship in well-sealed containers, away from incompatible substances. Avoid moisture, direct sunlight.
Additional Information: For research and development use, carriers may have internal restrictions.

Regulatory Information

OSHA Regulations: Not specifically listed, but observe general laboratory safety rules.
TSCA Status: Check if subject to reporting or registration under US TSCA.
EU Regulations: Not classified as hazardous under CLP/GHS, but local reporting may be required.
SARA/Title III: Not listed as extremely hazardous. Not subject to SARA 313 reporting for typical research quantities.
REACH Status: Contact supplier for REACH registration if using in the EU above threshold volumes.
State Right-to-Know: May appear on state-level chemical lists in some locations.
Other Requirements: Ensure documentation and labeling meets workplace safety standards.