Material Safety Data Sheet: 1-Sulfobutyl-3-Butylimidazolium Hydrosulfate

1. Identification

Product Name: 1-Sulfobutyl-3-Butylimidazolium Hydrosulfate
Synonyms: SBIMHSO4, sulfo-alkyl imidazolium salt
Recommended Use: Laboratory chemical, ionic liquid applications, specialty solvent
Supplier Details: Manufacturer’s name, address, emergency contact number
Product Code: Registration number, batch identification, catalog reference
Emergency Contact: Chemical emergency service, poisoning center information, company contact for safety advice

2. Hazard Identification

GHS Label Elements: Signal word, pictograms, hazard statements (may cause skin irritation, eye irritation, respiratory discomfort)
Physical Hazards: Non-flammable liquid, low volatility, low vapor pressure
Health Hazards: Prolonged exposure can lead to skin or eye irritation, ingestion can be harmful
Environmental Hazards: Toxic to aquatic organisms, possible long-term adverse effects in the aquatic environment
Specific Target Organ Toxicity: Can affect mucous membranes, upper respiratory tract,
Precautionary Statements: Avoid contact with skin and eyes, use in ventilated spaces, do not release to environment

3. Composition / Information on Ingredients

Chemical Name: 1-Sulfobutyl-3-Butylimidazolium Hydrosulfate
Chemical Formula: C11H22N2O5S2
CAS Number: 262297-13-2
Concentration: Over 95% purity
Impurities: Water (<1%), minor inorganic salts (<0.2%)
Other Identifiers: Molecular weight, structural formula, EC Number

4. First Aid Measures

Eye Contact: Rinse opened eye with running water for at least 15 minutes, remove contact lenses if present, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash affected skin with plenty of soap and water, medical advice necessary for irritation or rash
Inhalation: Move person to fresh air, maintain unobstructed breathing, give oxygen if breathing is difficult, consult physician
Ingestion: Rinse mouth with water, drink water to dilute, do not induce vomiting, seek medical help immediately
Most Important Symptoms: Irritation, redness, burning sensation, possible allergic reaction
Notes for Doctors: Treat symptomatically, provide supportive care, monitor vital signs and organ function

5. Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, foam, carbon dioxide, water spray
Unsuitable Media: Direct water jet (may spread product), high-pressure streams
Hazards from Combustion: Releases toxic fumes such as sulfur oxides, nitrogen oxides, and carbon monoxide
Protective Equipment: Full protective suit, self-contained breathing apparatus
Special Procedures: Contain run-off to prevent environmental contamination, cool containers exposed to heat with water spray, avoid inhaling combustion products

6. Accidental Release Measures

Personal Precautions: Wear protective gloves, goggles, and chemical-resistant clothing
Environmental Precautions: Prevent entry into soil, sewers, waterways, inform authorities in case of large spills
Methods for Cleanup: Absorb with inert material (sand, earth, vermiculite), collect waste in suitable containers, ventilate area, decontaminate spill surface with detergent and water
Disposal of Collected Material: Dispose of according to local, regional, national, and international regulations

7. Handling and Storage

Safe Handling: Use proper ventilation, avoid inhaling fumes or vapors, avoid direct contact with skin and eyes, handle in closed systems where possible
Storage Conditions: Keep container tightly closed in a cool, dry, well-ventilated place, store away from incompatible substances like oxidizers or strong acids
Incompatible Materials: Strong oxidizing agents, acids and bases, moisture
Special Precautions: Store chemical in original packaging, keep separate from foodstuffs and animal feeds, maintain appropriate labeling

8. Exposure Controls and Personal Protection

Occupational Exposure Limits: No established OSHA or ACGIH limits; use strict workplace control measures
Engineering Controls: Fume hoods, local exhaust, system enclosures
Personal Protection: Chemical-resistant gloves (nitrile, neoprene), safety goggles, lab coat or coveralls, chemical-resistant footwear
Respiratory Protection: Use NIOSH-approved respirator if ventilation inadequate, filter mask for nuisance levels
Hygiene Measures: Wash hands after handling, do not eat or drink during use, remove contaminated clothing before entering eating areas

9. Physical and Chemical Properties

Appearance: Colorless to pale yellow, viscous liquid
Odor: Mild, faint sulfuric or slightly amine-like
Odor Threshold: Not determined
pH: Acidic (pH 1–2 in solution)
Melting Point/Freezing Point: Below 0°C
Initial Boiling Point/Range: Decomposes before boiling
Flash Point: >150°C (closed cup, slow evaporation)
Evaporation Rate: Very slow
Flammability: Non-flammable under normal use
Vapor Pressure: Extremely low at 20°C
Density: 1.19–1.22 g/cm3 at 25°C
Solubility: Miscible with water, soluble in polar organic solvents
Partition Coefficient (log Kow): Not available
Autoignition Temperature: Not self-igniting
Decomposition Temperature: Decomposes at above 200°C
Viscosity: Moderate to high at 20°C

10. Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Reactivity: Does not polymerize, avoids strong oxidizers and acids
Hazardous Reactions: Reacts with highly reactive substances, can produce toxic or corrosive gases upon degradation
Decomposition Products: Sulfur oxides, nitrogen oxides, hydrogen sulfide, carbon oxides
Conditions to Avoid: High temperature, direct sunlight, moisture, sources of ignition

11. Toxicological Information

Acute Toxicity: May irritate eyes, skin, mucous membranes; estimated oral LD50 (rat) >2000 mg/kg
Skin Corrosion/Irritation: Causes mild to moderate skin irritation, possible burns upon extended contact
Serious Eye Damage/Irritation: Causes eye irritation, risk of corneal injury if splashed
Respiratory Sensitization: May cause mild irritation to respiratory tract
Skin Sensitization: Not a skin sensitizer based on available data
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity: No mutagenic effects reported in available literature
Reproductive Toxicity: No evidence of reproductive harm from similar compounds
Potential Health Effects: Local irritation, gastrointestinal upset with ingestion, headache or dizziness from inhalation, dermal redness and discomfort

12. Ecological Information

Toxicity to Aquatic Life: Harmful to aquatic organisms at low concentrations, long-term exposure can damage aquatic environments
Persistence and Degradability: Low biodegradability, ionic liquids often persist in the environment
Bioaccumulation: Limited evidence for bioaccumulation due to high water solubility and low volatility
Mobility in Soil: Expected to be mobile in aquatic and terrestrial environments, can leach through soil
Other Adverse Effects: Product residues can alter pH of water bodies, impacts water quality and aquatic life

13. Disposal Considerations

Disposal Methods: Collect and dispose of contents/container at licensed hazardous waste facility, do not pour down drain
Waste Codes: As per local hazardous waste classification
Contaminated Packaging: Rinse thoroughly, dispose with chemical waste
Precautions: Handle clean-up residues as hazardous waste, minimize environmental release, follow all regional rules

14. Transport Information

UN Number: No UN shipping classification assigned
Proper Shipping Name: Not regulated under ADR/RID/IMDG/IATA for transport
Packing Group: None specified
Transport Hazard Class: Not classified as hazardous for transport
Special Precautions: Keep container tightly closed and upright during transport, avoid product leaks, secondary containment recommended
Environmental Hazard Mark: Not required unless transported in very large quantities

15. Regulatory Information

International Inventories: May not appear on TSCA, EINECS, DSL, AICS, KECL, PICCS
OSHA Status: Hazardous by definition under Hazard Communication Standard (29 CFR 1910.1200) due to irritation potential
SARA Title III Sections 302/304/311/312: Not listed
SARA Title III Section 313: Not reportable
State Regulations: Check state-specific chemical listings and labor departments
Other Regulations: Handle according to safety standards for laboratory chemicals, ensure SDS is available for all users, meet training requirements as per local rules