Product Name: N-Butylimidazolium Hydrogen Sulfate
Chemical Formula: C7H14N2HSO4
Synonyms: 1-Butyl-3-methylimidazolium hydrogen sulfate
CAS Number: 262297-13-2
Manufacturer Details: Refer to supplier documentation
Recommended Use: Laboratory chemicals, process industry chemicals
Contact for Emergency: Local emergency number, poison control center
Restrictions on Use: Industrial and research applications only
Classification: Corrosive to skin, strongly irritant to eyes and mucous membranes
Hazard Statements: Causes severe skin burns and eye damage, may cause respiratory irritation
Pictograms: Corrosive GHS05
Signal Word: Danger
Precautionary Statements: Avoid breathing mists or vapors, wear protective gloves and eye protection, wash hands thoroughly after handling
Other Hazards: Prolonged exposure damages tissues, reacts with water slowly to liberate heat
Component: N-Butylimidazolium Hydrogen Sulfate
Chemical Formula: C7H14N2HSO4
Concentration: ≥98% by weight
Impurities and Stabilizing Additives: Trace impurities from synthesis, water content below 1%
Inhalation: Move affected individual to fresh air, seek medical attention for symptoms like coughing, difficulty breathing
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for several minutes, do not use neutralizers directly, seek immediate medical care for burns
Eye Contact: Rinse gently with water for at least 15 minutes lifting eyelids, consult ophthalmologist as soon as possible
Ingestion: Do not induce vomiting, rinse mouth with water, drink small amounts of water if conscious, seek urgent medical help
Most Important Symptoms: Pain, redness, burns, blistering, airway constriction on exposure to high vapor concentrations
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam
Unsuitable Media: Direct water jet
Specific Hazards: Releases hazardous gases like nitrogen oxides, sulfur oxides upon combustion
Protective Equipment: Full self-contained breathing apparatus, protective suit
Special Procedures: Cool undamaged containers with water spray, collect contaminated firefighting water separately
Personal Precautions: Ventilate area, use chemical splash goggles, nitrile gloves, avoid breathing vapors
Environmental Precautions: Prevent entry to sewers or surface water, contain spill with sand or inert absorbent
Cleanup Methods: Soak up with non-combustible absorbent material like vermiculite, transfer to labelled acid-resistant containers, dispose according to local regulations
Decontamination: Rinse small residues with water, collect washings for disposal, wash surfaces with mild alkali after initial cleaning
Handling: Use in well-ventilated area, keep away from incompatible materials like strong bases and chlorinating agents, avoid skin and eye contact, do not inhale vapor
Storage Conditions: Store tightly closed in original container, keep cool and dry, keep away from direct sunlight and heat sources
Incompatible Materials: Strong oxidizers, alkalis, water-reactive compounds
Other Precautions: Label storage area, restrict access to trained personnel
Control Parameters: No specific occupational exposure limits established for this compound, monitor atmosphere for acid vapors
Engineering Controls: Chemical fume hood, exhaust ventilation
Personal Protective Equipment: Nitrile or butyl rubber gloves, chemical-resistant lab coat, face shield or certified goggles, adequate respiratory protection in case of aerosol or vapor formation
Hygiene Measures: Wash hands and face after handling, do not eat or drink in work area, launder contaminated clothing before reuse
Appearance: Colorless to pale yellow liquid
Odor: Slight sulfurous smell
pH: Strongly acidic (0.5–1.5 at 100 g/L H2O)
Melting Point: Typically below room temperature
Boiling Point: Decomposes before boiling
Flash Point: Not readily flammable under normal conditions
Vapor Pressure: Very low at ambient temperature
Solubility: Fully miscible with water, hygroscopic
Viscosity: High compared to water at room temperature
Density: 1.15–1.20 g/cm³
Explosive Properties: Not explosive
Oxidizing Properties: Not oxidizing
Chemical Stability: Stable under normal storage and handling conditions, hygroscopic
Reactivity: Reacts exothermically with water, bases
Hazardous Reactions: Contact with strong alkalis, oxidizers may cause violent reaction
Conditions to Avoid: Prolonged exposure to air, elevated temperature, moisture ingress
Decomposition Products: Nitrogen oxides, sulfur oxides, carbon-containing gases on combustion or decomposition
Acute Toxicity: Based on structure, expected to be harmful if swallowed, inhaled, or in contact with skin; no detailed LD50 data available
Corrosivity: Strong skin and eye corrosive based on acidic nature
Sensitization: Not likely to cause allergic skin reaction
Chronic Effects: Persistent contact damages tissues, may aggravate pre-existing skin and respiratory conditions
Carcinogenicity, Mutagenicity: No data available indicating carcinogenic or mutagenic effects
Other Information: Experience shows accidental contact causes significant discomfort, prompt decontamination is critical
Ecotoxicity: Harmful to aquatic organisms at high concentrations, acidic discharge threatens aquatic habitats
Persistence and Degradability: Compound is expected to hydrolyze and slowly biodegrade over time
Bioaccumulative Potential: Low, does not tend to accumulate in aquatic life
Mobility in Soil: Highly mobile in water, solubilizes rapidly
Other Adverse Effects: Large spills acidify soil and water, disrupt biological cycles
Waste Treatment Methods: Treat as hazardous chemical waste, neutralize with dilute alkali under controlled conditions, ensure effluent pH is neutral before final disposal
Contaminated Packaging: Clean with water if recyclable under regulated protocols, otherwise dispose as hazardous waste
Special Precautions for Disposal: Avoid disposal to sewer or natural water bodies, consult regional hazardous waste guidelines for approved incineration or chemical treatment facilities
UN Number: 3265
Proper Shipping Name: Corrosive liquid, acidic, organic, n.o.s. (N-Butylimidazolium Hydrogen Sulfate)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III
Special Precautions: Arrange for transport by approved carriers, ensure containers remain upright and tightly closed, emergency contact accessible during transit, avoid mechanical impact
Environmental Hazards: Not designated as marine pollutant, prevent leaks to surface water
Safety, Health and Environmental Regulations: Subject to control under local chemical safety and environmental regulations
Label Elements: Corrosive pictogram, standardized hazard and precautionary phrases
Chemical Inventory Listings: Inventory registration may be required under REACH (Europe), TSCA (USA), DSL/NDSL (Canada)
Other Standards: Refer to applicable workplace exposure standards, hazardous material storage and transport legislation
User Responsibility: Keep informed on legal obligations and safety practices through regular review of updates in regulatory requirements
