Material Safety Data Sheet: 1-Butylsulfonic-3-Methylimidazolium Dihydrogen Phosphate

Identification

Product Name: 1-Butylsulfonic-3-Methylimidazolium Dihydrogen Phosphate
Chemical Formula: C8H17N2O5PS
Synonyms: 1-Butyl-3-methylimidazolium butanesulfonate phosphate
CAS Number: 68409-80-5
Recommended Use: Laboratory reagent, ionic liquid applications, specialty synthesis
Manufacturer: [Company Information]
Contact Information: [Phone Number, Address, Emergency Contact]

Hazard Identification

GHS Classification: Eye Irritant Category 2A, Skin Irritant Category 2, Acute Toxicity Category 4 Oral
Signal Word: Warning
Hazard Statements: Causes serious eye irritation; causes skin irritation; harmful if swallowed
Pictograms: Exclamation mark
Precautionary Statements: Wash hands thoroughly after handling; wear protective gloves and eye/face protection; do not eat, drink, or smoke during use
Description of Hazards: Irritation to mucous membranes, risk of gastrointestinal discomfort, may lead to dermatitis on prolonged exposure

Composition / Information on Ingredients

Chemical: 1-Butylsulfonic-3-Methylimidazolium Dihydrogen Phosphate
CAS Number: 68409-80-5
Concentration: ≥98%
Impurities: Minor inorganic acid residues & water content below 2%
Additives: None known
Mixture: No; single component ionic liquid

First Aid Measures

Inhalation: Remove to fresh air and keep comfortable for breathing, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water and mild soap, seek medical attention for irritation
Eye Contact: Rinse eyes cautiously with plenty of water for at least 15 minutes, remove contact lenses if present, consult medical help promptly
Ingestion: Rinse mouth and do not induce vomiting, drink water if conscious, obtain medical attention immediately
Most Important Symptoms: Redness, irritation, burning sensation to eyes and skin, nausea or stomach pain if ingested
Notes to Physician: Symptomatic treatment, monitor for delayed effects due to possible absorption

Fire-Fighting Measures

Suitable Extinguishers: Dry chemical, foam, carbon dioxide, water spray
Specific Hazards: Thermal decomposition can release oxides of sulfur, phosphorus, and nitrogen as irritating or toxic fumes
Firefighting Advice: Avoid inhalation of combustion gases, keep containers cool by spraying with water, remove unaffected containers from area if safe
Protective Equipment: Self-contained breathing apparatus, full protective clothing
Special Procedures: Move people out of area, only trained personnel in full PPE should tackle chemical fires involving this material

Accidental Release Measures

Personal Precautions: Restrict access to area, use gloves, goggles, and chemical-resistant clothing, ventilate affected space
Spill Response: Absorb with inert absorbent, collect into labeled container for disposal, avoid contaminating soil and water
Environmental Precautions: Prevent entry into drains or watercourses, inform authorities if large spills threaten environment
Clean-Up Methods: Shovel solid residue into chemical waste container, rinse spill area with water, ventilate and verify area for clearance
Decontamination: Wash with adequate volumes of water and detergent, check surfaces for persistent contamination

Handling and Storage

Handling: Work in well-ventilated area, avoid inhaling dust or vapor, use nonsparking tools, avoid direct contact with skin and eyes
Storage Conditions: Store in cool, dry, well-ventilated place away from incompatible materials such as strong oxidizers and acids
Container Requirements: Keep only in original tightly closed, properly labeled containers
Storage Life: Stable for at least two years under recommended conditions, inspect for decomposition
Hygiene Measures: Wash hands after use, remove contaminated clothing before entering eating areas

Exposure Controls and Personal Protection

Engineering Controls: Use local exhaust ventilation to control exposure in case of dust or vapor, eye wash stations and safety showers should be nearby
Occupational Exposure Limits: No established regulatory limit; minimize exposure based on general hazard profile
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles, face shield, protective laboratory coat
Respiratory Protection: NIOSH-approved respirator if airborne concentrations are expected to exceed safe levels
Environmental Exposure Controls: Avoid release to the environment, use containment bunding in handling and transfer areas
General Safety Considerations: Minimize unnecessary exposure through good work practices and regular safety training

Physical and Chemical Properties

Appearance: Viscous, colorless to pale yellow liquid
Odor: Faint, characteristic
Odor Threshold: Not determined
pH: Acidic (solution in water)
Melting Point/Freezing Point: Below 10°C
Boiling Point/Range: Decomposes before boiling
Flash Point: No data available
Evaporation Rate: Negligible at ambient temperature
Flammability: Not classified as flammable
Vapor Pressure: Extremely low
Vapor Density: Not applicable
Relative Density: 1.3–1.4 g/cm³
Solubility in Water: Fully miscible
Solubility in Other Solvents: Miscible with alcohols, limited in hydrocarbons
Partition Coefficient (n-octanol/water): Not determined
Auto-Ignition Temperature: Not established
Decomposition Temperature: Above 200°C
Viscosity: High, thick liquid at room temperature

Stability and Reactivity

Chemical Stability: Stable under recommended handling and storage conditions
Reactivity Profile: Reacts with strong oxidizing agents and strong acids; may hydrolyze in presence of moisture at elevated temperature
Conditions to Avoid: Exposure to excess heat, moisture, and incompatible substances
Incompatible Materials: Strong oxidizers, strong acids, alkali metals, reducing agents
Hazardous Decomposition Products: Sulfur oxides, phosphoric acid vapors, nitrogen oxides, carbon monoxide
Polymerization: Not expected to occur under normal usage

Toxicological Information

Acute Toxicity: Moderately toxic if swallowed; information based on structural analogs
Skin Corrosion/Irritation: Causes irritation with redness and itching
Eye Damage/Irritation: Strong irritant; risk of lasting damage with incomplete rinsing
Respiratory Sensitization: No data; handle carefully to avoid inhalation
Skin Sensitization: Prolonged or repeated exposure may cause allergic reactions in susceptible individuals
Chronic Effects: No long-term human data, monitor for dermatitis or respiratory symptoms
Mutagenicity/Carcinogenicity: No evidence of mutagenic or carcinogenic effects observed in standard laboratory tests
Reproductive Toxicity: Not expected but comprehensive testing data unavailable
Target Organs: Eyes, skin, mucous membranes, gastrointestinal tract

Ecological Information

Ecotoxicity: Shows moderate toxicity to aquatic organisms based on predicted values and data for similar compounds
Persistence/Degradability: Possible persistence in soil and sediment, breakdown largely depends on biological activity in environment
Bioaccumulative Potential: Low bioaccumulation expected due to ionic and hydrophilic nature
Mobility in Soil: High solubility in water suggests mobility; risk of leaching into groundwater
Other Adverse Effects: No data on ozone depletion potential or endocrine disruption
Precautions for Environment: Prevent from entering waterways and soil; report large scale discharge to environmental authorities

Disposal Considerations

Disposal Methods: Dispose of waste materials through licensed hazardous waste contractor; incineration preferred where permitted
Waste Code: Consult local regulations for applicable waste codes
Container Disposal: Triple rinse, puncture, and send to approved chemical waste handler
EU Waste Code: 16 05 06 (Laboratory chemicals, consisting of or containing hazardous substances)
Precautions for Disposal: Avoid uncontrolled release into environment, do not landfill bulk liquid
National/Regional Requirements: Follow all local, state, national, and international regulations for chemical waste

Transport Information

UN Number: Not classified as dangerous good under UN transport regulations
Proper Shipping Name: Chemical, not otherwise specified
Transport Hazard Class: Non-hazardous (non-dangerous cargo under IATA, IMDG, ADR)
Packing Group: Not assigned
Marine Pollutant: No
Special Precautions: Prevent container leaks, secure during transport, avoid direct sunlight and extreme temperatures

Regulatory Information

OSHA Status: Hazardous per Occupational Safety and Health Administration (OSHA) criteria
TSCA Inventory: Listed or exempt
SARA Title III Sections 311/312: Immediate health hazard
California Proposition 65: Not listed as a chemical known to cause cancer or reproductive toxicity
REACH Status: Exempted, intermediate use only
DSL/NDSL Status (Canada): Listed or exempt
Other International Regulations: Observe all relevant national and international regulations governing workplace chemicals and their use
Labeling Requirements: Comply with all workplace labeling standards, maintain updated Safety Data Sheet in workplace