Product Name: 1-Ethyl-3-Methylimidazolium Dihydrogen Phosphate
Chemical Formula: C6H13N2O4P
CAS Number: 616-29-5
Synonyms: EMIM DHP, 1-Ethyl-3-Methylimidazolium dihydrogen phosphate
Recommended Use: Laboratory research, ionic liquid applications, solvent in synthesis, electrochemistry
Supplier: Laboratory chemical provider details should match purchase documentation
Emergency Contact: Refer to institutional or supplier emergency procedures and numbers
Classification: Causes serious eye irritation. May cause skin irritation. Not considered highly flammable but decomposes to irritating fumes.
Label Elements: GHS07 (exclamation mark). Signal word: Warning.
Hazard Statements: Causes eye irritation, may result in skin irritation, respiratory discomfort possible with significant vapor exposure.
Precautionary Statements: Wear protective gloves, eye protection, and face protection. Avoid breathing vapors or mist. Wash exposed skin thoroughly after handling. Remove contaminated clothing and launder before reuse.
Potential Health Effects: Eye contact may cause pain, redness and watering. Prolonged contact may result in skin dryness or cracking. Inhalation may cause mild respiratory discomfort especially in poorly ventilated spaces. Not likely to be ingested but ingestion may cause discomfort and gastrointestinal symptoms.
Environmental Hazards: Avoid uncontrolled release into watercourses as some ionic liquids persist and disrupt aquatic life.
Chemical Identity: 1-Ethyl-3-Methylimidazolium Dihydrogen Phosphate
Concentration: 98-100%
Impurities: Traces of starting materials from synthesis (usually less than 0.5%)
Molecular Weight: 208.15 g/mol
Constituents: No known stabilizing agents, colorants, or preservatives
Eye Contact: Rinse with clean running water for at least 15 minutes, lifting upper and lower eyelids occasionally. Seek medical attention immediately if irritation persists.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of water and mild soap. Seek medical attention if irritation develops or persists.
Inhalation: Move to fresh air. Keep person calm and warm. Seek medical attention if breathing becomes difficult or symptoms persist.
Ingestion: Rinse mouth thoroughly with water. Do not induce vomiting unless advised by medical personnel. Seek immediate medical advice if large quantities have been ingested or symptoms occur.
Symptoms and Effects: May cause eye pain, skin redness, mild respiratory effects or stomach upset in cases of accidental ingestion.
Suitable Extinguishing Media: Use CO₂, dry chemical, foam or water spray as appropriate for surrounding fire.
Unsuitable Extinguishing Media: Strong water jets may spread chemical.
Special Hazards: Decomposition releases phosphorus oxides, nitrogen oxides, carbon oxides and possibly other toxic vapors.
Protective Equipment: Firefighters must wear self-contained breathing apparatus and fully protective gear.
Firefighting Procedures: Remove containers from area if possible. Prevent runoff from entering drains or waterways. Contain water used for firefighting for subsequent disposal.
Explosion Data: Does not present significant explosion hazard under normal use and storage.
Personal Precautions: Wear suitable protective clothing, gloves, and safety glasses. Ventilate spill area. Avoid breathing vapors.
Environmental Precautions: Prevent release to soil, drains, sewers or waterways. Contain spill using appropriate diking materials.
Cleaning Procedures: Absorb with inert material such as dry sand, vermiculite, or earth. Shovel collected material into suitable waste containers. Rinse area with water only after all traces of chemical have been removed and collected. Dispose of residues according to local regulations.
Decontamination: Thoroughly clean contaminated surfaces and ventilate the area. Use proper equipment to collect any cleaning residue.
Safe Handling: Avoid contact with skin, eyes, and clothing. Use only in well-ventilated areas. Do not handle until all safety precautions have been read and understood. Wash hands after handling. Do not eat, drink, or smoke while using this chemical.
Storage Requirements: Store in tightly closed containers in cool, dry, well-ventilated places. Keep away from strong acids, bases, oxidizers, and sources of ignition. Protect from moisture and direct sunlight. Store at room temperature away from incompatible chemicals.
Packaging: Use chemical-resistant containers such as glass or compatible plastic. Keep containers tightly sealed.
Storage Life: Stable for extended periods if stored in suitable containers away from moisture and light.
Engineering Controls: Use fume hoods or local exhaust to minimize vapor build-up. Provide eyewash stations and safety showers nearby in working areas.
Personal Protection: Wear chemical-resistant gloves (nitrile suggested), safety goggles or face shield for eye protection, and lab coat or apron to cover exposed skin. In case of inadequate ventilation, wear an approved respirator.
Hygiene Measures: Remove contaminated clothing immediately; launder before reuse. Wash hands and face thoroughly after handling and before breaks or eating.
Occupational Exposure Limits: No specific established limits for this compound. General good laboratory hygiene and exposure minimization practices advised.
Physical State: Liquid at room temperature
Color: Clear to pale yellow
Odor: Faint, slightly amine-like or phosphate smell
pH: 3.0 - 4.0 (aqueous solution, typical)
Melting Point: Typically below room temperature, 12–17°C
Boiling Point: Decomposes before boiling
Flash Point: Not highly flammable; above 180°C (closed cup, reference)
Solubility: readily soluble in water and polar organic solvents
Density: 1.20–1.25 g/cm³ (20°C)
Vapor Pressure: Low at room temperature
Viscosity: Moderate; 50–200 cP at 25°C
Chemical Stability: Stable under general storage and use conditions, away from moisture and heat.
Incompatible Materials: Strong oxidizing agents, strong acids, strong bases, reactive metals.
Conditions to Avoid: Avoid excessive heat, open flames, contact with incompatible chemicals, moisture, and direct sunlight.
Hazardous Decomposition Products: Emits nitrogen oxides, carbon oxides, phosphorus oxides, under thermal decomposition.
Polymerization: No known hazardous polymerization
Routes of Exposure: Eye contact, skin absorption, inhalation, ingestion (accidental).
Acute Toxicity: Data suggests low acute toxicity; LD₅₀ for rats (oral) estimated above 2000 mg/kg for related imidazolium salts.
Skin Corrosion/Irritation: May cause mild skin irritation after prolonged or repeated contact.
Serious Eye Damage/Irritation: Causes eye irritation immediately after exposure.
Respiratory Effects: Vapor/mist may cause transient respiratory irritation.
Chronic Effects: No clear evidence of mutagenicity, carcinogenicity, or reproductive toxicity for this compound, though related ionic liquids under study for long-term effects.
Sensitization: Not classified as a sensitizer based on available data.
Other Health Effects: Long safety record in laboratory settings with proper handling.
Ecotoxicity: May prove toxic to aquatic organisms if released in significant amounts. Ionic liquids often display low to moderate biodegradability.
Persistence and Degradability: Somewhat persistent; breakdown depends on environmental conditions.
Bioaccumulation Potential: Low predicted bioaccumulation based on structure, but limited data.
Mobility in Soil: High solubility in water increases mobility.
Other Adverse Effects: No known ozone depletion or significant air hazard. Avoid release to natural environment, especially streams and wastewater.
Waste Treatment Methods: Dispose of unused product, spilled materials, and contaminated items as hazardous chemical waste according to local, regional, and national regulations.
Container Disposal: Rinse empty containers well, then manage as hazardous waste. Do not reuse packaging for food or drink.
Methods of Disposal: Incineration in appropriate facility preferred, as per chemical waste incineration guidelines.
Prevent Environmental Contamination: Never pour large volumes down drains or sewers. Collect residues for chemical waste programs.
UN Number: Not assigned for this compound specifically under UN model regulations.
Transport Hazard Class: Not classified as dangerous goods for transport by air (IATA), sea (IMDG), or road (ADR/RID) at common laboratory and research shipment volumes.
Packing Group: Not applicable under standard shipping regulations.
Special Precautions: Use secure, leak-proof packaging and proper labeling. Prevent breakage of containers. Consider local transport regulations for chemical substances.
TSCA: Not listed directly under Toxic Substances Control Act (check supplier information for updates).
EINECS/ELINCS: Not explicitly listed in European inventories; may be covered under REACH provisions for research use.
WHMIS: Subject to controls on hazardous workplace chemicals in Canada.
Hazard Symbols: Eye Irritant, general caution
International Inventories: Item not specifically listed but falls under chemical safety legislation for laboratory agents.
Other Regulations: Users should consult current national, state, and local regulations regarding safe use, storage, transportation, and disposal. Documentation of training on safe handling and emergency procedures advised for workers coming in contact with the substance.
