Product Name: 1-Hydroxyethyl-3-Methylimidazolium Dihydrophosphate
Chemical Family: Imidazolium ionic liquid
Synonyms: HEMIm-DHP
CAS Number: 1335200-13-5
Recommended Use: Laboratory reagent, solvent, chemical synthesis
Supplier Details: Manufacturer’s full address, Emergency telephone, Contact email
Emergency Number: Local poison control, company emergency response number
Product Use Restrictions: Professional use only, not for food, drug, or household use
GHS Classification: Eye Irritation Category 2A, Skin Irritation Category 3, Acute Toxicity - Oral Category 4, Aquatic Chronic Category 3
Pictograms: Exclamation mark (GHS07), Environment (GHS09)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, may cause respiratory irritation, harmful to aquatic life with long lasting effects
Precautionary Statements: Avoid release to the environment, wash skin thoroughly after handling, use only outdoors or in a well-ventilated area, wear protective equipment
Chemical Name: 1-Hydroxyethyl-3-Methylimidazolium Dihydrophosphate
Concentration: Greater than 98%
Impurities: Water (<1%), imidazolium byproducts (<0.5%)
Molecular Formula: C6H13N2O5P
Molecular Weight: 240.15 g/mol
Trade Secret Status: Not applicable; single component
Other Components: No intentionally added stabilizers or additives
Inhalation: Remove person to fresh air, monitor breathing, seek immediate medical attention for persistent symptoms
Skin Contact: Remove contaminated clothing, wash affected area with plenty of soap and water, seek medical advice for irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical attention if irritation persists
Ingestion: Rinse mouth with water, do not induce vomiting unless directed by medical personnel, call poison control or physician
Important Symptoms: Irritation to eyes, skin, respiratory tract, possible stomach upset, drowsiness or dizziness from fumes
Notes for Physician: Symptomatic treatment, oxygen or artificial respiration if required
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: Strong water jet, direct stream may spread material
Special Hazards: May release toxic fumes such as phosphorus oxides, nitrogen oxides, carbon oxides on combustion
Protective Equipment: Self-contained breathing apparatus, protective suit
Firefighting Procedures: Evacuate area, fight fire from safe distance, contain water runoff to prevent environmental contamination
Flammability: Not considered highly flammable, low vapor pressure at ambient temperatures
Thermal Decomposition: Risk of hazardous gases especially during incomplete combustion
Personal Precautions: Wear gloves, goggles, and suitable protective clothing, ventilate area, avoid breathing dust or vapor
Environmental Precautions: Prevent entry into drains, sewers, surface and groundwater, contain spill with inert absorbent
Spill Cleanup Methods: Scoop up liquid or absorb with vermiculite, sand, or earth, collect in suitable container for disposal, wash area with detergent and water
Disposal: Dispose in accordance with local, regional, or national regulations
Reporting: Notify local authorities if large quantities contaminate waterway or soil
Addition Notes: Prevent unnecessary personnel in the area
Handling Precautions: Use only with adequate ventilation, avoid contact with skin and eyes, do not ingest or inhale vapors, wash hands after handling
Technical Measures: Use explosion-proof electrical equipment, fume hoods or local exhaust
Storage Conditions: Keep container tightly closed in a dry, cool, well-ventilated place
Incompatible Materials: Strong oxidizers, strong bases, acetylating agents, materials sensitive to acid hydrolysis
Packaging Materials: Use original packaging, resistant plastic or glass preferred
Hygiene Measures: Prohibit eating, drinking, smoking, keep work area clean
Transfer Procedures: Use chemical resistant pumps or manual techniques to minimize splashing
Engineering Controls: Local exhaust ventilation, laboratory fume hood, eye wash stations, safety showers
Respiratory Protection: NIOSH-approved respirator if exposure limits are exceeded or ventilation inadequate
Hand Protection: Chemical-resistant gloves such as nitrile or neoprene
Eye Protection: Safety glasses with side shields, chemical splash goggles
Skin Protection: Lab coat, long sleeves, closed-toe shoes
Environmental Controls: Prevent release to the environment, handle liquid and waste thoughtfully
Exposure Limits: No established OSHA PEL or ACGIH TLV for this chemical, minimize exposure
Appearance: Colorless to pale yellow liquid
Odor: Mild, characteristic ionic liquid smell
Odor Threshold: Not established
pH: 2.5 – 4.0 (aqueous solution, 10%)
Melting Point: 35 – 40°C
Boiling Point: Decomposes before boiling
Flash Point: > 200°C (closed cup)
Evaporation Rate: Negligible
Flammability: Not readily flammable
Vapor Pressure: < 0.01 kPa at 20°C
Vapor Density: Not available
Relative Density: 1.25 – 1.32 g/cm³ at 20°C
Solubility: Miscible with water, soluble in polar organic solvents
Partition Coefficient: log Kow < 0
Auto-ignition Temperature: Not determined
Decomposition Temperature: 200 – 220°C
Viscosity: 80–110 mPa.s at 25°C
Molecular Properties: Stable as a liquid at room temperature, slight hygroscopic tendency
Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: Heat, exposure to strong oxidizing or reducing agents, excessive moisture
Incompatible Materials: Strong bases, oxidizers, halogens, acylating agents, substances sensitive to acid attack
Hazardous Decomposition Products: Phosphoric acid, nitrogen and carbon oxides, imidazole derivatives, potential for ammonia
Polymerization: Not known to polymerize
Reactivity: Moderate acid in water, avoid strong bases or concentrated oxidizer mix
Corrosivity: May corrode some metals on prolonged contact
Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Oral LD50 (rat) estimated 500–2000 mg/kg
Skin Corrosion/Irritation: Causes mild to moderate irritation, redness or dryness possible
Serious Eye Damage/Irritation: Causes eye irritation, redness, watering, pain on exposure
Respiratory or Skin Sensitization: Sensitization unlikely with normal handling, pre-existing conditions may worsen
Germ Cell Mutagenicity: No data available, not listed as mutagenic
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No specific data, treat as precautionary
Specific Target Organ Toxicity: May cause transient respiratory tract or mucous membrane irritation
Symptoms: Drowsiness, dizziness, stomach upset, skin or eye discomfort
Ecotoxicity: Harmful to aquatic life with possible long-term effects, LC50/EC50 for aquatic species in 1 – 10 mg/L range
Persistence and Degradability: Partially biodegradable in natural conditions, slow in low-nutrient environments
Bioaccumulation: Not expected to bioaccumulate, low log Kow
Mobility in Soil: Predicted to be mobile in water due to solubility, potentially leaches in wet soil
Other Adverse Effects: Avoid unmanaged release to streams, rivers, or public water systems
Test Data: No comprehensive aquatic toxicity data, base actions on structurally similar imidazolium salts
Disposal Methods: Dispose by incineration at licensed waste facility with proper environmental controls
Container Disposal: Rinse thoroughly, recycle or dispose of according to local regulations
Local Regulations: Consult hazardous waste authority for classification and disposal requirements
Precautions: Do not release to environment, do not pour into drains, minimize waste generation
Waste Code: Contact local authority, not specifically classified under US or EU waste directives
Special Considerations: Consult waste contractor with experience handling ionic liquids and phosphorus salts
UN Number: Not assigned
UN Proper Shipping Name: Not regulated as hazardous for ground, air or sea transport
Transport Hazard Class: Not applicable
Packing Group: Not assigned
Environmental Hazards: Marine pollutant in large quantities, avoid carrying with food products
Special Precautions for User: Avoid spillage, secure packaging, indicate chemical name on label, carry SDS during transport
Transport in Bulk (MARPOL/IBC): Not subject to bulk transport requirements
OSHA Status: Not specifically listed in 29 CFR 1910.1000
TSCA (USA): Check for inclusion on chemical inventory
DSL/NDSL (Canada): Consult regional listing
REACH (EU): Not registered, produced in low volumes for specialty applications
WHMIS (Canada): Not specifically classified
Right-to-Know (Prop 65): No known components listed
SARA Title III (Sections 302/304/313): Not applicable
Other National/Local Regulations: Subject to workplace safety and environmental protection rules per jurisdiction
Label Elements: GHS-compliant hazard pictogram, risk and safety phrases, name and phone of responsible party
SDS Revision Date: Indicate month/year of last review for regulatory compliance checks
