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Product Name: Sodium Ethoxide in Ethanol Solution
Synonyms: Sodium ethylate, Ethanol sodium salt
Recommended Use: Laboratory reagent, organic synthesis
Manufacturer: Noted chemical suppliers, address and emergency phone included on label
CAS Number: Sodium Ethoxide: 141-52-6 | Ethanol: 64-17-5
EC Number: Sodium Ethoxide: 205-488-0 | Ethanol: 200-578-6
Classification: Flammable liquid (Category 2), Corrosive to metals (Category 1), Acute toxicity oral (Category 3), Eye damage/irritation (Category 1)
Label Elements: Danger Signal word, flame and corrosion pictograms, hazard phrases such as "Highly flammable liquid and vapor," "Causes severe skin burns and eye damage," "Toxic if swallowed"
Potential Effects: Contact with water generates heat and flammable gas, inhalation can irritate respiratory tract, direct skin contact produces burns, exposure to eyes may cause vision loss
Chemical Name: Sodium Ethoxide
Concentration: Ranges from 10% to 25% w/v
Chemical Name: Ethanol
Concentration: 75% to 90% w/v
Impurities: Trace water and sodium hydroxide sometimes present
Eye Contact: Immediate flushing with water, removing contact lenses, seeking medical attention quickly
Skin Contact: Removing contaminated clothes, rinsing area thoroughly, medical assistance for persistent burns or irritation
Inhalation: Moving to fresh air, providing oxygen or artificial respiration if breathing is labored, physician evaluation for symptoms
Ingestion: Rinsing mouth, absolutely no induced vomiting due to corrosive nature, urgent hospital attention
Additional Notes: Wash all contaminated skin and clothing before reuse, delayed symptoms are possible, always consult poison control or physicians
Suitable Extinguishing Media: Alcohol-resistant foam, dry powder, carbon dioxide.
Unsuitable Media: Water, due to vigorous reaction with sodium ethoxide
Special Hazards: Combustion emits toxic gases (sodium oxides, ethanol vapors), solution and vapors are highly flammable, containers exposed to fire can rupture violently
Protective Equipment: Full SCBA, chemical-resistant gloves, protective suit, avoiding inhalation of fire-generated fumes
Firefighting Instructions: Cool containers with fog spray, stay upwind, fight from protected location if possible
Personal Precautions: Evacuate area, eliminate ignition sources, ventilate
Protective Equipment: Gloves (nitrile or neoprene), chemical splash goggles, lab coat or apron, suitable respirator for dust/vapor
Containment Methods: Absorb with dry, inert material (sand, dry earth, vermiculite), do not use water
Cleanup Procedures: Shovel or sweep into labeled containers, secure for disposal, flush area with ethanol-resistant detergent
Environmental Precautions: Prevent run-off to waterways or sewers, notify environmental agencies after significant spill
Safe Handling: Ground and bond during liquid transfer, avoid open flames or sparks, never breathe vapors, keep container tightly closed
Storage Conditions: In dry, cool, well-ventilated space, away from heat sources and incompatible chemicals such as acids and oxidizers
Storage Containers: Store in materials resistant to caustic and flammable solvents, glass or specialized steel recommended, protect from moisture infiltration
Transfer Precautions: Use non-sparking tools, grounded containers, splash shields
General Hygiene: Always wash hands, avoid eating/drinking in chemical areas, keep eyewash and shower facilities nearby
Occupational Exposure Limits: Ethanol ACGIH TLV: 1000 ppm, OSHA PEL: 1000 ppm; no established limits for sodium ethoxide
Engineering Controls: Chemical fume hood, explosion-proof ventilation, spark-proof switches
Personal Protective Equipment: Gloves (butyl/nitrile/viton preferred), unvented goggles, face shield if splashing risk, flame-resistant laboratory coat, closed footwear
Respiratory Protection: Properly-fitted respirator or air purifying mask if vapor levels expected to exceed limits, especially for large-scale use
Environmental Controls: Do not allow solution or rinsates to escape into drains, use secondary containment in storage
Appearance: Clear, colorless to pale yellow liquid
Odor: Sharp, alcoholic
Odor Threshold: Detectable at very low ppm for ethanol
pH: Strongly basic (high alkalinity)
Melting Point (Sodium Ethoxide): 260°C (decomposes)
Boiling Point (Ethanol): 78°C
Flash Point: Below 20°C (highly flammable)
Evaporation Rate: Rapid, driven largely by ethanol
Solubility: Ethanol miscible with water, sodium ethoxide reacts violently with water; miscible in ethanol, not in non-polar solvents
Vapor Pressure: Heightened due to ethanol
Vapor Density: Greater than air
Relative Density: Approximates 0.85 - 0.89 (varies by mix), lighter than water
Viscosity: Low, flows easily
Decomposition Temperature: Readily decomposes to sodium hydroxide and ethane on contact with water or acid
Chemical Stability: Stable only in dry, sealed containers, rapidly degrades with moisture contact
Incompatible Materials: Acids, water, oxidizers (peroxides, nitrates), halogenated hydrocarbons, carbon dioxide
Hazardous Decomposition Products: Ethane, sodium oxide, sodium hydroxide, ethanol vapors
Hazardous Reactions: Contact with water produces heat, caustic soda, and flammable gases; exposure to acids liberates ethanol and heat
Polymerization: Not expected under normal conditions, may generate hazardous byproducts if overheated or contaminated by moisture
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Sodium ethoxide: oral LD50 (rat) ~700 mg/kg; Ethanol: oral LD50 (rat) 7060 mg/kg
Effects of Acute Exposure: Severe skin and mucous membrane burns, respiratory tract irritation, central nervous system depression from ethanol
Long-term Effects: Prolonged contact can lead to dermatitis, eye damage, repeated inhalation can harm liver and kidneys due to ethanol
Symptoms: Burning in throat and chest, coughing, vision loss if splashed in eyes, blisters on skin
Carcinogenicity: Ethanol classified as Group 1 IARC carcinogen via consumption routes, sodium ethoxide not classified
Additional Data: Chronic alcohol exposure increases risk of organ damage; no reproductive toxicity data specific to sodium ethoxide
Aquatic Toxicity: Highly toxic to fish and aquatic organisms due to high pH and ethanol content
Persistence and Degradability: Ethanol readily biodegradable, sodium ethoxide decomposes rapidly in water to sodium hydroxide, which can significantly alter aquatic pH
Bioaccumulation: Not expected in significant amounts due to breakdown in water
Mobility in Soil: Ethanol migrates easily, sodium hydroxide formed migrates with water and increases soil alkalinity
Other Adverse Effects: High local pH from spills can devastate invertebrates and fish, solution vapors also pose air quality hazard
Waste Disposal: Do not discharge to sewers, surface water, or soil; collect material using absorbent, neutralize cautiously in controlled environment
Disposal Methods: Consult licensed hazardous waste disposal contractor, follow all regulations
Contaminated Packaging: Rinse containers with ethanol or a compatible solvent before disposal, then treat as hazardous waste
Regulatory Controls: All disposal under local, regional, national laws, including special handling for sodium salts and flammable organics
UN Number: 1175
UN Proper Shipping Name: Ethanol solution (contains sodium ethoxide)
Transport Hazard Classes: Flammable liquid (Class 3), Corrosive (Class 8 for sodium ethoxide component in many jurisdictions)
Packing Group: II
Labels Required: Flammable liquid, corrosive
Special Transport Precautions: Secure containers upright, away from sources of ignition and incompatible materials, emergency leaks or spills must be reported and managed per regulations
Marine Pollutant: Not generally classified, but should not be released to water during transit
Regulatory Status: Subject to OSHA hazardous chemical standards, EPA hazardous waste criteria, DOT flammable and corrosive material transport regulations
SARA Title III Section 313: Not listed
TSCA Inventory: Both components listed
REACH Registrations: Components registered in Europe, safety phrases and risk phrases set per region
Other Regulations: Local workplace safety policies, PPE requirements, chemical hygiene plans, storage limitations for large volumes
Special Notes: Always keep readily available a copy of this sheet, updated to reflect regulatory changes or new data
