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Product Name: Ethylamine Aqueous Solution
Chemical Formula: C2H5NH2 in water
CAS Number: 75-04-7
Synonyms: Ethanamine, Aminoethane Solution
Recommended Use: Intermediate for pharmaceuticals, agricultural chemicals, rubber processing, textile chemicals
Manufacturer Contact: Emergency response number available on request; standard practice includes a 24-hour emergency phone line for chemical incidents
Emergency Overview: Strong, unpleasant odor; colorless to pale yellow liquid; irritates eyes, skin, respiratory system; flammable and corrosive.
GHS Classification: Flammable liquid (Category 2); Acute toxicity, oral and dermal (Category 3); Skin corrosion (Category 1B); Serious eye damage (Category 1); Specific target organ toxicity, single exposure (respiratory tract irritation) (Category 3)
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage; toxic if swallowed; toxic in contact with skin; causes serious eye damage; may cause respiratory irritation; highly flammable liquid and vapor
Pictograms: Flame, Corrosion, Exclamation mark, Skull and crossbones
Precautionary Statements: Keep away from heat, sparks, open flames; wear protective gloves, clothing, and face protection; avoid breathing vapor; wash exposed skin thoroughly after handling; use explosion-proof equipment; store in well-ventilated area.
Chemical Name: Ethylamine
Percentage: 50% to 70% by weight
Water: 30% to 50% by weight
Impurities: Trace amounts of related amines, not expected to affect classification
UN Number: 2270
EC Number: 200-834-7.
Inhalation: Move person to fresh air; keep airway clear; provide oxygen for difficult breathing; immediate hospital attention recommended for persistent symptoms such as coughing, throat irritation, difficulty breathing
Skin Contact: Remove contaminated clothing; wash thoroughly with soap and water; seek medical attention for burns, redness, blistering, or persistent pain
Eye Contact: Rinse eyes cautiously with water for at least 15 minutes; keep eyelids open; immediate medical attention required; do not allow patient to rub eyes
Ingestion: Rinse mouth; do not induce vomiting; drink plenty of water if conscious; immediate transport to medical facility essential due to high toxicity and risk of burns to gastrointestinal tract
Most Important Symptoms: Severe respiratory tract irritation, chemical burns, vision impairment, tissue damage, nausea.
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical, carbon dioxide, water spray (not direct stream)
Specific Hazards: Vapor forms explosive mixtures with air; fire produces toxic gases, including nitrogen oxides, ammonia, carbon monoxide, carbon dioxide; containers may rupture in heat
Protective Equipment: Wear full fire-fighting turnout gear and self-contained breathing apparatus (SCBA); approach fire from upwind; avoid inhalation of fumes
Special Procedures: Use water spray to cool containers; remove containers from fire area if safe; prevent runoff from entering waterways; do not use a solid stream of water.
Personal Precautions: Evacuate surrounding area; ventilate enclosed spaces; wear chemical-resistant gloves, goggles, face shield, impervious apron, and suitable respirator
Emergency Procedures: Approach spill from upwind; prevent entry into sewers or waterways; contain and absorb with non-combustible material like sand or earth
Cleanup Methods: Use inert absorbent material; transfer spilled material to suitable, labeled chemical waste containers; neutralize residue with dilute acid (as trained); decontaminate area
Environmental Precautions: Notify local environmental authorities for significant releases; avoid contamination of soil and water sources.
Handling: Handle in well-ventilated locations with access to safety showers and eyewash stations; avoid inhalation, ingestion, and contact with skin or eyes; ground and bond containers during material transfer; avoid sources of ignition; never use equipment made of copper, brass, or aluminum for handling
Storage: Store in tightly closed, corrosion-resistant containers, preferably stainless steel or polyethylene; keep in cool, dry, well-ventilated area away from heat sources, oxidizers, acids, and direct sunlight; segregate from incompatible substances (acids, halogens, oxidizing agents)
Storage Temperature: Recommended storage below 25°C (77°F).
Occupational Exposure Limits: ACGIH TLV: 5 ppm (8h TWA); OSHA PEL: 10 ppm
Engineering Controls: Use local exhaust ventilation; ensure eyewash and safety showers available; enclose sources of vapor and aerosol generation
Personal Protective Equipment: Chemical goggles or face shield, flame-retardant lab coat, chemical-resistant gloves (e.g., nitrile, neoprene), impervious apron, and boots; use approved respirator for concentrations above exposure limits or in case of insufficient ventilation
Hygiene Measures: Remove contaminated clothing immediately; wash hands and face after handling; no eating, drinking, or smoking in work areas.
Appearance: Colorless to pale yellow liquid
Odor: Strong ammonia-like, fishy odor
pH: Strongly alkaline (11.5–13 at 20°C)
Melting Point: Not applicable (aqueous solution)
Boiling Point: Range varies depending on concentration, typically 85–95°C
Flash Point: -2°C (measured for 70% solution)
Auto-ignition Temperature: 336°C
Explosion Limits: Lower: 2.7% — Upper: 14.0% (in air)
Vapor Pressure: Very high; approx. 250 mm Hg at 20°C
Density: ~0.84–0.90 g/cm³ at 20°C
Solubility: Completely miscible with water; high solubility in alcohols.
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: Vigorous reaction with acids, halogens, oxidizers, and hypochlorites; risk of toxic gas release and fire
Conditions to Avoid: Heat, sparks, open flames, incompatible chemicals, direct sunlight, poor ventilation
Incompatible Materials: Acids, oxidizing agents, halogens, copper alloys, zinc, aluminum
Hazardous Decomposition Products: Ammonia, nitrogen oxides, ethylene, carbon oxides.
Acute Toxicity: Toxic if swallowed, inhaled, or absorbed through skin; LD50 (oral, rat): ~560 mg/kg; LC50 (inhalation, rat): 8.9 mg/L/4h; LD50 (dermal, rabbit): ~1100 mg/kg
Skin Corrosion/Irritation: Causes severe burns, possible blisters, necrosis on prolonged or intensive exposure
Serious Eye Damage/Irritation: Risk of permanent corneal damage, possible blindness
Respiratory Effects: Severe irritation, coughing, shortness of breath, risk of pulmonary edema from high concentrations
Chronic Effects: Prolonged or repeated exposure may affect liver, kidneys, lung function; no evidence of carcinogenicity or reproductive toxicity found in current literature
Sensitization: Not classified as a skin or respiratory sensitizer based on available studies.
Ecotoxicity: Hazardous to aquatic life; LC50 (fish, 96h): 65 mg/L (Pimephales promelas); EC50 (daphnia, 48h): 95 mg/L; algae toxicity possible at low concentrations
Persistence and Degradability: Rapidly biodegradable in water and soil; high evaporation rate may limit persistence
Bioaccumulation: Not expected to bioaccumulate; low log Kow value underlines low bioaccumulation risk
Mobility in Soil: High water solubility means rapid movement through soil to groundwater
Other Hazards: Increases local pH, which can disrupt aquatic ecosystems; large spills can cause fish kills and ecosystem stress.
Disposal Methods: Must be handled as hazardous waste per local regulations; collect and neutralize with dilute acid before disposal; never dispose down drain or natural water bodies
Contaminated Packaging: Triple-rinse containers; puncture and send to licensed waste handler; must not be reused
Disposal Regulation: Comply with all local, regional, national, and international requirements; consider incineration at permitted facility
Precautions: Trained personnel and necessary PPE required during waste handling; keep incompatible waste separate; maintain waste management log for traceability.
UN Number: 2270
Proper Shipping Name: Ethylamine, aqueous solution
Transport Hazard Class: 3 (Flammable liquid), 8 (Corrosive)
Packing Group: I (High Danger)
Labels: Flammable liquid, Corrosive
Marine Pollutant: Not classified, but highly toxic to aquatic life
Transport Precautions: Keep away from heat, store upright, ensure container integrity, carry spill control equipment, staff trained in emergency response.
TSCA: Listed in US Toxic Substances Control Act inventory
REACH Status (EU): Registered; subject to restrictions for use and transport
OSHA Hazard Categories: Immediate (acute) health hazard, fire hazard, reactive hazard
WHMIS (Canada): Classified as Class B (flammable liquid), Class E (corrosive material), Class D-1A (very toxic material)
SARA Title III (Section 313): Not listed as a reportable toxic chemical, but ethylamine is regulated under CERCLA for release reporting
Labeling: GHS-compliant labeling with clear pictograms and signal words required; precautionary and response phrases must be present
Other Requirements: Workplace-specific training mandated; safety review procedures for new or modified uses; regular updates recommended for all safety documentation to reflect the latest hazard research and regulatory changes.
