Material Safety Data Sheet: Ethylmorpholine

Identification

Chemical Name: N-Ethylmorpholine
Synonyms: Ethylmorpholine, 4-Ethylmorpholine
CAS Number: 100-74-3
Recommended Use: Intermediate in organic synthesis, catalyst in chemical processes
Supplier: [Supplier details as per actual source]
Emergency Contact: [Insert emergency contact number here]

Hazard Identification

Classification: Flammable liquid and vapor; Harmful if inhaled or swallowed; Causes severe skin burns and eye damage
GHS Label Elements: Danger – Flammable, Corrosive, Toxic
Hazard Statements: H225: Highly flammable liquid and vapor; H302: Harmful if swallowed; H314: Causes severe skin burns and eye damage
Precautionary Statements: Wear protective gloves, eye protection, face protection; Avoid breathing vapors or mist; Keep away from ignition sources
Routes of Exposure: Inhalation, ingestion, skin and eye contact

Composition / Information on Ingredients

Chemical Formula: C6H13NO
Main Ingredient: N-Ethylmorpholine – concentration 99%
Impurities: Water <0.5%, byproducts <0.5%
Additives: None typically present

First Aid Measures

Inhalation: Move person to fresh air, keep at rest, provide oxygen if breathing is difficult, seek medical attention
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, seek medical help
Eye Contact: Immediately flush eyes with water for at least 15 minutes, keep eyelids open, obtain prompt medical attention
Ingestion: Rinse mouth thoroughly, do not induce vomiting, give water to drink only if person is alert, get emergency medical care
Other: Take contaminated clothing off and wash before reuse, show safety data sheet to attending doctor

Fire-Fighting Measures

Suitable Extinguishers: Foam, dry chemical, carbon dioxide (CO2), water mist (avoid direct streams)
Special Hazards: Vapor forms explosive mixtures with air, combustion may form nitrogen oxides and carbon monoxide
Protective Gear: Wear self-contained breathing apparatus, chemical protective suit
Advice for Firefighters: Prevent runoff into drains, cool containers with water spray, evacuate area if necessary

Accidental Release Measures

Personal Precautions: Evacuate area, ventilate, remove ignition sources, use personal protective equipment
Environmental Precautions: Prevent entry into sewers, soil or waterways, notify authorities if large spill occurs
Cleanup Methods: Absorb liquid with inert material (sand, earth), collect in suitable container for disposal, clean area with water and detergent

Handling and Storage

Handling: Avoid contact with skin, eyes, clothing; use only in well-ventilated areas; keep away from hot surfaces and open flames; ground and bond containers during transfer
Storage: Store in tightly closed original container, dry, cool, and well-ventilated place; keep away from incompatible materials like acids, oxidizers
Special Advice: Use spark-proof tools, no smoking near storage or use, keep clear labeling on containers

Exposure Controls and Personal Protection

Engineering Controls: Use proper exhaust ventilation, keep air concentrations below exposure limits
Personal Protection: Chemical resistant gloves (nitrile or neoprene), splash-proof goggles, long-sleeve protective clothing, approved respirator for vapors
Hygiene Practices: Wash hands thoroughly after handling, do not eat or drink during work, remove contaminated apparel and wash before reuse
Workplace Exposure Limit: No established OSHA PEL or ACGIH TLV; observe good industrial hygiene

Physical and Chemical Properties

Appearance: Colorless to pale yellow liquid
Odor: Amine-like, fishy
Odor Threshold: Not determined (amine odor detectable at low concentration)
pH: Alkaline
Melting Point: -59°C
Boiling Point: 138°C
Flash Point: 32°C (closed cup)
Evaporation Rate: Not measured
Flammability: Flammable liquid
Vapor Pressure: 13 mmHg at 20°C
Vapor Density: 3.2 (air = 1)
Relative Density: 0.89 g/cm3 (20°C)
Solubility: Miscible with water
Partition Coefficient: log Kow estimated ~0.2
Auto-Ignition Temp: 225°C
Decomposition Temp: Not available
Viscosity: Low, like other small amines

Stability and Reactivity

Chemical Stability: Stable at room temperature, away from light and moisture
Reactivity: Forms flammable mixtures with air, reacts with strong acids producing heat and possible violent reaction
Incompatible Materials: Strong oxidizers, acids, acid chlorides, isocyanates
Hazardous Decomposition: Carbon monoxide, carbon dioxide, nitrogen oxides, possible toxic vapors
Polymerization: Not known to occur

Toxicological Information

Acute Toxicity: May cause nausea, vomiting, headache, dizziness if inhaled or ingested
Skin Contact: Severe irritation, burns, possible absorption through skin
Eye Contact: Permanent damage possible without prompt rinsing
Chronic Effects: Repeated exposure causes dermatitis, respiratory tract irritation
LD50 (oral, rat): ~1600 mg/kg
LD50 (dermal, rabbit): >2000 mg/kg
Carcinogenicity: Not listed by IARC, NTP, OSHA as carcinogenic
Sensitization: No reliable evidence for sensitizing effects

Ecological Information

Ecotoxicity: Harmful to aquatic organisms, may cause long-term effects in the environment
Persistence: Degrades slowly in water and soil, volatile
Bioaccumulation Potential: Low (log Kow ~0.2)
Mobility in Soil: High mobility due to water solubility
Aquatic Toxicity (Estimated): LC50 (fish, 96h): ~90 mg/L
Degradability: Biodegradable over weeks under aerobic conditions

Disposal Considerations

Waste Disposal: Incinerate under controlled conditions in accordance with local regulations, handle as hazardous waste
Container Disposal: Rinse containers thoroughly before recycling or disposal, do not reuse containers
Special Precautions: Avoid discharge into drains, watercourses, land; consult EPA, state or local regulations

Transport Information

UN Number: UN2735
Shipping Name: Amines, liquid, corrosive, n.o.s. (contains N-Ethylmorpholine)
Transport Hazard Class: 8 (Corrosive), also classified as 3 (Flammable Liquid)
Packing Group: II
Hazard Label Required: Corrosive, Flammable Liquid
Special Precautions: Protect from physical damage, upright position only, keep away from incompatible loads
Marine Pollutant: Not classified as marine pollutant

Regulatory Information

OSHA: Hazardous Chemical under OSHA Hazard Communication Standard
TSCA: Listed on the TSCA Inventory
EPCRA Section 302/304: Not listed as extremely hazardous
SARA 311/312: Fire hazard, immediate health hazard
SARA 313: Not subject to reporting
REACH: Pre-registered in the EU
Other Regulations: Subject to local, state, and federal controls for storage and disposal