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Product Name: Diethanolamine
Chemical Formula: C4H11NO2
CAS Number: 111-42-2
Synonyms: 2,2'-Iminodiethanol, DEA, Bis(2-hydroxyethyl)amine
Recommended Use: Intermediate in manufacturing, surfactant, corrosion inhibitor, textile processing agent
Manufacturer Information: Refer to supplier’s official documentation for contact details. Never underestimate the importance of traceability and up-to-date contact info in an emergency.
GHS Classification: Acute Toxicity (Oral), Skin Irritation, Eye Damage, Carcinogenicity (possible human carcinogen IARC Group 2B), Specific Target Organ Toxicity (repeated exposure)
Pictograms: Corrosive, Exclamation Mark, Health Hazard
Signal Word: Warning
Hazard Statements: Causes serious eye damage and skin irritation, suspected of causing cancer, harmful if swallowed or inhaled, may cause damage to organs through prolonged or repeated exposure.
Precautionary Statements: Wear appropriate PPE, avoid contact with eyes, skin and clothing, keep out of reach of children, avoid breathing vapors or mist, wash exposed skin thoroughly after handling.
Substance: Diethanolamine
Concentration: > 99%
Impurities: Trace amounts of monoethanolamine, triethanolamine, water
Exposure Limits: OSHA PEL: Not established, ACGIH TLV: 1 mg/m³ (skin), NIOSH REL: 3 mg/m³
Relevant Additives: No major additives present in technical-grade material commonly used in industry.
General Advice: Get medical attention for all exposures. Remove contaminated clothing immediately and wash affected area with water.
Inhalation: Move to fresh air, support breathing if needed. Keep airways open and watch for delayed symptoms.
Skin Contact: Wash with soap and plenty of water for at least 15 minutes. Cover irritated skin with clean bandages.
Eye Contact: Rinse eyes cautiously with water for at least 20 minutes while removing contact lenses. Seek immediate medical help.
Ingestion: Rinse mouth, never induce vomiting, get immediate medical advice. Monitor for confusion, respiratory issues, or prolonged symptoms.
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: High-pressure water streams may spread the chemical.
Hazardous Combustion Products: Emits toxic fumes such as carbon monoxide, carbon dioxide, nitrogen oxides during combustion.
Protective Equipment for Firefighters: Full bunker gear with self-contained breathing apparatus.
Firefighting Advice: Use water spray to cool containers exposed to fire. Approach from upwind to avoid hazardous vapors.
Personal Precautions: Wear appropriate gloves, goggles, and impervious clothing. Evacuate persons to safe area. Permit only trained personnel.
Environmental Precautions: Prevent spills from entering sewers, waterways, or soil. Alert relevant authorities if contamination has occurred.
Methods for Containment: Stop leak if safe, dike area with non-combustible material. Avoid raising dust.
Cleanup Methods: Absorb spill with inert dry material like sand or earth. Shovel into suitable containers for proper disposal. Ventilate area thoroughly.
Protective Measures: Use only in well-ventilated areas, avoid inhalation or contact with eyes, skin, clothing. Clean up spills quickly.
Safe Storage Conditions: Store in tightly closed containers away from incompatible substances like acids, nitrates, oxidizers. Keep in a cool, dry, well-ventilated place.
Incompatibilities: Strong acids, strong oxidizing agents, copper alloys, galvanized surfaces.
Handling Advice: Handle only with proper PPE and safety training. Never eat, drink, or smoke in work area.
Engineering Controls: Provide local exhaust or general room ventilation to control vapor or mist. Use isolation where feasible.
Eye/Face Protection: Safety goggles or face shield.
Skin Protection: Chemical-resistant gloves, lab coat or coveralls.
Respiratory Protection: Approved respirators in areas of insufficient ventilation or high concentration.
Control Parameters: Monitor air regularly; ensure levels do not exceed recommended exposure limits.
Physical State: Clear, viscous liquid
Color: Colorless to pale yellow
Odor: Slight ammonia-like
pH: 10.5 (100 g/L in water)
Melting Point: 28 °C (82 °F)
Boiling Point: 269 °C (516 °F)
Flash Point: 168 °C (334 °F) (closed cup)
Vapor Pressure: 0.2 mmHg at 20°C
Solubility: Miscible in water
Density: 1.09 g/cm³ at 20°C
Auto-ignition Temperature: 602 °C (1116 °F)
Viscosity: 346 mPa·s at 25°C
Chemical Stability: Stable under recommended storage conditions.
Reactivity: Reacts with strong acids, acid chlorides, oxidizers to generate heat and hazardous gases.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides.
Polymerization: No hazardous polymerization expected.
Conditions to Avoid: Excessive heat, contaminated air, incompatible materials.
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: LD50 Oral (rat): 710 mg/kg; LD50 Dermal (rabbit): > 2000 mg/kg
Skin/Eye Irritation: Causes severe irritation and possible burns
Carcinogenicity: IARC Group 2B (possibly carcinogenic to humans)
Chronic Effects: Liver and kidney damage in prolonged or repeated exposure
Other Health Effects: Respiratory irritation, allergic reactions, CNS effects at high dosage
Ecotoxicity: Harmful to aquatic life; LC50 (96hr, fish): 6000 mg/L
Persistence and Degradability: Biodegradable, yet persistence possible in high concentrations
Bioaccumulative Potential: Low based on low octanol-water partition coefficient
Mobility in Soil: High water solubility, can migrate to groundwater if spilled
Other Adverse Effects: Alters pH of water bodies, affecting aquatic organisms
Disposal Methods: Incineration in approved facility preferred. Follow all local, state, and federal regulations for hazardous chemical waste. Waste must not be disposed of in drains, watercourses, or on the ground.
Container Disposal: Triple rinse containers before disposal. Puncture and dispose of containers in compliance with local guidelines.
Recycling: Contact hazardous waste professional for options if recycling is viable in your region.
Special Precautions: Prepare waste transport using proper labeling and documentation to avoid environmental release.
UN Number: Not regulated for ground or air transport under most conditions, check local rules as bulk shipments may differ.
Transport Hazard Class: Not classified
Packing Group: Not assigned
Environmental Hazards: None listed in standard classifications, yet large releases may pose risk to water systems
Special Precautions: Secure containers upright, away from incompatible goods, with emergency response information available
OSHA: Hazardous Chemical
SARA 313: Listed as a toxic chemical and subject to reporting level regulations
TSCA: Listed in the Toxic Substances Control Act Inventory
IARC Monograph: Group 2B carcinogen
California Proposition 65: Warning required for reproductive toxicity risk
Other Local Regulations: Regional occupational health and safety authorities may impose stricter controls; always check the most recent updates for your jurisdiction
