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Monoethanolamine (MEA)

99% • gas treating • amines

CAS: 141-43-5 Formula: C₂H₇NO HS: 2922.11 (monoethanolamine) UN 2491 · Class 8 · PG III GHS: Skin Corr. 1B (H314); Eye Dam. 1 (H318); Acute Tox. 4 (H302); STOT SE 3 (H335) Incoterms: FOB/CIF/EXW Ports: Rotterdam • Antwerp
Assay (MEA)
≥ 99.0%
Water (KF)
≤ 0.50%
Boiling point
≈ 170–171 °C
Flash point (CC)
≈ 85–93 °C
Freeze point
≈ 10.3 °C
Parameter Typical Spec
MEA assay 99.5% ≥ 99.0%
Water (KF) 0.20% ≤ 0.30%
Color (APHA) ≤ 10 ≤ 15
Diethanolamine (DEA) ≤ 0.30% ≤ 0.80%
Triethanolamine (TEA) ≤ 0.10% ≤ 0.30%
Residue on evap. ≤ 0.010% ≤ 0.020%
Chloride (Cl⁻) ≤ 5 ppm ≤ 10 ppm
Appearance clear, colorless to pale yellow liquid
Applications Packaging Storage & Handling
• Gas treating (amine sweetening for CO₂/H₂S removal).
• Neutralizing amine in coatings, textiles and water treatment.
• Surfactants, corrosion inhibitors, cement grinding aids; chemical intermediate.
• 200 kg drums • 1000 L IBC totes.
• Bulk road tanker / ISO tank.
• UN 2491 Class 8 (corrosive). Avoid contact with skin/eyes; provide local exhaust and splash protection.
• Absorbs CO₂ and moisture — keep tightly closed, preferably nitrogen blanketed. Store above ~12 °C to avoid crystallization; warm gently if solidifies.
• Compatible: carbon steel or 304/316L SS; HDPE/PP/PTFE. Avoid copper, brass, zinc and galvanized parts.
Specs are representative; supply conforms to the COA for the lot shipped. If you stock only one variant, remove the other tab to keep leads focused.

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