Monoethanolamine (MEA)
CAS 141-43-5 C2H7NO
- CAS number
- 141-43-5
- EC number
- 205-483-3
- Formula
- C2H7NO
- Molar mass
- 61.08 g/mol
- Appearance
- Clear colourless to pale-yellow viscous liquid, ammoniacal odour; hygroscopic; freezes ~10 °C.
- HS code
- 2922.11
Monoethanolamine is a bifunctional amino-alcohol and the classic acid-gas scrubbing agent, also a surfactant and formulation feedstock. Ehlinar sources gas-treating and general grades — note its corrosivity and material-compatibility needs.
Applications
Gas treatingCO₂/H₂S acid-gas scrubbing (amine gas treating)
DetergentsSurfactants, emulsifiers and cleaning formulations
Water treatmentBoiler and cooling-water pH control and corrosion inhibition
IndustrialTextile/leather processing and cement grinding aids
IntermediatesAgrochemical and pharma intermediate
Grades & packaging
Commercial ≥99%, gas-treating grade, and low-freeze blends; also supplied as aqueous solutions.
- 200–210 kg drums
- IBC
- ISO tanks
- Bulk (N₂-blanketed)
Also known as
2-aminoethanol · Ethanolamine · 2-hydroxyethylamine · Colamine · MEA
Frequently asked questions
- What is the difference between MEA, DEA and TEA?
- The number of ethanolamine groups differs. MEA is the most basic and reactive of the three — pick by application.
- Which grade for CO₂ capture?
- ≥99% MEA, often run as a ~30% aqueous solution with corrosion inhibitors.
- How is it stored?
- Under nitrogen, in stainless steel; avoid copper, aluminium and zinc; prevent freezing (~10 °C).
Enquire about Monoethanolamine
Related products
Figures and identifiers here are compiled from public references and provided for general information; they are indicative, not a specification. See all products.