Ethanolamines
CAS No: 141-43-5
Ethanolamine is a colourless, viscous, hygroscopic liquid with an ammonia-like odour. It is both a primary amine and a primary alcohol, making it highly reactive and useful in a wide variety of chemical processes. It serves as a building block in the production of surfactants, emulsifiers, corrosion inhibitors, and gas treatment solutions.
Synonyms
Monoethanolamine, 2-Aminoethanol, MEA
Formula
HOCH₂CH₂NH₂
CAS No
141-43-5
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Properties
- Molecular Weight: 61.08 g/mol
- Aggregation State: Liquid
- Density: ~1.018 g/cm³ at 20°C
- Boiling Point: ~170 °C
- Melting Point: ~10.5 °C
- Refractive Index: ~1.454 at 20 °C
- pKa: 9.5 (conjugate acid)
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Key applications
- Gas sweetening (removal of CO₂ and H₂S from natural gas and refinery gas streams)
- Surfactant and detergent manufacturing Emulsifiers and corrosion inhibitors
- pH control and neutralisation in cosmetic and pharmaceutical formulations
- Production of herbicides and agrochemical intermediates
- Cement additive and chemical intermediate
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Industries
- Gas & Refining
- Personal & Home Care
- Agrochemicals
- Lubricants
- Chemical Synthesis
- Pharmaceuticals