Methyldiethanolamine (MDEA)
CAS No: 105-59-9
MDEA is a tertiary alkanolamine used predominantly in gas sweetening processes. It selectively removes hydrogen sulphide over carbon dioxide and is valued for its low corrosivity and thermal stability.
Synonyms
MDEA, N-Methyldiethanolamine, 2,2'-(Methylimino)diethanol
Formula
C₅H₁₃NO₂
CAS No
105-59-9
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Properties
- Molecular weight: 119.16 g/mol
- Aggregation state: Liquid
- Density: ~1.04 g/cm³
- Boiling point: ~247 °C
- Melting point: ~21 °C
- Refractive index: ~1.455
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Key applications
- Gas treatment (natural gas, refinery gas)
- CO₂ and H₂S removal
- pH adjustment
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Industries
- Oil and Gas
- Chemical Manufacturing
- Refining
- Water Treatment