MEA

A primary amine with a high pH, MEA is classified as a DOT corrosive material. Carbonyl sulfide, carbon disulfide, sulfur dioxide and sulfite containing compounds can partially deactivate MEA, but most of the deactivated amine can be recovered with a reclaimer, as in the case of natural gas treating operations.  Typically operated at < 15 Wt. % in amine treating applications.  INEOS Oxide supplies MEA in both concentrated and low freeze grade options.

Physical Properties†

 Chemical Name  CAS Number  Structural Formula Physical Form, 25°C  Grade Explanation  Molecular Weight Vapor Pressure, mm Hg
2-Aminoethanol (monoethanolamine) 141-43-5 HOC2H4NH2 Liquid Commercial 61.08 0.241

  Viscosity, cps Solubility, gm/100gm, 25°C
Boiling Point, °C (°F) 760 mm Hg Freezing Point, °C (°F) †† Flash Point, °C (°F) Specific Gravity, 25/4°C Pounds per Gallon, 25°C  25°C  60°C  ACE  MEOH  ETH  H2O
171 (340) 10 (50) 94 (201)2 1.0113 8.45 18.9 5.0 CM CM ~ 2.2 CM

1 20°C
2 L.T. Setaflash
† The physical property data shown are to be considered typical properties, not specifications.
†† Alkanolamines may supercool. Exact freezing point is not always predictable.

PDFs
Handling Frozen Ethanolamines (33K PDF)
Ethanolamines: Low Freezing Grades (33K PDF)
Biodegradability of the Ethanolamines (33K PDF)
Basic Chemicals with Surfactant Properties for Personal Care Products (33K PDF)
Toxicology Overview: Ethanolamines (33K PDF)
Ethanolamine Storage and Handling Considerations (33K PDF)