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Monoethanolamine
Specification
Product code:  MEA
Description:  A clear, water-white, hygroscopic liquid with a mild ammoniacal odor.
Structure: NH2 - CH2CH2OH Mol. Wt: 61.08
Chemical name: Monoethanolamine
Synonyms: Amino-2-Hydroxyethane, Amino ethyl alcohol, 2-Ethanolamine, Amino ethanol, 2-Hydroxyethylamine. 
CAS number: 141 – 43 -5
Specifications  Appearance at 25°C: Clear viscous liquid
Color: Colorless to pale yellow
pH 10.0 - 12.0
% Water 0.3 Max.
% Purity 99.5 Min
Method of analysis:  Methods of analysis are available upon request.
Typical data  Chemical and physical data typical values 
Specific gravity, 20/20ºC 1.016 – 1.020
Flash point °C About 92
Solubility The solubility at 20°C is as follows: Water soluble 
Applications  A chemical intermediate in the manufacture of cosmetics, surface-active agents, emulsifiers, pharmaceuticals, and plasticizing agents; a gas-scrubbing agent for the absorption and removal of H2S and CO2 from refinery and natural gas streams; carbon dioxide and ammonia manufacturing. 
Handling and storage:  Monoethanolamine may be satisfactorily stored in carbon steel, stainless steel, or aluminum tanks using steel pipes and pumps. Caution must be exercised, however, to keep the material in the anhydrous state to prevent severe corrosion to the carbon steel or aluminum tank and related equipment. A drier on the breathing nozzle is recommended to help maintain anhydrous conditions in the storage tank.

For longer term color stability, it is recommended that the product be stored under an inert atmosphere. Solid sediment may form upon standing. There should be circulation in the storage vessel to keep solids suspended.

Low pressure steam coils in storage tanks and heat tracing of transfer lines should be provided in cases where low environmental temperatures may make pumping of the product difficult.