Monoethanolamine (MEOA), also known as 2-aminoethanol or MEA, is a versatile organic chemical compound with the formula $HOCH_2CH_2NH_2$. As a bifunctional molecule, it possesses the reactive properties of both a primary amine and a primary alcohol, making it a critical intermediate in organic synthesis. It is a colorless, viscous liquid at room temperature with a distinct, mildly ammoniacal odor. MEOA is produced industrially by the reaction of ethylene oxide with aqueous ammonia; this process also yields diethanolamine (DEA) and triethanolamine (TEA), which are separated via distillation.
MEOA is highly hygroscopic and completely miscible with water, Alcohol, and acetone. It plays a pivotal role in environmental engineering as a primary agent for “gas sweetening,” effectively removing acidic components like carbon dioxide ($CO_2$) and hydrogen sulfide ($H_2S$) from natural gas and refinery process streams. Due to its alkaline nature and surfactant-precursor capabilities, it is indispensable in the formulation of detergents, personal care products, and agricultural chemicals. Proper handling is essential, as it is classified as a corrosive substance.
* Serves as a versatile chemical intermediate combining amine and alcohol functionalities.
* Highly effective for removing acid gases like CO2 and H2S from natural gas and refinery streams.
* An essential building block for producing detergents, emulsifiers, and surfactants.
* Functions as a key component in corrosion inhibitors for coolants and metalworking fluids.
* Widely used in textile processing, rubber manufacturing, and agricultural chemical formulations.
* Acts as a reliable pH adjuster and emulsifier in personal care and cosmetic products.
* Employed as a catalyst in urethane foam production and a curing agent for epoxy resins.
* Offers excellent miscibility with both water and a wide range of organic solvents.
* Appearance: Clear, colorless liquid
* Purity, % wt (MEOA): 99.5 min
* Water Content, % wt: 0.2 max
* Color, Pt-Co: 15 max
* Density @ 20°C, g/cm³: 1.014 – 1.019
* pH (10% solution): 10.0 – 11.5
* Freezing Point, °C: 10.5
* Boiling Point, °C: 170.8
* Flash Point, °C (PMCC): 93
* Viscosity @ 20°C, cP: 24.1
* **Gas Treating:** Used in gas treating plants to efficiently remove acidic gases like CO2 and H2S from process streams.
* **Chemical Synthesis Intermediate:** Serves as a key intermediate in the synthesis of various other chemicals.
* **Urethane Catalyst:** Functions as a catalyst to accelerate reactions in urethane production.
* **Textile Softeners & Surfactants:** Employed in the manufacture of textile softeners and as an intermediate for producing surfactants.
* **Pharmaceuticals:** Applied in the formulation and synthesis of various pharmaceutical products.
* **Water Treatment & Corrosion Inhibition:** Utilized in water treatment processes and as an effective corrosion inhibitor.
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