Monoethanolamine (MEA) is a highly viscous, hydrophilic, colorless liquid and organic compound with an ammonia-like odor. The chemical formula of this compound is C2H7NO. MEA is soluble in water, benzene, ether, and carbon tetrachloride. It absorbs moisture and can react with carbon dioxide in the air, which then decomposes under the influence of light and is slowly oxidized by air, changing its color to yellow or brown.
It is corrosive to metals such as copper, brass, iron, bronze, aluminum, and zinc. Monoethanolamine has the properties of both alcohols and amines, which is why it is capable of chemical reactions with both groups. As an amine, alkylamines are intermediates that react with acids to form salts and soaps, and as an alcohol, it is hydrophilic and capable of esterification.
Technical Characteristics
| Chemical Formula | C2H7NO |
| Other names | 2-Aminoethanol 2-Amino-1-ethanol 2-Aminoethan-1-ol Monoethanolamine β-Aminoethanol β-hydroxyethylamine β-Aminoethyl alcohol Glycinol Olamine MEA Ethylolamine 2-Hydroxyethylamine Colamine |
| CAS Number | 141-43-5 |
| Molecular Weight | 61.084 g·mol−1 |
| Melting Point | 10.3 °C |
| Boiling Point: | 170 °C |
| Appearance | Viscous colorless liquid |
Applications
– Gas stream scrubbing
– Feedstock in the production of detergents, emulsifiers, pharmaceuticals, and corrosion inhibitors
– Buffer
– pH regulator
Environmental impact of MEA
Monoethanolamine (MEA) can harm the environment if released or disposed of improperly. It can dissolve in water and harm aquatic ecosystems and aquatic organisms, and can disrupt microbial balance in soil. Proper disposal and management of MEA is essential to mitigate these impacts.
Safety Measures and Regulations for Handling MEA
Monoethanolamine (MEA) is a corrosive and flammable chemical that can damage the skin, eyes, and respiratory tract upon direct contact. When working with MEA, it is essential to use personal protective equipment such as heavy-duty gloves, safety glasses, and a mask. It should be stored in corrosion-resistant containers in a dry, cool, and well-ventilated area. Also, waste containing MEA should be disposed of in accordance with environmental regulations to prevent environmental pollution.
Packing
This chemical can be supplied in 230 kg barrels.