What Is Monoethanolamine
MEA (CAS 141-43-5) is an organic compound with the chemical formula C2H7NO and a molecular weight of 61.08. Because it possesses properties similar to both alcohols and amines, it is also known as ethanolamine or 2-aminoethanol. MEA is a colorless liquid with a weak ammonia odor, and it is hygroscopic and volatile at room temperature.
Chemical Properties
Monoethanolamine can undergo acylation, condensation and addition reactions with acids, aldehydes, ketones and esters, and it is commonly used in the synthesis of organic compounds such as pharmaceuticals, plastics, dyes, adhesives, surfactants and catalysts. It is an organic base and possesses basic properties, capable of neutralizing acids. The nitrogen and oxygen atoms of monoethanolamine contain lone pairs of electrons, giving it strong nucleophilicity, allowing it to participate in various chemical reactions, such as substitution and addition reactions. It is a good organic solvent and can dissolve many organic and inorganic substances, and under certain conditions it can undergo a dehydration reaction to produce vinyl alcohol compounds.
Hazards of Monoethanolamine
The main hazards of MEA lie in its irritant and corrosive properties. Contact with skin or eyes can cause severe irritation and burns. Furthermore, inhalation or ingestion of monoethanolamine can also harm human health. Therefore, when handling and using monoethanolamine, strict adherence to safety operating procedures and wearing appropriate protective equipment are essential.
Applications
MEA is widely used in the production of synthetic pharmaceuticals, plastics, dyes, adhesives, surfactants, catalysts and other organic compounds. It is also used in cleaning agents, skincare products, silicone foams, livestock products, fertilizers and coatings. Its dual alcohol-amine chemistry makes it a versatile building block and processing chemical.
Handling and Storage
MEA is stored in sealed containers away from acids and oxidizers, in a cool and ventilated area. The handling requires protective gloves, goggles and ventilation, and the exposure limits are enforced by the occupational safety regulations. The COA and SDS are provided with each batch.
Frequently Asked Questions
What is MEA? Monoethanolamine, also called ethanolamine, with the formula C2H7NO.
What are the chemical properties? Basicity, nucleophilicity, solvent properties and dehydration reactions.
What are the hazards? Irritant and corrosive to skin and eyes.
What is MEA used for? Pharmaceuticals, plastics, dyes, adhesives, surfactants and cleaners.
How should MEA be handled? With gloves, goggles and ventilation, away from acids.