C2H7NO

C2H7NO refers to monoethanolamine, also known as 2-aminoethanol or ethanolamine. It is an organic compound that contains both a hydroxyl group and a primary amine, giving the structure HO-CH2-CH2-NH2. It is a colorless to off-white liquid with a characteristic odor typical of amines and is highly miscible with water and many organic solvents.

Production and occurrence

Monoethanolamine is produced industrially by the hydroamination of ethylene oxide with ammonia, a process that adds both the amine and hydroxyl functionality in a single step. It is a widely used building block in chemical manufacturing and is often converted into derivatives such as surfactants, solvents, and intermediates for other amines.

Properties

MEA is a polar, reactive compound that participates in a range of reactions due to its two functional groups. It is hygroscopic and readily forms both physical and chemical blends with water. It can form salts with acids and reacts with epoxides to give beta-amino alcohols. In industry, derivatives of monoethanolamine are prominent in detergents, cleaners, and polymer applications.

Uses

The compound serves as a versatile raw material in the production of surfactants (including ethoxylates), corrosion inhibitors, and various amine intermediates. It is also used as an absorbent in gas treating processes to remove acids such as CO2 and H2S from natural gas and syngas streams. Additionally, MEA is employed as a pH adjuster and solvent in several chemical and cosmetic formulations.

Safety

Monoethanolamine is corrosive to skin and eyes and can be irritating on contact or inhalation. It is harmful if swallowed and should be stored away from oxidizers in a well-ventilated area. Proper handling, protective equipment, and adherence to safety regulations are required in its use.