Monoethanolamine (MEA) Overview
Monoethanolamine (MEA) is an important organic compound with the chemical formula C₂H₇NO. At room temperature, it is a colorless, viscous liquid with an ammonia-like odor and strong alkalinity. As a versatile chemical, MEA is widely applied across industrial, pharmaceutical, agricultural, and personal care sectors.
Monoethanolamine (MEA) Industrial Uses
Natural Gas and Refinery Gas Desulfurization
Monoethanolamine is a core reagent in industrial desulfurization processes. In natural gas and refinery off-gas treatment, MEA is used in the amine gas treating process to selectively absorb hydrogen sulfide (H₂S) and carbon dioxide (CO₂). The principle lies in its reversible reaction with acidic gases to form salts, which release the gases upon heating, allowing MEA to be regenerated and recycled. Industry data indicates that about 60% of global MEA consumption goes into gas desulfurization, with demand rising significantly in shale gas development.
Metal Processing and Corrosion Protection
In machining, MEA acts as a corrosion inhibitor in cutting fluids and rust preventives by adsorbing onto metal surfaces and forming a protective film. In the automotive industry, certain electroplating baths also incorporate MEA to improve coating stability.
Electronics Industry Cleaning Agents
In semiconductor manufacturing, MEA solutions are used to remove photoresist residues. Compared to strong acids or bases, MEA offers a milder cleaning effect, reducing potential damage to silicon wafers.
Surfactants and Personal Care
Surfactant Synthesis
MEA is a key raw material for nonionic surfactants. It reacts with fatty acids to form ethanolamine soaps (such as MEA cocoate), which are widely used in detergents, shampoos, and body washes. These surfactants provide rich foam, low irritation, and pH adjustment capability.
Personal Care and Cosmetics
In skincare products, MEA is often used as a pH adjuster (e.g., in facial cleansers) or as an emulsifier to stabilize cream formulations. Laboratory studies have shown that combining MEA with hyaluronic acid can enhance moisturizing effects by up to 30%.
Pharmaceutical and Agricultural Uses
Pharmaceutical Intermediate
MEA serves as a critical starting material in the synthesis of several drugs. For instance, the local anesthetic lidocaine is prepared from MEA. Certain antihistamines and antibiotics also involve MEA-derived intermediates.
Agricultural Applications
In agriculture, MEA is used as a pesticide emulsifier, improving adhesion and effectiveness of sprays. It can also react with phosphoric acid to produce ethanolamine phosphates, which function as foliar fertilizers supplying nitrogen and phosphorus. Studies show that such fertilizers can enhance crop uptake of trace elements.
Why choose Gneebio?
Gneebio, with decades of experience in research, manufacturing, and marketing of organic chemicals, is one of the leading exporters of chemical products in Henan, China. Over the years, we have been committed to the chemical industries of intermediates, plastic additives, water treatment chemicals and fungicides, and daily chemicals.
Advantages
1) Small batch shipment and sub-packaging are available.
2). Provide COA, MSDS, Health Certificate, and Origin Certificate.
3) Quality first, service best.
Click here to get the latest global Monoethanolamine/MEA CAS:141-43-5 market prices for 2026.