Methyldiethanolamine

Methyldiethanolamine (CAS 105-59-9), commonly known as MDEA, is a tertiary amine alcohol.

Where is Methyldiethanolamine used?

• Gas processing: selective acid gas absorbent and pH buffer
• Natural gas and refinery operations: selective H2S removal from gas streams containing CO2, with lower regeneration energy costs than competing amines
• Personal care: pH adjuster and neutralizing agent in creams, lotions, and hair care products, with mild conditioning properties
• Water treatment: pH control and corrosion inhibition in industrial cooling and boiler systems
• Polymer and coatings chemistry: curing co-agent and crosslinker intermediate in polyurethane and epoxy formulations

Good to know: Pharmaceutical-grade material is available for regulated applications requiring compliance with specific industry safety and purity protocols.

Commercial specifications

• Concentrations of 99% and above