Propyldiethanolamine

Propyldiethanolamine (CAS 6735-35-9) is a tertiary alkanolamine combining amine and hydroxyl functionality, effective as a pH buffer, corrosion inhibitor and emulsifier. Also known as N-Propyldiethanolamine.

Where is Propyldiethanolamine used?

• Metalworking fluids and cutting coolants: buffers pH and inhibits ferrous and non-ferrous metal corrosion
• Industrial and institutional cleaning: emulsifies oils and disperses soils while maintaining alkaline stability under dilution
• Water treatment: corrosion inhibitor and chelating agent controlling scale and metal ion interference in recirculating systems
• Coatings and adhesives: neutralizing amine for acid-functional resins, improving dispersion stability and substrate adhesion in waterborne systems

Commercial specifications

• Purity commonly 98–99%+ depending on supplier requirements
• Packaging from drums to intermediate bulk containers (IBCs)