Ethanolamine family has three members- monoethanolamine,diethanolamine andtri-ethanolamine.Monoethanolamine ismainly used in absorbing acid gases,makingantibiotics and producing syntheticdyestuffs,ethylene amine,surfactants,air refreshing agent and anti-freezingagents etc.Diethanolamine can be usedas raw material in making buffers in thepharmaceuticals industry,or as acrosslink agent in making polyurethanefoam materials.It is an important raw