User:Giqa/sandbox

Tetraethylenepentamine, abbreviated TEPA, is a viscous liquid formed by a mixture of linear, branched and cyclic pentamines (also referred to as ‘congeners’). TEPA has a pale yellow colour and an ammonia-like odor. It is readily soluble in both water and organic solvents. TEPA is a chemical building block mainly used in the manufacture of epoxy curing agents, lubricating oils, fuels, and polyamide resins. Additional applications include asphalt additives, corrosion inhibitors, paper additives, hydrocarbon recovery and purification, mineral processing aids, surfactants, and textile adhesives.

capture
Due to the high amine-content and the well-known reaction of these groups with , TEPA has been applied to carbon capture, mainly via its immobilization in porous adsorbents.

Cyclability
When adsorbed on porous materials, TEPA usually show some leaching or amine loss, although not as much as observed with lower molecular weight compounds such as ethylenediamine, hexamethylenediamine, piperazine and hexamethyleneimine. This is probably the reason why tetraethylenepentamine is much less studied than polyethyleneimine (PEI) for capture.