Tetraethylenepentamine (TEPA) is a versatile chemical substance with a wide range of uses covering many industrial fields. The following are the main uses of tetraethylene pentamine:‌12

1. Synthetic resins and plastics
‌Polyamide Resin‌: Tetraethylenepentamine is used to synthesize polyamide resin, a thermoplastic with high strength and heat resistance.
‌‌Cation Exchange Resin‌: Used to manufacture cation exchange resins, which play an important role in water treatment and purification processes.
2. Additives
‌Lubricating oil additives‌: Improve the performance of lubricating oil and reduce friction and wear.
‌Fuel oil additives‌: Improve the combustion efficiency and performance of fuel oil.
3. Curing agent and accelerator
‌Epoxy Resin Curing Agent‌: Used to cure epoxy resin and enhance its hardness and chemical resistance.
‌Rubber vulcanization accelerator‌: Accelerates the vulcanization process of rubber and improves the quality and durability of rubber products.

4. Metal-catalyzed reactions

Tetraethylenepentamine is often used as an organic base in organic synthesis because it contains multiple amino units and can form multiple coordination bonds. Its amino unit can form a complex with metal ions and has good coordination ability and selectivity. It is widely used in metal catalytic reactions and has good applications in metal ion capture and separation.
5. Other applications
‌Anion exchange resin‌: Used to manufacture anion exchange resin for water treatment and purification.
‌Complexometric titration‌: Used for the complexometric titration of metal elements such as copper, zinc and nickel using the current endpoint method.
‌Saponification reaction‌: Participates in the saponification process of acidic substances.
‌Gas purification and dehydration agent‌: used in the gas purification and dehydration process of synthetic rubber and resin.

1,4,7,10,13-Pentaazatridecane Chemical Properties
Melting point -40 °C (lit.)
Boiling point 340 °C
density 0.998 g/mL at 25 °C (lit.)
vapor density 6.53 (vs air)
vapor pressure <0.01 mm Hg ( 20 °C)
refractive index n20/D 1.505(lit.)
Fp 365 °F
storage temp. Store below +30°C.
solubility 6540g/l
form Liquid
pka pK1:2.98(+5);pK2:4.72(+4);pK3:8.08(+3);pK4:9.10(+2);pK5:9.67(+1) (25°C,)
color Clear
PH 11.8 (20g/l, H2O, 20℃)
Odor ammonia odor
explosive limit 0.1-15%(V)
Water Solubility SOLUBLE

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