Tetraethylenepentamine, also mention to as tritetraethylenediamine, or TEPA, is a versatile yellow or orange-red syrupy liquid with alone property. It is easily soluble in water, ethyl alcohol, and most organic solvent, but insoluble in benzene and quintessence. This compound hour angle the ability to absorb water and carbon dioxide from the air, devising it alkaline in nature. TEPA is commonly use in assorted application such as gas chromatography stationary solution for selective retention and separation of different compound like alcohol, amine, pyridine, quinoline, piperazine, thiols, and water. It is also use in anion exchange resin, lubricate oil additive, fuel oil additive, and serve as epoxy resin hardening agent and rubber vulcanization accelerators.

Purpose: Tetraethylenepentamine discovery its use in the complex titration of metallic element like copper, zinc, and nickel exploitation the current end point method. It is also use in the saponification of acidic substance, gas purification, dehydration agent, synthetic rubber, and resin application. Additionally, TEPA is use as additive, hardening agent, and accelerator in assorted industries.

production of tetraethylenepentamine involve multiple stairs and is a carbon monoxide-merchandise of ethylenediamine, diethylenetriamine, triethylenetetramine, and polyethylenepolyamine. The production method include thermal amination and ammonolysis chemical reaction, neutralization, and distillation under reduce pressure. The refining procedure involve dehydration, fractionation under reduce pressure, and recrystallization for obtain pure tetraethylenepentamine hydrochloride. With a molecular weight of 189.3 and calcium number 112-57-2, TEPA hour angle a boiling point of 340 ° degree centigrade, a density of 0.998g / milliliter at 25 ° degree centigrade, and a flash point of 365 ° F.

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