I-Tetraethylenepentamine, eyaziwa nangokuthi i-tritetraethylenediamine, efushaniswe ngokuthi i-TEPA, iwuketshezi olucwebezelayo oluphuzi noma olubomvu-orenji. Incibilika kalula emanzini, i-ethanol kanye neziningi zezinto eziphilayo, ayincibiliki ku-benzene kanye ne-ether. Imunca kalula amanzi kanye ne-carbon dioxide emoyeni. I-Alkaline. Itholakala ngokusabela kokushisa kanye nokusabela kwe-ammonolysis phakathi kwe-dichloroethane ne-ammonia, inciphise i-alkali bese ihluzwa ngaphansi kwengcindezi encishisiwe. Isetshenziswa njengesixazululo se-gas chromatography esimile sokugcina kanye nokuhlukaniswa kwe-Chemicalbook kwama-alcohols, ama-amine, i-pyridine, i-quinoline, i-piperazine, ama-thiol kanye namanzi. Isetshenziswa kuma-resin okushintshana kwe-anion, izithasiselo zamafutha okugcoba, izithasiselo zamafutha kaphethiloli, futhi isetshenziswa njengezinto zokupholisa i-epoxy resin, izisheshisi ze-rubber vulcanization, njll.

Inhloso

I-Tetraethylene pentamine ingasetshenziswa ekuhlanganiseni okuyinkimbinkimbi kwethusi, i-zinc kanye ne-nickel ngendlela yamanje yokugcina, ukuhlanganiswa kwezinto ezine-acidic, irabha yokwenziwa kanye ne-resin gas purification kanye ne-dehydration agent. Iphinde isetshenziswe njengezithasiselo, ama-curing agents, ama-accelerators, njll.

Indlela yokukhiqiza:

Lo mkhiqizo uwumkhiqizo ohlangene we-ethylenediamine, i-diethylenetriamine, i-triethylenetetramine, kanye ne-polyethylenepolyamine. Ukuze uthole izimiso zokukhiqiza kanye nokusebenza, sicela ubheke i-ethylenediamine. Kodwa-ke, izinga lokushisa lokusabela kwe-ammonolysis kudingeka libe ngu-160 kuya ku-250°C, futhi ingcindezi kufanele ibe ngaphezu kuka-4.0MPa. Hlanza umkhiqizo we-polyamine ongahluziwe ngaphansi kwengcindezi encishisiwe, qoqa izingxenyana ku-160-210°C ngaphansi kwengcindezi engu-1.3kPa, bese uthola umkhiqizo oqediwe. Incwadi Yezokwelapha ye-tetraethylpentamine ngemva kokupholisa. Indlela Yokuhlanza: Hlanza ngamanzi nge-sodium yensimbi noma i-calcium sulfate engamanzi bese uhlukanisa ngaphansi kwengcindezi encishisiwe. Ungaphinde uncibilikise i-150g ye-tetraethylenepentamine ku-300mL ye-ethanol engu-95%, bese wehlisa kancane kancane i-180mL ye-hydrochloric acid egxilile ngenkathi uphola, ugcine izinga lokushisa lingaphansi kuka-20°C. Hlunga i-white precipitate, uyiphinde uyifake kathathu ngengxube ye-ethanol namanzi, ugeze nge-ether, bese uyomisa ngaphansi kwe-vacuum ukuze uthole i-tetraethylenepentamine hydrochloride emsulwa.

imvelo

Inombolo ye-CAS 112-57-2

Ifomula yama-molecule C8H23N5

Isisindo sama-molecule 189.3

Inombolo ye-EINECS 203-986-2

Iphuzu lokuncibilika -40°C (ngokukhanya)

Iphuzu lokubila 340°C

Ubuningi 0.998g/mL ku-25°C (ngokukhanya)

Ubuningi bomusi 6.53 (vsair)

Inkomba yokubuka kabusha n20/D1.505 (lit. .)

Iphoyinti lokuphazima 365°F

Izimo zokugcina Isitolo Ngaphansi kuka-+30°

Ulwazi lokuxhumana

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