I-Tetraethylenepentamine, eyaziwa nangokuthi i-tritetraethylenediamine, efushanisiwe njenge-TEPA, iwuketshezi lwe-viscous oluphuzi noma oluwolintshi. Incibilika kalula emanzini, i-ethanol kanye nezinyibilikisi eziningi eziphilayo, ezingancibiliki ku-benzene ne-ether.Imunca kalula amanzi ne-carbon dioxide emoyeni. I-alkaline. Itholakala ngokusabela okushisayo nokusabela kwe-ammonolysis phakathi kwe-dichloroethane ne-ammonia, ingathathi hlangothi nge-alkali bese i-distilling ngaphansi kwengcindezi encishisiwe. Isetshenziswa njengesixazululo esimile se-chromatography yegesi yokugcinwa okukhethiwe kanye nokuhlukaniswa kwe-Chemicalbook yotshwala, ama-amine, i-pyridine, i-quinoline, i-piperazine, i-thiols namanzi. Isetshenziswa kuma-anion exchange resins, izithasiselo zikawoyela wokugcoba, izithasiselo zikawoyela kaphethiloli, futhi zisetshenziswa njengama-epoxy resin elaphayo, ama-accelerator e-rubber vulcanization, njll.

Inhloso

:I-Tetraethylene pentamine ingasetshenziselwa ukufakwa kwe-titration eyinkimbinkimbi yethusi, i-zinc kanye ne-nickel ngendlela yamanje yokugcina, i-saponification yezinto ezine-asidi, irabha yokwenziwa kanye nokuhlanzwa kwegesi ye-resin kanye ne-ejenti yokuqeda amanzi emzimbeni. Ibuye isetshenziswe njengezithasiselo, ama-ejenti okwelapha, ama-accelerator, njll.

Indlela yokukhiqiza:

Lo mkhiqizo uwumkhiqizo ohlangene we-ethylenediamine, i-diethylenetriamine, i-triethylenetetramine, ne-polyethylenepolyamine. Ngezimiso zokukhiqiza nokusebenza, sicela ubheke i-ethylenediamine. Kodwa-ke, izinga lokushisa lokusabela kwe-ammonolysis lidinga ukuthi libe ngu-160 kuya ku-250°C, futhi ingcindezi kufanele ibe ngaphezu kuka-4.0MPa. Gcoba umkhiqizo we-polyamine ongahluziwe ngaphansi kwengcindezi encishisiwe, qoqa izingxenyana ku-160-210°C ngaphansi kwengcindezi engu-1.3kPa, bese uthola umkhiqizo oqediwe I-Chemicalbook ye-tetraethylpentamine ngemva kokupholisa. Indlela yokucwenga: Dehydrate nge-metallic sodium noma i-anhydrous calcium sulfate bese uhlukaniseka ngaphansi kwengcindezi encishisiwe. Ungaphinda uncibilikise u-150g we-tetraethylenepentamine ku-300mL we-ethanol engu-95%, futhi kancane kancane wehle ku-180mL we-hydrochloric acid egxilile ngenkathi upholisa, ugcine izinga lokushisa lingaphansi kuka-20°C. Hlunga imvula emhlophe, uyikristale kabusha kathathu ngengxube ye-ethanol namanzi, geza nge-ether, bese womisa ngaphansi kwe-vacuum ukuze uthole i-tetraethylenepentamine hydrochloride ehlanzekile.

imvelo

Inombolo ye-CAS 112-57-2

Ifomula yemolekyuli C8H23N5

Isisindo se-molecule 189.3

I-EINECS No. 203-986-2

Iphuzu lokuncibilika -40°C (lit.)

Iphuzu lokubilisa elingu-340°C

Ukuminyana 0.998g/mL ku-25°C (lit.)

Ukuminyana komhwamuko 6.53 (vsair)

Inkomba ye-Refractive n20/D1.505 (ekhanyayo.)

Iphoyinti le-Flash 365°F

Izimo zesitoreji Isitolo ngaphansi kuka+30°

Ulwazi lokuxhumana

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