N,N-dimethyl-1,3-propanediamine (wanda daga baya ake kira DMAPA) wani sinadari ne mai ƙarancin aliphatic diamine wanda ke da ƙungiyoyin amino na uku da na farko a cikin ƙwayar. Ruwa ne mara launi kuma mai haske tare da ƙamshin ammonia. Yana shan taba a cikin iska kuma yana narkewa a cikin ruwa da sinadarai masu narkewa na halitta. Tsarin ƙwayoyin halittarsa ​​shine C5H14N2 kuma tsarin tsarinsa shine (CH3)2NCH2CH2CH2NH2.
Yana ɗaya daga cikin muhimman nau'ikan mahaɗan amine masu kitse kuma muhimmin abu ne na kayan halitta. Ana amfani da shi sosai a cikin sinadarai na yau da kullun, magungunan kashe kwari, rini, resins, da sauransu. A halin yanzu, yawancin DMAPA a China ana amfani da su ne musamman don shirya betaine da amidopropyldimethylamine, waɗanda ake amfani da su a cikin kayayyakin sinadarai na yau da kullun kamar shamfu, gel na shawa, gel na shawa na jarirai, kwandishana, sabulun ruwa da sabulun wanki. Bugu da ƙari, ana amfani da DMAPA azaman mai haɓaka polyurethane, wakili mai warkar da resin epoxy da mai haɓaka aiki, da kuma wajen samar da rini.

Babban hanyar haɗa DMAPA ita ce: 1. Ana amfani da dimethylamine da acrylonitrile a matsayin kayan aiki, ana samun dimethylaminopropionitrile (DMAPN) ta hanyar ƙara Michael. A cikin tsarin shirya DMAPN na masana'antu, kusan kashi 2% na jimlar yawan kayan aiki galibi ana ƙara su a cikin ruwa don haɓaka amsawar ƙari da kuma cire dimethylamine da ya wuce kima ta hanyar azeotropic; 2. DMAPN da aka samu ta hanyar distillation a mataki na farko ana haɗa shi da hydrogen a ƙarƙashin yanayin matsin lamba mai yawa. Shiri na DMAPA

A mataki na biyu na hydrogenation don shirya DMAPA, za a sami wani sakamako na gefe. Abubuwan da suka rage daga wannan amsawar sune amine bis-DMAPA na biyu da kuma amine tri-DMAPA na uku. A halin yanzu, samar da DMAPA a cikin gida galibi yana ɗaukar amsawar kettle, kuma mai haɓaka hydrogenation shine foda Raney nickel. Domin hana samuwar wannan samfurin, ya zama dole a ƙara kashi 12%-16% na yawan causative na maganin ruwa na caustic alkali ko ammonia na ruwa, maganin ruwa na caustic alkali da ammonia na ruwa. Amfanin zai samar da ruwa mai yawa da ruwan sharar gida, wanda yake da wahalar raguwa da sarrafawa, yana ƙara nauyin bayan sarrafawa.

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