labarai

Dimethylformamide (taƙaice DMF), wanda kuma aka sani da N, N-dimethylformamide, shine dimethyl madadin foramide, kuma duka ƙungiyoyin methyl suna kan N (nitrogen) atoms, don haka suna. A matsayin wani muhimmin sinadari mai mahimmanci da ingantaccen ƙarfi, DMF ana amfani dashi sosai a cikin polyurethane, acrylic, additives abinci, magani, magungunan kashe qwari, dyes, lantarki da sauran masana'antu.

DMF ruwa ne mara launi kuma mai haske tare da babban wurin tafasa, ƙarancin daskarewa, ingantaccen sinadarai da kwanciyar hankali, kuma yana da mizanin ruwa da mafi yawan kaushi. Yana da sauran ƙarfi da aka saba amfani da shi don halayen sinadaran kuma ana kiransa "ƙaunar duniya": Ana amfani da DMF A acrylic fiber samar da busassun kadi tsari na ƙarfi-tushen acrylic fiber yana da halaye na mai kyau hydrophobicity, karfi rufe ikon, taushi texture, da kuma karfi hannun ji; a cikin samar da rigar polyester roba fata, DMF za a iya amfani da a matsayin wanka da kuma magani wakili ga polyurethane guduro. Ana amfani da shi don shafa kayan aiki daban-daban, kuma lokacin da aka yi amfani da shi don rini na fata, zai iya yin launi na fata da kuma rashin dusashewa; saboda ƙarfin narkarwarsa mai ƙarfi, ana amfani da DMF azaman mai narkewa a cikin rini kuma ana amfani dashi don rini zaruruwan roba, wanda zai iya inganta daidaiton fata. Abubuwan rini; a matsayin zaɓaɓɓen sauran ƙarfi da aka yi amfani da su a cikin tafiyar matakai, DMF za a iya amfani da shi don zaɓin sha na daban-daban hydrocarbons da inorganic gas. Misali, ana amfani da DMF don wanke ethylene don cire acetylene, don haka ana tsarkake ethylene. Hakanan za'a iya amfani da DMF don cire isoprene, piperylene, da dai sauransu daga iskar gas na samar da tsire-tsire na ethylene don haɗuwa da resin unsaturated; Hakanan za'a iya amfani da DMF azaman zaɓaɓɓen kaushi don hanyoyin hakowa a fagen sarrafa man fetur. Alal misali: a cikin tsarin polycarboxylic acid wanda ke da irin wannan kaddarorin kuma yana da wuya a rabu, kamar isophthalic acid da terephthalic acid, ana iya raba su cikin sauƙi ta hanyar cirewar DMF ko recrystallization na mataki-mataki.

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A cikin halayen kwayoyin halitta, dimethylformamide ba wai kawai ana amfani da shi azaman mai narkewa ba, har ma da mahimmancin tsaka-tsaki a cikin haɗin kwayoyin halitta. A cikin masana'antar harhada magunguna, a matsayin tsaka-tsakin magungunan roba, ana amfani da shi sosai wajen samar da magungunan doxycycline, cortisone, da sulfonamide; a cikin masana'antar magungunan kashe qwari, ana amfani da shi don haɗa magunguna masu inganci da ƙarancin guba da magungunan kashe kwari.

A matsayin matsakaiciyar amsawa don haɗakar sinadarai, DMF za a iya amfani da ita azaman ƙauyen crystallization don tsarkakewa na magunguna. A cikin masana'antar lantarki, ana iya amfani da shi don daidaita danko na wakili mai warkarwa don laminates na jan karfe. Hakanan za'a iya amfani da DMF azaman mai ƙarfi mai ɗaukar hoto don samar da kristal polymeric tare da BF3 (boron trifluoride), yin BF3 ya canza daga iskar gas zuwa mai ƙarfi da sauƙin ɗauka. A matsayin polar (hydrophilic) aprotic sauran ƙarfi tare da babban wurin tafasa, yana iya haɓaka tsarin maye gurbin bimolecular nucleophilic (SN₂). Bugu da ƙari, dimethylformamide yana da tasiri mai tasiri a cikin hydrogenation, dehydrogenation, dehydrogenation da dehydrohalogenation halayen, wanda ya rage yawan zafin jiki da kuma inganta samfurin tsabta.

Da alama DMF ya cancanci taken "ƙaunar duniya". Wannan iri-iri na amfani zai yi wahala a zarce cikin ɗan gajeren lokaci.

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Lokacin aikawa: Mayu-17-2024