Kaihanga Utu Pai N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
whakaahuatanga
Ko te ingoa i ahu mai i te meka ko te whakakapinga dimethyl o formamide (amide of formic acid), a ko nga roopu methyl e rua kei runga i te ngota N (hauota).Ko te N,N-DIMETHYLFORMAMID he whakarewa aprotic polar (hydrophilic), ka taea e Chemicalbook te whakatairanga i te tikanga tauhohenga SN2.N,N-DIMETHYLFORMAMID ka hangaia ma te whakamahi i te waikawa formic me te dimethylamine.Ko te N,N-DIMETHYLFORMAMID kei te kore e mau (ina koa i te pāmahana teitei) i te aroaro o nga turanga kaha penei i te konutai waikawa, i nga waikawa kaha ranei penei i te waikawa maaota, te waikawa pungatara ranei, me te whakamaarama ki te waikawa formic me te dimethylamine.He tino pumau ki te hau me te wera ki te koropupu.Ina teitei ake te pāmahana i te 350 ℃, ka ngaro te wai ka puta te waro monoxide me te dimethylamine.Ko te N,N-DIMETHYLFORMAMID he whakarewa aprotic polar pai, ka taea te whakakore i te nuinga o nga matū pararopi me nga matū pararopi, ka uru ki te wai, te waipiro, te ethers, te aldehydes, te ketones, te hākawa, te hauwai hauwai me te hauwai kakara, etc.Ko te mutunga o te ngota ngota N,N-DIMETHYLFORMAMID e karapotia ana e nga roopu methyl, e hanga ana i te aukati, kia kore e taea e nga katote kino te whakatata, engari ko nga katote pai anake e hono ana.Ko te anion tahanga he kaha ake i te anion kua whakarewahia.He maha nga tauhohenga katote he ngawari ake te whakahaere i roto i te N,N-DIMETHYLFORMAMID atu i nga whakarewa porotiki whanui, hei tauira, ko te tauhohenga o nga warowaihā me te hauwai hauhau i roto i te N,N-DIMETHYLFORMAMID i te pāmahana rūma, ka taea te whakaputa i nga hākawa hua nui, ina koa mo te te whakahiatotanga o nga hākawa kua aukatia.
Synthesis.Synonyms
amida,n,n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORCemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREAGENT;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Nga tono mo DMF
Ko te DMF he whakarewa pai mo nga momo polymers teitei penei i te polyethylene, te polyvinyl chloride, te polyacrylonitrile, te polyamide, me etahi atu, ka taea te whakamahi mo te miro maku o nga muka waihanga penei i nga muka polyacrylonitrile, me te whakahiato o te polyurethane;Ka whakamahia mo te hanga kiriata kirihou;ka taea hoki te whakamahi hei peera peita mo te tango peita;ka taea hoki e ia te whakakore i etahi poaka iti-wairewa, kia whai hua ai nga waikano ki nga waikano.Ka whakamahia te DMF mo te tangohanga kakara me te wehenga me te whakaora i te butadiene mai i nga hautau C4 me te isoprene mai i nga hautau C5, a ka taea hoki te whakamahi hei reagent whai hua mo te wehenga o nga waahanga kore-waiwai mai i te paraffin.He pai te whiriwhiri mo te whakarewatanga o te waikawa isophthalic me te waikawa terephthalic: ko te waikawa isophthalic he nui ake te whakarewa i roto i te DMF atu i te waikawa terephthalic, te tangohanga whakarewa, te Tiopapatanga wahanga ranei, ka taea te wehe i nga mea e rua.I roto i te ahumahi petrochemical, ka taea te whakamahi i te DMF hei whakangao hau hei wehe me te whakamahine i nga hau.Hei kaihoko rongoa mo te horoi Chemicalbook i roto i te umanga polyurethane, ka whakamahia te nuinga ki te hanga hiako hiako maaku;hei whakarewa i roto i te ahumahi muka kiriaku, te nuinga whakamahia te reira i roto i te hanga miro maroke o te muka kiriaku;i roto i te ahumahi hiko hei tinei i nga waahanga tine-whakakikoruatia me nga papa taiawhio Ko etahi atu ahumahi kei roto ko nga kaikawe o nga hau kino, nga whakarewa mo te whakamaaramatanga o te tarukino, te whakapiri, me etahi atu. he takawaenga nui ki te whakahiato waro.I roto i te ahumahi pesticide, ka taea te whakamahi ki te whakaputa ciprofloxacin;i roto i te ahumahi rongoora, ka taea te whakamahi ki te whakahiato iodine, doxycycline, cortisone, huaora B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, waikawa hemostatic, bepartame,vita, bepartame. chlorpheniramine, sulfonamides Production.DMF he pānga catalytic i roto i te tauhohenga o te hauwai, dehydrogenation, dehydration me te dehydrohalogenation, kia heke te pāmahana tauhohenga me te whakapai ake te purenga hua.
1. He tino pai te whakarewa pararopi, whakamahia hei whakarewa mo te polyurethane, te polyacrylonitrile, me te polyvinyl chloride, ka whakamahia ano hoki hei tangohanga, hei rauemi mata mo nga rongoa me nga pesticides.
2. Ka whakamahia hei reagent tātari me te whakarewa mo te kapia vinyl me te acetylene
3. Ehara i te mea he rauemi mata matū me te maha o nga whakamahinga, engari he whakarewa pai me te maha o nga whakamahinga.Ko te DMF he whakarewa pai mo nga momo polymers teitei penei i te polyethylene, te polyvinyl chloride, te polyacrylonitrile, te polyamide, me etahi atu, ka taea te whakamahi mo te miro maku o nga muka waihanga penei i nga muka polyacrylonitrile, me te whakahiato o te polyurethane;Ka whakamahia mo te hanga kiriata kirihou;ka taea hoki te whakamahi hei peera peita mo te tango peita;ka taea hoki e ia te whakakore i etahi poaka iti-wairewa, kia whai hua ai nga waikano ki nga waikano.Ka whakamahia te DMF mo te tangohanga kakara me te wehenga me te whakaora i te butadiene mai i nga hautau C4 me te isoprene mai i nga hautau C5, a ka taea hoki te whakamahi hei reagent whai hua mo te wehenga o nga waahanga kore-waiwai mai i te paraffin.He pai te whiriwhiri mo te whakarewatanga o te waikawa isophthalic me te waikawa terephthalic: he nui ake te wairewa o te waikawa isophthalic i roto i te DMF atu i te waikawa terephthalic, ka mahia te tangohanga whakarewa i roto i te dimethyl chemicalbook acid formamide He wahanga tioata ranei, ka taea te wehe te rua.I roto i te ahumahi petrochemical, ka taea te whakamahi i te DMF hei whakangao hau hei wehe me te whakamahine i nga hau.I roto i nga tauhohenga waro, ehara i te mea ka whakamahia noa te DMF hei whakarewa mo te tauhohenga, engari he takawaenga nui ano hoki mo te whakahiato waro.I roto i te ahumahi pesticide, ka taea te whakamahi ki te whakaputa ciprofloxacin;i roto i te ahumahi rongoā, ka taea te whakamahi ki te whakahiato iodine, doxycycline, cortisone, huaora B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen pua nani, Bian nitrogen pua nani, cyclohexyl nitrosourea, furoflurouracil, hemomestatic, megestrola beparta , bilevitamin, chlorpheniramine, me etahi atu. Ko te DMF he painga whakahiato i roto i nga tauhohenga o te hauwai, te whakaheke, te whakamaroketanga me te dehydrohalogenation, kia heke iho ai te pāmahana tauhohenga me te pai ake o te maatanga o te hua.
4. Te whakarewa titration kore-wai.Te whakarewa mo te vinyl me te acetylene.Te whakatau whakaahua.Ko te wairewa chromatographic hau (te teitei o te pāmahana whakahaere 50 ℃, te whakarewa he mewaro), te wehenga Puka matū tātaritanga C2 ~ C5 waiwaro, ka taea te wehe noa, isobutene me cis, trans-2-butene.Te tātari toenga pesticide.Te Whakakotahitanga Organic.Te whakahiato peptide.Mo te ahumahi whakaahua.
Ko nga waahanga mo te DMF
| Pūhui | Whakatakotoranga |
| Te ahua | marama |
| Whānui | ≥99.9% |
| Mewaro | ≤0.001% |
| Tae (PT-CO), Hazen | ≤5 |
| Wai,% | ≤0.05% |
| Te rino, mg/kg | ≤0.05 |
| Waikawa(HCOOH) | ≤0.001% |
| Taketake (DMA) | ≤0.001% |
| PH(25 ℃, 20% wai) | 6.5-8.0 |
| Te kawe (25 ℃, 20% wai), μs/cm | ≤2 |
Ko te roopu hokohoko o nga DMF
190kg/pahū
Ko te rokiroki me noho ki te hauhautanga, maroke me te hau.
