Umenzi wexabiso eliLungileyo N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
inkcazelo
Igama livela kwinto yokuba yi-dimethyl substitution ye-formamide (i-amide ye-asidi ye-formic), kwaye omabini amaqela e-methyl abekwe kwi-atom ye-N (nitrogen). I-N, N-DIMETHYLFORMAMID i-polar ephezulu ebilayo (i-hydrophilic) i-aprotic solvent, kunye ne-Chemicalbook inokukhuthaza indlela yokusabela kwe-SN2. I-N, N-DIMETHYLFORMAMID iveliswa kusetyenziswa i-asidi ye-formic kunye ne-dimethylamine. I-N, i-N-DIMETHYLFORMAMID ayizinzile (ingakumbi kwiqondo lokushisa eliphezulu) phambi kweziseko ezinamandla ezifana ne-sodium hydroxide okanye i-acids eqinile njenge-hydrochloric acid okanye i-sulfuric acid, kunye ne-hydrolyzes kwi-formic acid kunye ne-dimethylamine. Izinzile kakhulu emoyeni kwaye xa ifudunyezwa ukubilisa. Xa iqondo lobushushu lingaphezulu kwe-350 ℃, liyakulahlekelwa ngamanzi kwaye livelise i-carbon monoxide kunye ne-dimethylamine. I-N, N-DIMETHYLFORMAMID i-aprotic polar solvent enhle, ekwazi ukunyibilikisa izinto ezininzi eziphilayo kunye ne-inorganic, kwaye ixutywe ngamanzi, i-alcohol, i-ethers, i-aldehydes, i-ketones, i-esters, i-halogenated hydrocarbons kunye ne-hydrocarbons enuka kamnandi, njl. Isiphelo esichajiwe kakuhle se-molecule ye-N, N-DIMETHYLFORMAMID ijikelezwe ngamaqela e-methyl, okwenza isithintelo se-steric, ukwenzela ukuba i-ion engathandekiyo ingakwazi ukusondela, kodwa kuphela ii-ion ezilungileyo zidibene. I-anion ehamba ze iyasebenza kakhulu kune-anion esonjululweyo. Iimpendulo ezininzi ze-ionic zenziwa ngokulula ngakumbi kwi-N,N-DIMETHYLFORMAMID kunezinyibilikisi eziqhelekileyo zeprotic, umzekelo, ukusabela kwee-carboxylates ezine-halogenated hydrocarbons kwi-N,N-DIMETHYLFORMAMID kwiqondo lobushushu begumbi, kunokuvelisa ii-esters ezinesivuno esikhulu, ngakumbi ezilungele ukuhlanganiswa kwee-esters ezithintelwe ngokungqongqo.
Unxulumano.Izithethantonye
iamide,n,n-dimethyl-formicaci; iDimethylamidkyselinymravenci; i-dimethylamidkyselinymravenci; N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE; NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML; N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREAGENT; N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Usetyenziso lwe-DMF
I-DMF i-solvent efanelekileyo kwiindidi ze-polymers eziphezulu ezifana ne-polyethylene, i-polyvinyl chloride, i-polyacrylonitrile, i-polyamide, njl. Isetyenziselwa ukwenza ifilimu yeplastiki; inokusetyenziswa kwakhona njengepeyinti yokususa ipeyinti; inokunyibilikisa ezinye ii-pigments ezi-low-solubility, ukuze ii-pigments zibe neempawu zedayi. I-DMF isetyenziselwa ukutsalwa okuvumba kunye nokwahlula kunye nokubuyiswa kwe-butadiene kwiinqununu ze-C4 kunye ne-isoprene ukusuka kumaqhezu e-C5, kwaye ingasetyenziselwa njenge-reagent esebenzayo yokwahlula amacandelo angenayo i-hydrocarbon kwiparafini. Inokhetho oluhle lokunyibilika kwe-isophthalic acid kunye ne-terephthalic acid: i-asidi ye-isophthalic i-soluble ngakumbi kwi-DMF kune-terephthalic acid, i-solvent extraction okanye i-crystallization eyingxenye, ezi zimbini zinokuhlukana. Kwishishini le-petrochemical, i-DMF ingasetyenziselwa ukufunxa igesi ukwahlula kunye nokucokisa iigesi. Njengearhente yokunyanga ukuhlamba i-Chemicalbook kwishishini le-polyurethane, isetyenziswa ikakhulu kwimveliso yesikhumba esimanzi sokwenziwa; njengesinyibilikisi kushishino lwefiber ye-acrylic, isetyenziswa ikakhulu kwimveliso eyomileyo yokusonta yefiber ye-acrylic; kushishino lwe-elektroniki njengokucinywa kwamalungu e-tin-plated kunye neebhodi zesekethe Amanye amashishini abandakanya abathwali beegesi eziyingozi, izinyibilikisi zecrystallization yeziyobisi, i-adhesives, njl. Kwiimpendulo ze-organic, i-DMF ayisetyenziswanga ngokubanzi njenge-solvent ye-reaction, kodwa i-intermediate ebalulekileyo kwi-organic synthesis. Kwishishini le-pesticide, ingasetyenziselwa ukuvelisa i-ciprofloxacin; kwishishini lamachiza, ingasetyenziselwa ukwenza iodine, doxycycline, cortisone, vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurourastatic, megesic acid, bepart hepatron chlorpheniramine, sulfonamides Ukuveliswa. I-DMF inempembelelo ye-catalytic kwiimpendulo ze-hydrogenation, i-dehydrogenation, i-dehydration kunye ne-dehydrohalogenation, ukuze ubushushu bokusabela buthotywe kwaye ubunyulu bemveliso buphuculwe.
1. Yinto egqwesileyo ye-organic solvent, esetyenziswa njenge-solvent ye-polyurethane, i-polyacrylonitrile, kunye ne-polyvinyl chloride, kwaye isetyenziswe njenge-extractant, njengento ekrwada yamayeza kunye ne-pesticides.
2. Isetyenziswe njenge-reagent yokuhlalutya kunye ne-solvent ye-vinyl resin kunye ne-acetylene
3. Akuyona nje i-chemical raw material enoluhlu olubanzi lokusetyenziswa, kodwa kunye ne-solvent egqwesileyo enoluhlu olubanzi lokusetyenziswa. I-DMF i-solvent efanelekileyo kwiindidi ze-polymers eziphezulu ezifana ne-polyethylene, i-polyvinyl chloride, i-polyacrylonitrile, i-polyamide, njl. Isetyenziselwa ukwenza ifilimu yeplastiki; inokusetyenziswa kwakhona njengepeyinti yokususa ipeyinti; inokunyibilikisa ezinye ii-pigments ezi-low-solubility, ukuze ii-pigments zibe neempawu zedayi. I-DMF isetyenziselwa ukutsalwa okuvumba kunye nokwahlula kunye nokubuyiswa kwe-butadiene kwiinqununu ze-C4 kunye ne-isoprene ukusuka kumaqhezu e-C5, kwaye ingasetyenziselwa njenge-reagent esebenzayo yokwahlula amacandelo angenayo i-hydrocarbon kwiparafini. Inokukhethwa okulungileyo kwe-solubility ye-isophthalic acid kunye ne-terephthalic acid: i-isophthalic acid i-soluble ngakumbi kwi-DMF kune-asidi ye-terephthalic, i-solvent extraction iqhutyelwa kwi-dimethyl chemicalbook acid formamide Okanye i-crystallized, ezi zimbini zinokuhlukana. Kwishishini le-petrochemical, i-DMF ingasetyenziselwa ukufunxa igesi ukwahlula kunye nokucokisa iigesi. Ekuphenduleni kwezinto eziphilayo, i-DMF ayisetyenziswanga nje ngokubanzi njenge-solvent ye-reaction, kodwa iyindawo ebalulekileyo ephakathi kwi-organic synthesis. Kwishishini le-pesticide, ingasetyenziselwa ukuvelisa i-ciprofloxacin; kwishishini lamachiza, ingasetyenziselwa ukwenza iodine, doxycycline, cortisone, vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen mustard, Bian nitrogen mustard, cyclohexyl nitrosourea, cyclohexyl nitrosourea, furopartastatic hetamine, bile I-chlorpheniramine, njl njl. I-DMF inempembelelo ye-catalytic kwiimpendulo ze-hydrogenation, i-dehydrogenation, i-dehydration kunye ne-dehydrohalogenation, ukwenzela ukuba ubushushu bokusabela buthotywe kwaye ubunyulu bemveliso buphuculwe.
4. Isinyibilikisi se-titration esingenamanzi. I-solvent ye-vinyl kunye ne-acetylene. Ukuzimisela kweFotometric. Isisombululo segesi sechromatographic (ubushushu obuninzi bokusebenza 50 ℃, i-solvent yi-methanol), ukwahlukana Uhlalutyo lwe-Chemicalbook C2 ~ C5 i-hydrocarbons, kwaye inokwahlula eziqhelekileyo, i-isobutene kunye ne-cis, i-trans-2-butene. Uhlalutyo lwentsalela ye-pesticide. I-Organic Synthesis. I-Peptide synthesis. Kushishino lweefoto.
Inkcazo yeDMF
| Umdibaniso | Inkcazo |
| Imbonakalo | icacile |
| Ngokubanzi | ≥99.9% |
| IMethanol | ≤0.001% |
| Umbala (PT-CO),Hazen | ≤5 |
| Amanzi,% | ≤0.05% |
| Intsimbi, mg/kg | ≤0.05 |
| Ubumuncu(HCOOH) | ≤0.001% |
| Okusisiseko (DMA) | ≤0.001% |
| PH(25℃, 20% emanzini) | 6.5-8.0 |
| I-Conductivity(25℃, 20% enamanzi),μs/cm | ≤2 |
Ukupakishwa kweDMF
190kg/igubu
Ukugcinwa kufuneka kube kwindawo epholileyo, yomile kwaye ivule umoya.
