Tufuga Tau Lelei N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
fa'amatalaga
O le igoa e sau mai le mea moni o le sui o le dimethyl o le formamide (amide of formic acid), ma o vaega uma e lua o methyl o loʻo i luga o le N (nitrogen) atom.N, N-DIMETHYLFORMAMID o se vaifofo aprotic polar (hydrophilic) maualuga-pupuna, ma Chemicalbook e mafai ona faalauiloaina le SN2 faiga tali.N,N-DIMETHYLFORMAMID e gaosia e fa'aaoga ai le fomic acid ma le dimethylamine.N,N-DIMETHYLFORMAMID e le mautu (aemaise i le maualuga o le vevela) pe a iai ni fa'avae malolosi e pei o le sodium hydroxide po'o ni mea malosi e pei o le hydrochloric acid po'o le sulfuric acid, ma fa'asusu i le formic acid ma le dimethylamine.E matua mautu i le ea ma pe a faʻavevela seia vela.A maualuga le vevela nai lo le 350 ℃, o le a leiloa le vai ma maua ai le carbon monoxide ma le dimethylamine.N, N-DIMETHYLFORMAMID o se mea lelei aprotic polar solvent, lea e mafai ona faʻamavaeina le tele o mea faʻapitoa ma mea faʻapitoa, ma faʻafefiloi i vai, ava malosi, ethers, aldehydes, ketones, esters, halogenated hydrocarbons ma aromatic hydrocarbons, ma isi.O le faʻaiʻuga lelei o le N,N-DIMETHYLFORMAMID mole o loʻo siʻomia e vaega methyl, e fai ai se faʻalavelave faʻafefe, ina ia le mafai ona faʻalatalata atu ion leaga, ae naʻo ion lelei e fesoʻotaʻi.O le anion le lavalavā e sili atu le malosi nai lo le anion solvated.O le tele o gaioiga faʻaona e sili atu ona faigofie ona faia i le N, N-DIMETHYLFORMAMID nai lo soʻo faʻapolopolo lautele, mo se faʻataʻitaʻiga, o le tali atu o carboxylates ma halogenated hydrocarbons i N, N-DIMETHYLFORMAMID i le vevela o le potu, e mafai ona gaosia esters maualuga, aemaise lava mo o le tuufaatasia o esters ua taofia.
Synthesis.Sinonyms
amide,n,n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORCemikalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREAGENT;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Talosaga a DMF
O le DMF o se solvent lelei mo le tele o polymers maualuga e pei o le polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ma isi, ma e mafai ona faʻaaogaina mo le susu susu o filo faʻapipiʻi e pei o filo polyacrylonitrile, ma le faʻaogaina o le polyurethane;E faʻaaogaina mo le faia o ata palasitika;e mafai fo'i ona fa'aoga e fai ma se ta'e vali e aveese ai le vali;e mafai foʻi ona faʻamaʻapeina nisi pigments maualalo-solubility, ina ia i ai i le pigments uiga o vali.O le DMF o loʻo faʻaaogaina mo le faʻaaogaina o mea manogi ma le vavaeeseina ma le toe faʻaleleia o le butadiene mai vaega ninii C4 ma isoprene mai vaega ninii C5, ma e mafai foi ona faʻaaogaina e avea o se reagent aoga mo le vavaeeseina o vaega e le o le hydrocarbon mai paraffin.E i ai se filifiliga lelei mo le solubility o le isophthalic acid ma terephthalic acid: isophthalic acid e sili atu ona soluble i le DMF nai lo terephthalic acid, solvent extraction po'o vaega Crystallization, e mafai ona vavaeeseina le lua.I totonu o fale gaosi oloa, DMF e mafai ona faʻaaogaina e avea o se kesi e faʻafefe e vavae ma faʻamamaina kesi.I le avea ai o se vailaʻau faʻamalolo mo le fufuluina o Chemicalbook i le alamanuia polyurethane, e masani ona faʻaaogaina i le gaosiga o paʻu susu susu;e pei o se solvent i le alamanuia alava acrylic, e masani lava ona faaaogaina i le gaosiga mago milo o alava acrylic;i totonu o le alamanuia faaeletonika e pei o se tinei vaega apa ma laupapa matagaluega isi alamanuia e aofia ai ave o kasa matautia, solvents mo crystallization fualaau faasaina, adhesives, ma isi. I organic reactions, DMF e le gata o le faaaogaina lautele o se solvent mo le tali, ae ose vaega taua foi i le tuufaatasia o meaola.I totonu o fale gaosi oloa, e mafai ona faʻaaogaina e gaosia ai le ciprofloxacin;i le falemaʻi vailaʻau, e mafai ona faʻaaogaina e faʻapipiʻi ai iodine, doxycycline, cortisone, vitamini B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame,vita, bepartame,vita. chlorpheniramine, sulfonamides Gaosiga.DMF ei ai se aafiaga catalytic i tali o le hydrogenation, dehydrogenation, dehydration ma dehydrohalogenation, ina ia faaitiitia le vevela o le tali ma faaleleia le mama o oloa.
1. O se solvent organic sili ona lelei, faʻaaogaina e avea o se solvent mo polyurethane, polyacrylonitrile, ma polyvinyl chloride, ma faʻaaogaina foi e avea o se mea e faʻaaogaina, e avea o se mea mataʻutia mo vailaʻau ma vailaau faʻasaina.
2. Faʻaaogaina e fai ma suʻesuʻega suʻesuʻe ma solvent mo vinyl resin ma acetylene
3. E le gata o se vailaʻau mataʻutia ma le tele o faʻaoga, ae o se solvent sili ona lelei ma le tele o faʻaoga.O le DMF o se solvent lelei mo le tele o polymers maualuga e pei o le polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ma isi, ma e mafai ona faʻaaogaina mo le susu susu o filo faʻapipiʻi e pei o filo polyacrylonitrile, ma le faʻaogaina o le polyurethane;E faʻaaogaina mo le faia o ata palasitika;e mafai fo'i ona fa'aoga e fai ma se ta'e vali e aveese ai le vali;e mafai foʻi ona faʻamaʻapeina nisi pigments maualalo-solubility, ina ia i ai i le pigments uiga o vali.O le DMF o loʻo faʻaaogaina mo le faʻaaogaina o mea manogi ma le vavaeeseina ma le toe faʻaleleia o le butadiene mai vaega ninii C4 ma isoprene mai vaega ninii C5, ma e mafai foi ona faʻaaogaina e avea o se reagent aoga mo le vavaeeseina o vaega e le o le hydrocarbon mai paraffin.E i ai se filifiliga lelei mo le solubility o le isophthalic acid ma terephthalic acid: isophthalic acid e sili atu ona soluble i DMF nai lo terephthalic acid, solvent extraction o loʻo faia i le dimethyl chemicalbook acid formamide Poʻo se vaega tioata, e mafai ona vavaeeseina le lua.I totonu o fale gaosi oloa, DMF e mafai ona faʻaaogaina e avea o se kesi e faʻafefe e vavae ma faʻamamaina kesi.I gaioiga faʻaola, DMF e le gata e faʻaaogaina lautele e avea o se solvent mo le tali, ae o se mea taua tele i le faʻaogaina o meaola.I totonu o fale gaosi oloa, e mafai ona faʻaaogaina e gaosia ai le ciprofloxacin;i le fale talavai, e mafai ona faʻaaogaina e faʻapipiʻi ai iodine, doxycycline, cortisone, vitamini B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen sinapi, Bian nitrogen sinapi, cyclohexyl nitrosourea, furoflurouracil, hemomestatic acid, megestrola beparta , bilevitamin, chlorpheniramine, ma isi DMF ei ai se aafiaga catalytic i le tali atu o le hydrogenation, dehydrogenation, dehydration ma dehydrohalogenation, ina ia faaitiitia le vevela o le tali ma faaleleia le mama o oloa.
4. Soli titration non-vai.Solvent mo vinyl ma acetylene.Fuafuaga photometric.Kesi chromatographic vaifofo tumau (maualuga o faagaoioia vevela 50 ℃, solvent o le methanol), tuueseeseina Chemicalbook suesuega C2 ~ C5 hydrocarbons, ma e mafai ona tuueseeseina masani, isobutene ma cis, trans-2-butene.Su'esu'ega o toega o manu faalafua.Fa'asoa fa'aletino.Fa'asologa o le peptide.Mo le fale pueata.
Faʻamatalaga o le DMF
Fa'afefiloi | Fa'amatalaga |
Fa'aaliga | manino |
lautele | ≥99.9% |
Methanol | ≤0.001% |
Lanu (PT-CO), Haseni | ≤5 |
Vai,% | ≤0.05% |
Uamea, mg/kg | ≤0.05 |
Acidity(HCOOH) | ≤0.001% |
Fa'avae (DMA) | ≤0.001% |
PH(25℃, 20% vai) | 6.5-8.0 |
Conductivity(25℃, 20% aqueous),μs/cm | ≤2 |
Faʻapipiʻiina o le DMF
190kg/papa
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