Moetsi Theko e Ntle N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
tlhaloso
Lebitso lena le tsoa tabeng ea hore ke dimethyl substitution ea formamide (amide ea formic acid), 'me lihlopha tse peli tsa methyl li fumaneha ho athomo ea N (nitrogen).N,N-DIMETHYLFORMAMID ke motsoako oa aprotic oa polar (hydrophilic) o belang haholo, 'me Chemicalbook e ka khothaletsa mochine oa ho arabela oa SN2.N,N-DIMETHYLFORMAMID e hlahiswa ho sebediswa formic acid le dimethylamine.N, N-DIMETHYLFORMAMID ha e tsitsa (haholo-holo mocheso o phahameng) ka pel'a metheo e matla e kang sodium hydroxide kapa li-acid tse matla tse kang hydrochloric acid kapa sulfuric acid, le hydrolyzes ho formic acid le dimethylamine.E tsitsitse haholo moeeng 'me ha e futhumala ho fihlela e bela.Ha mocheso o feta 350 ℃, o tla lahleheloa ke metsi mme o hlahise carbon monoxide le dimethylamine.N,N-DIMETHYLFORMAMID ke motsoako o motle oa aprotic polar, o ka qhalang lintho tse ngata tse phelang le tse sa tsitsang, 'me o kopanya le metsi, li-alcohol, ethers, aldehydes, ketones, esters, halogenated hydrocarbons le li-hydrocarbon tse nkhang hamonate, joalo-joalo.Qetello e ntle ea molek'hule ea N, N-DIMETHYLFORMAMID e pota-potiloe ke lihlopha tsa methyl, tse etsang tšitiso ea steric, e le hore li-ion tse mpe li se ke tsa atamela, empa ke li-ion tse ntle feela tse amanang.Anion e hlobotseng e sebetsa haholo ho feta anion e qhibilihisitsoeng.Liphetoho tse ngata tsa ionic li etsoa habonolo ho N,N-DIMETHYLFORMAMID ho feta ka li-solvents tsa protic ka kakaretso, mohlala, karabelo ea carboxylate e nang le halogenated hydrocarbons ho N,N-DIMETHYLFORMAMID ka mocheso oa kamore, e ka hlahisa li-ester tse fanang ka chai e ngata, haholo-holo tse loketseng tlhaho ea li-ester tse thibetsoeng ka thata.
Synthesis.Mahlalosang
amide,n,n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREAGENT;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Likopo tsa DMF
DMF ke solvent e ntle bakeng sa mefuta e fapaneng ea li-polymers tse phahameng tse kang polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, joalo-joalo, 'me e ka sebelisoa bakeng sa ho ohla ka metsi a likhoele tsa maiketsetso tse kang polyacrylonitrile fibers, le synthesis ea polyurethane;E sebelisetsoa ho etsa filimi ea polasetiki;e ka boela ea sebelisoa e le sesepa sa pente bakeng sa ho tlosa pente;e ka boela ea qhibilihisa li-pigment tse ling tse sa qhibiliheng ka tlaase, e le hore mebala e be le litšobotsi tsa lidae.DMF e sebelisetsoa ho ntša monko o monate le karohano le ho hlaphoheloa ha butadiene ho tloha likarolong tsa C4 le isoprene ho tloha likarolong tsa C5, hape e ka sebelisoa e le reagent e sebetsang bakeng sa ho arohana ha likarolo tse se nang hydrocarbon ho tloha parafine .E na le selectivity e ntle bakeng sa solubility ea asiti ea isophthalic le terephthalic acid: asiti ea isophthalic e qhibiliha ho feta DMF ho feta terephthalic acid, solvent extract kapa partial Crystallization, tse peli li ka aroloa.Indastering ea petrochemical, DMF e ka sebelisoa e le ntho e monyang khase ho arola le ho hloekisa likhase.E le moemeli oa ho alafa bakeng sa ho hlatsoa Chemicalbook indastering ea polyurethane, e sebelisoa haholo tlhahisong ea letlalo le metsi la maiketsetso;e le solvent indastering ea fiber ea acrylic, e sebelisoa haholo tlhahisong e ommeng ea acrylic fiber;indastering ea elektronike e le ho tima likarolo tse entsoeng ka thini le liboto tsa potoloho Liindasteri tse ling li kenyelletsa bajari ba likhase tse kotsi, li-solvents bakeng sa crystallization ea lithethefatsi, li-adhesives, joalo-joalo. hape ke karolo ea bohlokoa lipakeng tsa organic synthesis.Ka indasteri ea chefo e bolaeang likokoanyana, e ka sebelisoa ho hlahisa ciprofloxacin;indastering ea litlhare, e ka sebelisoa ho kopanya iodine, doxycycline, cortisone, vithamine B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurourastatic, meges, bepart, bilemovitacil, chlorpheniramine, sulfonamides Tlhahiso.DMF e na le phello ea catalytic karabelong ea hydrogenation, dehydrogenation, dehydration le dehydrohalogenation, e le hore mocheso oa karabelo o theohe mme bohloeki ba sehlahisoa bo ntlafatsoe.
1. Ke motsoako o babatsehang oa motsoako, o sebelisoang e le mokelikeli oa polyurethane, polyacrylonitrile, le polyvinyl chloride, hape o sebelisoa e le motsoako, e le thepa e tala bakeng sa meriana le chefo e bolaeang likokoanyana.
2. E sebelisoa e le reagent ea analytical le solvent bakeng sa resin ea vinyl le acetylene
3. Hase feela lik'hemik'hale tse tala tse nang le mefuta e mengata ea tšebeliso, empa hape ke solvent e babatsehang e nang le mefuta e mengata ea tšebeliso.DMF ke solvent e ntle bakeng sa mefuta e fapaneng ea li-polymers tse phahameng tse kang polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, joalo-joalo, 'me e ka sebelisoa bakeng sa ho ohla ka metsi a likhoele tsa maiketsetso tse kang polyacrylonitrile fibers, le synthesis ea polyurethane;E sebelisetsoa ho etsa filimi ea polasetiki;e ka boela ea sebelisoa e le sesepa sa pente bakeng sa ho tlosa pente;e ka boela ea qhibilihisa li-pigment tse ling tse sa qhibiliheng ka tlaase, e le hore mebala e be le litšobotsi tsa lidae.DMF e sebelisetsoa ho ntša monko o monate le karohano le ho hlaphoheloa ha butadiene ho tloha likarolong tsa C4 le isoprene ho tloha likarolong tsa C5, hape e ka sebelisoa e le reagent e sebetsang bakeng sa ho arohana ha likarolo tse se nang hydrocarbon ho tloha parafine .E na le selectivity e ntle bakeng sa solubility ea asiti ea isophthalic le terephthalic acid: asiti ea isophthalic e qhibiliha ho feta DMF ho feta terephthalic acid, ho ntšoa ha solvent ho etsoa ka dimethyl chemicalbook acid formamide Kapa ka mokhoa o itseng oa crystallized, tse peli li ka aroloa.Indastering ea petrochemical, DMF e ka sebelisoa e le ntho e monyang khase ho arola le ho hloekisa likhase.Ka karabelo ea manyolo, DMF ha e sebelisoe haholo joalo ka solvent bakeng sa karabelo, empa hape ke karolo ea bohlokoa lipakeng tsa organic synthesis.Ka indasteri ea chefo e bolaeang likokoanyana, e ka sebelisoa ho hlahisa ciprofloxacin;indastering ea meriana, e ka sebelisoa ho kopanya iodine, doxycycline, cortisone, vithamine B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, mosetareta oa Methoxyfen, mosetareta oa Bian nitrogen, cyclohexyl nitrosourea, furopartastatic hemouraci, furopartrouraci acid, , bilevitamin, chlorpheniramine, joalo-joalo DMF e na le phello ea catalytic liketsong tsa hydrogenation, dehydrogenation, dehydration le dehydrohalogenation, e le hore mocheso oa karabelo o theohe le ho hloeka ha sehlahisoa ho ntlafatsoe.
4. Mokelikeli oa titration o se nang metsi.Solvent bakeng sa vinyl le acetylene.Boikemisetso ba Photometric.Tharollo ea khase ea chromatographic stationary (boholo ba mocheso o sebetsang ke 50 ℃, solvent ke methanol), karohano Tlhahlobo ea Chemicalbook C2 ~ C5 hydrocarbons, 'me e ka arola tse tloaelehileng, isobutene le cis, trans-2-butene.Tlhahlobo ea masala a chefo e bolaeang likokoanyana.Organic Synthesis.Peptide synthesis.Bakeng sa indasteri ea lifoto.
Tlhaloso ea DMF
| Motsoako | Tlhaloso |
| Ponahalo | hlakileng |
| Kakaretso | ≥99.9% |
| Methanol | ≤0.001% |
| Mmala (PT-CO),Hazen | ≤5 |
| Metsi,% | ≤0.05% |
| Aene, mg/kg | ≤0.05 |
| Asiti(HCOOH) | ≤0.001% |
| Basicity (DMA) | ≤0.001% |
| PH(25℃, 20% e nang le metsi) | 6.5-8.0 |
| Conductivity(25℃, 20% aqueous),μs/cm | ≤2 |
Ho paka ka DMF
190kg / moropa
Polokelo e lokela ho ba sebakeng se pholileng, se omeletseng le se nang le ventilate.
