Theko e Ntle ea Moetsi N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
tlhaloso
Lebitso lena le tswa tabeng ya hore ke sebaka sa dimethyl sa formamide (amide ya formic acid), mme dihlopha ka bobedi tsa methyl di fumaneha hodima athomo ya N (naetrojene). N,N-DIMETHYLFORMAMID ke solvent ya polar e belang haholo (hydrophilic) aprotic, mme Chemicalbook e ka kgothaletsa mokgwa wa karabelo ya SN2. N,N-DIMETHYLFORMAMID e hlahiswa ho sebediswa formic acid le dimethylamine. N,N-DIMETHYLFORMAMID ha e tsitsa (haholoholo mochesong o phahameng) moo ho nang le metheo e matla jwalo ka sodium hydroxide kapa di-acid tse matla jwalo ka hydrochloric acid kapa sulfuric acid, mme e hydrolyzes ho formic acid le dimethylamine. E tsitsitse haholo moyeng mme ha e futhumatswa ho fihlela e bela. Ha mocheso o le hodimo ho 350 ℃, e tla lahlehelwa ke metsi mme e hlahise carbon monoxide le dimethylamine. N,N-DIMETHYLFORMAMID ke tharollo e ntle ea polar ea aprotic, e ka qhalang boholo ba lintho tse phelang le tse sa pheleng, 'me e kopanngoa le metsi, alcohols, ethers, aldehydes, ketones, esters, halogenated hydrocarbons le aromatic hydrocarbons, jj. . Qetello e nang le positive charge ea molek'hule ea N,N-DIMETHYLFORMAMID e pota-potiloe ke lihlopha tsa methyl, e leng se etsang steric e thibelang, 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 rarollotsoeng. Likarabelo tse ngata tsa ionic li etsoa habonolo ho N,N-DIMETHYLFORMAMID ho feta ho li-solvents tse akaretsang tsa protic, mohlala, karabelo ea li-carboxylate tse nang le halogenated hydrocarbons ho N,N-DIMETHYLFORMAMID mochesong oa kamore, e ka hlahisa li-ester tse nang le chai e ngata, haholo-holo e loketseng tlhahiso ea li-ester tse sitisitsoeng ke sterical.
Tšebetso. Mantsoe a tšoanang
amide,n,n-dimethyl-formicaci; Dimethylamidkyselinymravenci; dimethylamidkyselinymravenci; N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE; NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML; N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREANT; N,N-DIMETHYLFORMAMIDEENEUTRALMARKER*FORCAPILLARY
Litšebeliso tsa DMF
DMF ke solvent e ntle bakeng sa mefuta e fapaneng ya di-polymer tse phahameng tse kang polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, jj., mme e ka sebediswa bakeng sa ho phunya ka metsi difaeba tsa maiketsetso tse kang difaeba tsa polyacrylonitrile, le ho kopanya polyurethane; E sebediswa bakeng sa ho etsa filimi ya polasetiki; e ka boela ya sebediswa e le setlolo sa pente bakeng sa ho tlosa pente; e ka boela ya qhala di-pigment tse ding tse qhibilihang ka tlase, e le hore di-pigment di be le dibopeho tsa didae. DMF e sebediswa bakeng sa ho ntsha monko o monate le ho arola le ho kgutlisa butadiene ho tswa dikarolong tsa C4 le isoprene ho tswa dikarolong tsa C5, mme e ka boela ya sebediswa e le reagent e sebetsang bakeng sa ho arola dikarolo tse seng tsa hydrocarbon ho tloha parafini. E na le kgetho e ntle bakeng sa ho qhibilihisa ha isophthalic acid le terephthalic acid: isophthalic acid e qhibiliha haholoanyane ho DMF ho feta terephthalic acid, ho ntsha solvent kapa karolo ya Crystallization, tse pedi di ka arolwa. Indastering ya petrochemical, DMF e ka sebediswa e le monya kgase ho arola le ho hlwekisa dikhase. Jwalo ka moemedi wa ho hlwekisa bakeng sa ho hlatswa Chemicalbook indastering ya polyurethane, e sebediswa haholoholo tlhahisong ya letlalo la maiketsetso le metsi; jwalo ka solvent indastering ya faeba ya acrylic, e sebediswa haholoholo tlhahisong ya ho oma ha faeba ya acrylic; indastering ya elektroniki jwalo ka ho tima dikarolo tse phuthetsweng ka tin le diboto tsa potoloho Diindasteri tse ding di kenyelletsa bajari ba dikgase tse kotsi, disolvent bakeng sa ho etsa dikheriste tsa meriana, dikhomaretsi, jj. Dikarabelong tsa organic, DMF ha e sebediswe haholo feela e le solvent bakeng sa karabelo, empa hape ke karolo ya bohlokwa ya ho kopanya organic. Indastering ya dibolayadikokwanyana, e ka sebediswa ho hlahisa ciprofloxacin; indastering ya meriana, e ka sebediswa ho kopanya iodine, doxycycline, cortisone, vithamine B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, megestrol, bilevita, chlorpheniramine, sulfonamides Tlhahiso. DMF e na le phello ea ho susumetsa liketso tsa hydrogenation, dehydrogenation, dehydration le dehydrohalogenation, e leng se etsang hore mocheso oa karabelo o theohe 'me bohloeki ba sehlahisoa bo ntlafale.
1. Ke tharollo e ntle ka ho fetisisa ea lintho tse phelang, e sebelisoang e le tharollo ea polyurethane, polyacrylonitrile, le polyvinyl chloride, 'me e boetse e sebelisoa e le extractant, e le thepa e tala bakeng sa meriana le chefo e bolaeang likokoanyana.
2. E sebelisoa e le sesebelisoa sa ho sekaseka le ho rarolla mathata bakeng sa resin ea vinyl le acetylene
3. Hase feela thepa e tala ea lik'hemik'hale e nang le mefuta e mengata ea ts'ebeliso, empa hape ke tharollo e ntle haholo e nang le mefuta e mengata ea ts'ebeliso. DMF ke tharollo e ntle bakeng sa mefuta e fapaneng ea li-polymer tse phahameng joalo ka polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, jj., 'me e ka sebelisoa bakeng sa ho phuthoa ka metsi ha likhoele tsa maiketsetso joalo ka likhoele tsa polyacrylonitrile, le ho kopanngoa ha polyurethane; E sebelisoa bakeng sa ho etsa filimi ea polasetiki; e ka boela ea sebelisoa e le setlolo sa pente bakeng sa ho tlosa pente; e ka boela ea qhala mebala e meng e qhibilihang hanyane, e le hore mebala e be le litšobotsi tsa dae. DMF e sebelisoa bakeng sa ho ntša monko o monate le ho arola le ho khutlisa butadiene ho tsoa likarolong tsa C4 le isoprene ho tsoa likarolong tsa C5, 'me e ka boela ea sebelisoa e le reagent e sebetsang bakeng sa ho arola likarolo tse seng tsa hydrocarbon ho tsoa ho paraffin. E na le khetho e ntle bakeng sa ho qhibiliha ha isophthalic acid le terephthalic acid: isophthalic acid e qhibiliha haholoanyane ho DMF ho feta terephthalic acid, ho ntšoa ha solvent ho etsoa ka dimethyl chemicalbook acid formamide Kapa ho kristaletsoa hanyane, tse peli li ka aroloa. Indastering ea petrochemical, DMF e ka sebelisoa e le monya khase ho arola le ho hloekisa likhase. Likarabelong tsa organic, DMF ha e sebelisoe haholo feela e le solvent bakeng sa karabelo, empa hape ke sebaka sa bohlokoa sa ho kopanya organic. Indastering ea chefo e bolaeang likokoanyana, e ka sebelisoa ho hlahisa ciprofloxacin; indastering ea meriana, e ka sebelisoa ho etsa iodine, doxycycline, cortisone, vithamine B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen mosetareta, Bian nitrogen mosetareta, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, megestrol, bilevitamin, chlorpheniramine, jj. DMF e na le phello ea catalytic liketsong tsa hydrogenation, dehydrogenation, dehydration le dehydrohalogenation, e le hore mocheso oa karabelo o theohe 'me bohloeki ba sehlahisoa bo ntlafale.
4. Tharollo e sa etseng metsi. Tharollo bakeng sa vinyl le acetylene. Tekanyetso ea photometric. Tharollo e sa fetoheng ea khase chromatographic (mocheso o phahameng oa ts'ebetso ke 50 ℃, solvent ke methanol), karohano Tlhahlobo ea Chemicalbook C2 ~ C5 hydrocarbons, 'me e ka arola e tloaelehileng, isobutene le cis, trans-2-butene. Tlhahlobo ea masala a chefo e bolaeang likokoanyana. Ho kopanya Organic. Ho kopanya peptide. Bakeng sa indasteri ea lifoto.
Tlhaloso ea DMF
| Motsoako | Tlhaloso |
| Ponahalo | hlakile |
| Kakaretso | ≥99.9% |
| Methanol | ≤0.001% |
| 'Mala (PT-CO), Hazen | ≤5 |
| Metsi,% | ≤0.05% |
| Tšepe, mg/kg | ≤0.05 |
| Asiti (HCOOH) | ≤0.001% |
| Motheo (DMA) | ≤0.001% |
| PH(25℃, 20% metsi) | 6.5-8.0 |
| Ho tsamaisa motlakase (25℃, 20% metsi),μs/cm | ≤2 |
Ho paka ha DMF
190kg/moropa
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