N,N{0}}Dimethylformamide (DMF)yog ib tug polar aprotic organic solvent lug siv nyob rau hauv tshuaj synthesis, kws, polymers, coatings, thiab industrial ua. Nws cov tshuaj formula yogC3H7TSIS MUAJ, thiab nws tus lej CAS yog68-12-2.
Cov qauv molecular ntawm dimethylformamide tuaj yeem sau uaHCON(CH3)2los yogHC(=O)-N(CH3)2. Raws li txoj cai, nws muaj ib pab pawg neeg formyl (–CHO) sib koom ua ke rau nitrogen atom uas nqa ob pawg methyl (–CH).3). Qhov kev sib xyaw ua ke no muab DMF nws muaj zog polarity thiab zoo heev solvency rau ntau cov organic thiab inorganic tshuaj.
DMF yog dab tsi?
DMF sawv rauN,N{0}}Dimethylformamide, ib tug derivative ntawm formamide nyob rau hauv uas ob hydrogen atoms txuas rau cov nitrogen yog hloov los ntawm methyl pawg.
Lub simplified structural formula yog:HC(=O)-N(CH3)2
Lub molecule muaj peb lub ntsiab structural Cheebtsam:
- Ib pawg carbonyl (C=O): Cov pab pawg carbonyl pab txhawb qhov polarity ntawm cov molecule.
- Ib qho amide nitrogen: Cov nitrogen atom yog ncaj qha sib txuas rau carbonyl carbon.
- Ob pawg methyl (–CH3): Cov pab pawg no tau txuas nrog nitrogen atom thiab muab DMF nws "dimethyl" npe.
Vim tias DMF muaj cov pab pawg polar amide thiab tsis muaj O-H lossis N-H daim ntawv cog lus, nws raug cais raws li cov kuab tshuaj polar aprotic. Nws cov qauv molecular tso cai rau nws kom yaj ntau yam ntawm cov polar thiab cov tsis muaj -polar compounds.
DMF Molecular Formula thiab Basic Chemical Information
| Khoom | Cov ntaub ntawv |
|---|---|
| Hom npe | Dimethylformamide |
| IUPAC npe | N,N{0}}Dimethylformamide |
| CAS Nr | 68-12-2 |
| Cov mis mos molecular | C₃H₇NO |
| Cov qauv qauv | HC(=O)-N(CH₃)₂ |
| Molecular hnyav | 73,09 g / mol |
| Qhov tshwm sim | Cov kua dej tsis muaj xim |
| Hom kuab tshuaj | Polar aprotic kuab tshuaj |
Vim li cas tus qauv ntawm DMF ua kom nws muaj qhov hnyav zoo?
Cov qauv ntawm Dimethylformamide yog ze ze rau nws cov kuab tshuaj zoo heev. Cov pab pawg carbonyl tsim ib lub zog dipole nyob rau hauv lub molecule, thaum lub nitrogen atom hloov nrog ob pawg methyl.
Qhov kev npaj molecular no muab DMF qhov siab ntawm polarity yam tsis tau muab cov kua qaub hydrogen tshem tau yooj yim. Raws li qhov tshwm sim, nws tuaj yeem cuam tshuam zoo nrog ntau cov polar tebchaw thiab koom nrog ntau yam tshuaj lom neeg yam tsis muaj tus cwj pwm zoo li cov kuab tshuaj protic.
Yog li ntawd, Dimethyl Formamide feem ntau xaiv thaum muaj cov tshuaj tiv thaiv lossis cov txheej txheem kev lag luam yuav tsum muaj cov kuab tshuaj uas muaj zog tawg rau cov organic tebchaw, polymers, ntsev, lossis lwm yam khoom siv polar.
DMF ua ib qho hnyav hauv Organic Chemistry
Ib qho tseem ceeb tshaj plaws ntawm kev siv Dimethyl Formamide yog qhov hnyav hauvorganic synthesis. Nws cov kuab tshuaj muaj zog thiab kub kub taw tes ua rau nws muaj txiaj ntsig zoo rau cov tshuaj tiv thaiv uas xav tau qhov kub thiab txias los yog xav tau cov tshuaj tiv thaiv polar.
Nws nquag siv hauv cov tshuaj tiv thaiv uas muaj kev hloov pauv nucleophilic, kev sib txuas cov tshuaj tiv thaiv, thiab kev npaj cov tshuaj thiab tshuaj tshwj xeeb intermediates.
- Hauv kev sim thiab kev tsim cov khoom siv hluav taws xob, DMF tuaj yeem siv rau:
- Dissolve polar organic tebchaw thiab cov tshuaj tiv thaiv intermediates.
- Muab qhov chaw tiv thaiv polar rau cov tshuaj tiv thaiv hluavtaws.
- Pab hauv kev npaj cov tshuaj intermediates.
- Txhim kho cov solubility ntawm qee cov polymers thiab cov ntaub ntawv tshwj xeeb.
- Ua haujlwm ua kuab tshuaj hauv kev tsim tshuaj.
Main Industrial Siv DMF
Kev lag luam kws tshuaj
Dimethyl Formamide yog dav siv los ua kev ua thiab cov tshuaj tiv thaiv hnyav hauv kev tsim tshuaj thiab tshuaj synthesis. Nws tuaj yeem pab yaj cov reactants thiab intermediates thaum npaj cov khoom xyaw tshuaj nquag thiab lwm yam tshuaj tshwj xeeb.
Vim tias cov txheej txheem tshuaj muaj cov kev cai nruj rau purity thiab residual solvents, cov qib DMF uas tsim nyog yuav tsum raug xaiv raws li cov txheej txheem tsim khoom tshwj xeeb thiab cov kev cai tswj hwm.
Kev lag luam Agrochemical
Nws kuj tseem siv rau hauv kev tsim thiab ua cov tshuaj ua liaj ua teb, suav nrog qee yam tshuaj tua kab mob, tshuaj tua kab, thiab fungicide intermediates. Nws muaj zog solvency ua rau nws pab tau nyob rau hauv synthesis thiab formulation txheej txheem uas cov pa kuab tshuaj tej zaum yuav tsis muaj txaus dissolving zog.
Polymer thiab Fiber Kev Lag Luam
Ib qho tseem ceeb kev lag luam daim ntawv thov ntawm DMF yog nyob rau hauv polymer ua. Nws yog siv los ua cov kuab tshuaj rau qee cov polymers thiab tuaj yeem koom nrog hauv kev tsim cov hluavtaws fibers, films, coatings, thiab polyurethane- cov ntaub ntawv ntsig txog.
DMF yog qhov tseem ceeb tshwj xeeb tshaj yog thaum cov txheej txheem tsim khoom yuav tsum muaj cov kuab tshuaj uas muaj peev xwm yaj lossis ua cov khoom hnyav -molecular- hnyav.
Coatings thiab Surface Treatment
N,N-Dimethylformamide tuaj yeem siv los ua cov kuab tshuaj lossis kev pabcuam hauv cov txheej txheem xaiv, cov nplaum, thiab saum npoo- kho cov qauv. Nws qhov polarity thiab solvency tuaj yeem pab tswj kom muaj qhov sib xws thiab ua kom yooj yim rau kev ua haujlwm ntawm kev nyuaj -rau-solve Cheebtsam.
Electronics thiab Cov Tshuaj Tshwj Xeeb
High-purity N,N-Dimethylformamide kuj tseem siv tau rau hauv cov tshuaj tshwj xeeb thiab hluav taws xob- cov khoom tsim khoom uas tswj cov kuab tshuaj yog qhov tseem ceeb. Qhov yuav tsum tau specification nyob ntawm daim ntawv thov, txheej txheem ntau lawm, thiab purity yuav tsum.
DMF vs. Polar Aprotic Solvents
DMF feem ntau piv nrog cov kuab tshuaj xws li dimethyl sulfoxide (DMSO), dimethylacetamide (DMAc), thiab N-methyl-2-pyrrolidone (NMP).
| Solvent | CAS Nr. | Cov yam ntxwv tseem ceeb | Tej kev siv |
|---|---|---|---|
| DMF | 68-12-2 | Muaj zog polar aprotic hnyav | Organic synthesis, pharmaceuticals, polymers, txheej |
| DMSO | 67-68-5 | Polar hnyav heev | Pharmaceuticals, synthesis, industrial processing |
| DMAc | 127-19-5 | Polar aprotic amide hnyav | Polymers, fibers, coatings, tshuaj synthesis |
| NMP | 872-50-4 | Siab -boiling polar solvent | Polymers, coatings, electronics, industrial processing |
Puas yog DMF muaj kev nyab xeeb los tuav?
DMF yuav tsum tau ua raws li kev lag luam tshuaj uas xav tau kev tswj hwm kev ua haujlwm tsim nyog. Nws tuaj yeem nqus tau los ntawm daim tawv nqaij thiab kev nqus pa yuav tsum tau tswj hwm. Rov ua dua lossis raug ntau dhau tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv, suav nrog kev cuam tshuam rau daim siab.
Thaum tuav DMF hnyav, cov neeg ua haujlwm yuav tsum ua raws li cov khoom lag luamDaim Ntawv Qhia Txog Kev Nyab Xeeb (SDS)thiab cov kev cai hauv chaw ua haujlwm. Tsim nyog engineering tswj thiab cov cuab yeej tiv thaiv tus kheej yuav tsum tau siv.
- Siv nws nyob rau hauv qhov chaw zoo - qhov cua los yog lub hood haum.
- Tsis txhob kov cov tawv nqaij ncaj qha thiab raug rau ntev.
- Hnav cov tshuaj lom neeg- cov hnab looj tes tiv thaiv thiab tiv thaiv qhov muag tsim nyog.
- Khaws cov thawv kaw kom nruj thaum tsis siv.
- Khaws thiab thauj cov khoom raws li cov cai tswj kev siv tshuaj.
- Xa mus rau SDS tam sim no rau cov ncauj lus kom ntxaws - tswj thiab khaws cia.
Cia thiab tuav
Kev khaws cia kom zoo yog qhov tseem ceeb rau kev tswj hwm DMF zoo thiab txo qis qhov cuam tshuam tsis tsim nyog. Feem ntau nws yuav tsum tau muab khaws cia rau hauv lub kaw ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntim ntim ntim cov thawv ntim khoom kom zoo nyob rau hauv qhov chaw txias, qhuav, thiab zoo- qhov chaw cia qhov cua.
Rau kev yuav khoom lag luam, cov neeg yuav khoom yuav tsum tau lees paub qhov yuav tsum tau uapurity, ntim, COA, SDS, TDS, kom muaj nuj nqis, thiab shipping yuav tsumua ntej muab qhov kev txiav txim.
Xaus
Tus qauv ntawmN,N{0}}Dimethylformamide (DMF)piav ntau yam ntawm nws cov khoom tseem ceeb hauv kev lag luam. Nrog cov qauv molecularC3H7TSIS MUAJthiab qauv qauvHC(=O)-N(CH3)2, DMF muaj ib pawg polar amide uas muab nws cov kuab tshuaj zoo heev thiab ua rau nws muaj txiaj ntsig zoo ntawm polar aprotic hnyav.
CAS 68-12-2 yog dav siv nyob rau hauv cov organic synthesis, tshuaj, agrochemicals, polymers, fibers, coatings, thiab tshwj xeeb chemical manufacturing. Rau kev lag luam kev lag luam, xaiv qhov tseeb purity thiab specification yog qhov tseem ceeb. Cov neeg yuav khoom yuav tsum soj ntsuam daim ntawv thov, xav tau zoo, ntim, cov ntaub ntawv, thiab kev thauj mus los ua ntej yuav khoom.
Nrhiav DMF CAS 68-12-2 rau kev siv ntau?
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