Txheej txheem cej luam
DMA thiab DMAC xa mus rau tib yam tshuaj (N, N-Dimethylacetamide CAS 127-19-5) hauv ntau cov ntaub ntawv, thaum DMF (N,N-Dimethylformamide CAS 68-}12-2) yog cov kuab tshuaj sib txawv nrog cov khoom sib txawv. Ob leeg yog polar aprotic cov kuab tshuaj, tab sis lawv txawv ntawm kev ua tau zoo: DMAC feem ntau muab cov thermal stability zoo dua thiab nyiam nyob rau hauv high-temperature polymer thiab fiber ntau ua, thaum DMF feem ntau yog siv nyob rau hauv qis-kub tshuaj thiab raws li ib tug general-purpose hnyav.
Qhov kev xaiv ntawm lawv nyob ntawm koj cov txheej txheem txheej txheem, kev tswj hwm kev txwv, thiab cov khoom lag luam xav tau.
Dab tsi yog qhov txawv ntawm DMAC thiab DMF?
Ntawm no yog ib tug meej, ncauj lus kom ntxaws sib piv ntawmDimethylacetamide (DMAC), DMA, thiabDMF (Dimethylformamide)los pab koj nkag siab qhov sib txawv.
| Lub npe | Cov ntawv luv | CAS Nr | Molecular Formula | Qauv |
|---|---|---|---|---|
| Dimethylacetamide | DMAC | 127-19-5 | C4H9 Nr | CH3-C(=O)-N(CH3)2 |
| Dimethylacetamide (alternate abbreviation) | DMA | 127-19-5 | C4H9 Nr | CH3-C(=O)-N(CH3)2 |
| Dimethylformamide | DMF | 68-12-2 | C3H7 Nr | H-C(=O)-N(CH3)2 |
Lub cev muaj zog
| Khoom | DMAC/DMA | DMF |
|---|---|---|
| Boiling Point | 164 degree | 153 degree |
| Melting Point | -20 degree | -61 degree |
| Qhov ntom | 0.937 g / cm³ | 0.944 g / cm³ |
| Solubility hauv dej | Miscible | Miscible |
| tsw | Me ntsis amine -zoo li | Me ntsis amine -zoo li |
Yam khoom
N, N -Dimethylacetamide CAS 127-19-5 Muaj Qib Muaj Zog
Cov ntawv luv: DMAc/DMA
CAS Nr .: 127-19-5
Qib: Industrial Qib
Cov tsos mob: tsis muaj xim tsis muaj kua
N, N -Dimethylformamide DMF Tshuaj Solvent CAS 68-12-2
Synonyms: Dimethylformamide; Formyldimethylamine; DMF
Cov mis mos molecular: C3H7NO
Molecular Luj: 73.09
CAS Nr .: 68-12-2
Qhov zoo thiab qhov tsis zoo ntawm DMAC thiab DMF
Dimethylformamide CAS 68-12-2
Qhov zoo: Nws feem ntau pheej yig dua, muaj cov solubility zoo heev, thiab muaj qhov kub qis dua uas tuaj yeem ua tau zoo hauv qee cov txheej txheem.
Qhov tsis zoo: Kev ruaj ntseg tsis zoo, yooj yim decomposition rau dimethylamine thiab formic acid, thiab ntau dua flammability piv rau DMAc.
Kev Siv Hom: Ua haujlwm hnyav rau polyvinyl chloride, polyurethane, thiab yog siv dav hauv cov organic synthesis tshuaj.
Tom ntej: Dimethylacetamide CAS 127-19-5
Qhov zoo: Kev ruaj ntseg zoo dua, qis qis dua, qhov kub siab dua, thiab muaj kev nyab xeeb dua rau cov ntawv thov uas muaj qhov kub thiab txias.
Qhov tsis zoo: Nws feem ntau kim dua DMF, uas tuaj yeem txwv tsis pub siv rau hauv tus nqi - cov xwm txheej rhiab heev.
Kev Siv Hom: Ua raws li cov kuab tshuaj rau acrylic fiber ntau spinning thiab polyimide synthesis, thiab tseem siv hauv kev lag luam kws tshuaj.
Qhov txawv tseem ceeb rau cov neeg yuav khoom lag luam
Tshuaj Stability
Ib qho ntawm qhov sib txawv loj tshaj plaws yog thermal thiab tshuaj stability.
Dimethylacetamide feem ntau muab kev ruaj ntseg zoo dua thaum lub sijhawm ua haujlwm siab -kub, txo kev pheej hmoo ntawm cov kuab tshuaj degradation thiab pab tswj cov khoom zoo ib yam. DMF yog qhov yooj yim rau decomposition nyob rau hauv hnyav ua tej yam kev mob, uas tej zaum yuav cuam tshuam rau cov txheej txheem rhiab heev.
Rau cov tuam txhab nrhiav kev ua haujlwm ntev lossis ruaj khov batch zoo, dimethylacetamide DMAC feem ntau yog qhov kev xaiv.
Solvent Performance
Ob leeg cov kuab tshuaj yaj ntau ntau ntawm cov polymers thiab cov organic tebchaw.
DMAC feem ntau xaiv rau:
- Polyimide (PI)
- Polyurethane (PU)
- Acrylic fiber ntau lawm
- Pharmaceutical intermediates
- Cov tshuaj Electronics
DMF yog dav siv rau:
- PVC ua
- Synthetic tawv
- Organic synthesis
- Polyurethane systems
- Adhesives thiab coatings
Qhov kev xaiv zaum kawg nyob ntawm qhov kev xav tau ntawm koj cov txheej txheem tsim khoom.
Ua Haujlwm Kub
Vim tias DMAC muaj qhov kub siab dua (164 degree), nws ua tau zoo dua hauv kev tsim cov txheej txheem uas yuav tsum tau ua kom kub siab lossis qis dua evaporation.
DMF, nrog rau nws qhov qis qis, feem ntau xaiv thaum tshem tawm cov kuab tshuaj sai dua.
Kev txiav txim siab nqi
Dimethylformamide feem ntau tsis tshua kim thiab tej zaum yuav haum rau tus nqi - cov ntawv thov rhiab heev.
Dimethylacetamide feem ntau hais kom tus nqi siab dua tab sis tuaj yeem muab qhov zoo los ntawm:
- Txhim kho txheej txheem stability
- Kev tsim khoom zoo dua qub
- Txo cov kuab tshuaj degradation
- Tsawg qhov kev pheej hmoo ntawm kev cuam tshuam tsis zoo ntawm cov txheej txheem
Ntau lub tuam txhab ntsuas tag nrho cov kev ua tau zoo ntau dua li cov nqi yuav khoom ib leeg thaum xaiv cov kuab tshuaj.
Yam tshuaj twg koj yuav tsum xaiv?
| Siv | Pom zoo Solvent |
| High -kev ua haujlwm kub | DMAC |
| Zoo dua tshuaj stability | DMAC |
| Kev tsim tshuaj | DMAC |
| Polyimide ntau lawm | DMAC |
| Tsawg tus nqi yuav khoom | DMF |
| General organic synthesis | DMF |
| Cov kuab tshuaj evaporation sai dua | DMF |
- Tsis muaj universal "zoo dua" hnyav. Qhov kev xaiv zoo tshaj yog nyob ntawm koj cov txheej txheem, cov qauv zoo, thiab cov hom phiaj tsim khoom.
Raws li tus kws tshaj lijDMAC / DMF tus neeg muag khoom, peb muab kev lag luam thiab tshuaj qib Dimethylacetamide nrog kev ruaj khov zoo, muaj peev xwm muab khoom ntau thiab cov ntaub ntawv xa tawm tag nrho.
Tau txais koj daim ntawv xaj lossis tso koj daim ntawv xaj hnub no!
Cov lus nug nquag
Q1. Kuv puas yuav tsum xaiv DMAC lossis DMF rau kev ua cov polymer?
A: Qhov kev xaiv nyob ntawm koj qhov kev ua haujlwm. DMAC feem ntau nyiam rau siab -kev ua tau zoo polymers, polyimide, acrylic fiber ntau spinning, thiab daim ntawv thov uas yuav tsum tau thermal stability dua. DMF feem ntau xaiv rau kev ua cov khoom siv polymer, PVC, polyurethane, thiab cov ntawv thov uas cov nqi ua haujlwm yog qhov tseem ceeb.
Q2. Vim li cas DMAC kim dua DMF? Puas tsim nyog tus nqi ntxiv?
A: CAS 127-19-5 Dimethylacetamide hnyav feem ntau muaj tus nqi yuav ntau dua vim nws muaj qhov zoo xws li:
- Siab kub taw tes (164 degree)
- Zoo dua thermal stability
- Tsawg qhov kev pheej hmoo ntawm cov kuab tshuaj degradation
- Ntau qhov kev ua tau zoo sib xws hauv kev thov kev thov
Rau cov tuam txhab uas cov txheej txheem kev ruaj ntseg thiab cov khoom zoo yog qhov tseem ceeb, DMAC hnyav tuaj yeem muab cov nqi tsim khoom zoo dua.
Q3. DMAC puas tuaj yeem hloov DMF ncaj qha rau hauv cov txheej txheem tsim khoom?
A: Tsis tas li. Txawm hais tias DMAC thiab DMF muaj cov khoom hnyav zoo sib xws, lawv muaj cov ntsiab lus kub sib txawv, evaporation tus nqi, thiab kev coj tus cwj pwm. Kev ntsuam xyuas kev lag luam lossis kev sim me me - tau pom zoo ua ntej hloov tag nrho.
Q4. Dab tsi Dimethylacetamide DMAC purity kuv yuav tsum tau yuav rau cov ntawv thov kev lag luam?
A: Feem ntau cov neeg yuav khoom lag luam xaiv DMAC nrog 99.5%–99.9% purity, thaum tshuaj, hluav taws xob, thiab siab -cov ntaub ntawv kev ua tau zoo yuav xav tau qib purity siab dua.
txog peb
GNEE BIOyog tus kws tshaj lij ntawm cov khoom siv tshuaj lom neeg ua haujlwm rau cov neeg siv khoom thoob ntiaj teb. Peb tshwj xeeb hauv kev muab cov khoom lag luam zoo - cov kuab tshuaj zoo thiab cov tshuaj nruab nrab rau kev lag luam tshuaj, polymer, txheej, hluav taws xob, thiab kev lag luam.
Peb cov khoom ua tau raws li cov qauv zoo thoob ntiaj teb, suav nrog ISO, REACH, thiab RoHS cov cai yog qhov tsim nyog. Kev txhawb nqa los ntawm cov khoom lag luam txhim khu kev qha, kev tswj xyuas zoo, thiab kev xa tawm dav dav, peb muab cov khoom lag luam zoo ib yam, hloov pauv cov kev daws teeb meem, thiab kev xa khoom thoob ntiaj teb rau kev yuav khoom ntau yam tshuaj.
Peb qhov zoo muaj xws li:
- High -purity DMAC nrog cov khoom zoo sib xws
- Cov ntaub ntawv muaj txiaj ntsig zoo, suav nrog COA, TDS, thiab SDS
- Kev xaiv ntim tau yooj yim xws li steel nruas, IBC tso tsheb hlau luam, thiab ISO tso tsheb hlau luam
- Cov khoom lag luam txhim khu kev qha thiab muaj peev xwm muab khoom ntau
- Kev tshaj lij cov ntaub ntawv xa tawm thiab kev txhawb nqa thoob ntiaj teb
- Teb kev pabcuam kev lag luam thiab kev lag luam rau cov neeg yuav khoom thoob ntiaj teb
Nrog xyoo ntawm kev paub nyob rau hauv thoob ntiaj teb cov khoom siv tshuaj, peb pab cov neeg muas zaub los txhim khu kev qha raw cov ntaub ntawv thaum ua kom ruaj khov zoo thiab npaum tus me nyuam.
Lwm Yam Kub- Muag Khoom
CAS 64-19-7 Acetic acid/Glacial Acetic Acid; CAS 75-05-8 Acetonitrile; CAS 67-68-5 Dimethyl Sulfoxide (DMSO); CAS 67-63-0 Isopropyl cawv (IPA); CAS 95-47-6 o-Xylene; CAS 106-42-3 p-Xylene; CAS 75-09-2 Dichloromethane (DCM).
Tiv tauj peb tam sim no rau qhov kev tsocai tshiab kawg; peb lav tus nqi sib tw kiag li.
GNEE BIO Khoom ntim khoom
Neeg tuaj xyuas
