N,N-Dimethylformamide/ DMF/ CAS: 68-12-2
Kev Piav Qhia Luv:
Lub Npe Khoom: N,N-Dimethylformamide/ DMF
Hom: ZA-WW
CAS: 68-12-2
MF:C3H7NO
MW:73.09
QAUV:
cov lus qhia tshwj xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov tsos | kua |
| Xim | Pob tshab |
| Tsw tsw | Tsw tsw tshwj xeeb |
| Qhov Kub Yaj | -61°C (lit.) |
| Kev Hloov Tshwj Xeeb | 0.94° |
| Kub Kub | 153°C (lit.) |
| Qhov Ceev | 0.944 g/mL (lit.) |
| Qhov Ceev ntawm Cov Pa | 2.5 (piv rau huab cua) |
| Siab ntawm cov pa dej | 2.7 mmHg (20°C) |
| Refractive Index | n₂₀/Hli 1.430 (lit.) |
| Qhov Teeb Meem | 136°F |
| Cov Cai Khaws Cia | Khaws cia ntawm +5°C txog +30°C |
| Kev Sib Cais Acid Constant (pKa) | -0.44 ± 0.70 (Kwv yees) |
| Tus nqi PH | 7 (200 g/L, H₂O, 20°C) |
| Xaus lus | Cov qauv no ua tau raws li cov lus qhia. |
Kev Siv
- Ua haujlwm ua ib qho kev ua tau zoo "universal solvent" los yaj cov khoom siv hluavtaws fiber ntau (piv txwv li, polyacrylonitrile rau acrylic fibers), cov yas resins (piv txwv li, PVC), thiab cov tshuaj intermediates.
- Pab txhawb rau cov tshuaj organic synthesis (piv txwv li, nucleophilic substitution) thiab kev ntxuav tshuaj (piv txwv li, extraction, recrystallization).
- Siv rau hauv cov txheej txheej / kua mem kom yaj cov resins thiab cov xim, txhim kho kev nplaum ntawm cov txheej txheej thiab cov kua mem kis tau.
- Ua haujlwm ua cov tshuaj tiv thaiv lossis cov tshuaj catalyst hauv qee cov txheej txheem tshuaj lom neeg (piv txwv li, cov tshuaj tiv thaiv formylation).
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
