N-dimethylformamide yog dab tsi?
N,N-Dimethylformamide txhais tau tias yog cov kuab tshuaj siv hauv kev lag luam tshuaj thiab tshuaj, tshwj xeeb hauv kev tsim cov tawv hluavtaws thiab polyacrylonitrile fibers.
Dab tsi yog qhov hnyav molecular ntawm dimethylformamide?
Qhov hnyav molecular ntawm dimethylformamide (CAS: 68-12-2) yog 73.09 g / mol.
| Parameter | Kev piav qhia |
|---|---|
| Tshuaj npe | Dimethylformamide |
| Common Abbreviation | DMF |
| CAS Nr | 68-12-2 |
| Molecular Formula | C₃H₇NO |
| Molecular Luj | 73,09 g / mol |
| Qhov tshwm sim | Colorless rau lub teeb daj kua |
| tsw | me ntsis amine-zoo li tsw |
| Solvent Hom | Polar aprotic kuab tshuaj |
N,N{0}}Dimethylformamide (DMF) cov khoom
N,N-Dimethylformamide (DMF) yog cov kua tsis muaj xim, pob tshab nrog cov khoom hauv qab no lub cev thiab tshuaj lom neeg:
- Lub cev lub cev thiab tsw: tsis muaj xim, pob tshab kua nyob rau hauv chav tsev kub nrog ib tug faint, peculiar tsw (zoo ib yam li fishy tsw);
- Density and Boiling Point: Density approximately 0.948 g/cm³ (20℃), boiling point 153℃;
- Melting Point thiab Flash Point: Melting point -61 degree, flash point 58 degree, cais raws li cov kua flammable;
- Solubility: Cov polar siab heev, miscible nrog dej, cawv, ethers, esters, ketones, halogenated hydrocarbons, thiab aromatic hydrocarbons. Dissolute polymers xws li polyethylene thiab polyvinyl chloride, tau txais nws lub npe ntawm "universal hnyav";
- Stability: Exhibits zoo thermal stability thaum tsis muaj acids los yog hauv paus, tiv thaiv decomposition thaum rhuab mus rau boiling point; Txawm li cas los xij, nws decomposes siab tshaj 350℃los tsim carbon monoxide thiab dimethylamine;
- Lwm Cov Khoom: Ua rau hydrolysis tsim cov formic acid thiab dimethylamine thaum boiled hauv aqueous daws; cov ntaub ntawv ruaj khov complexes nrog hydrochloric acid thiab hnyav hlau ntsev.
Vim li cas thiaj xaiv Gneebio ua koj tus neeg muag khoom?
Raws li ib tugN,N{0}}Dimethylformamide (CAS: 68-12-2) chaw tsim tshuaj paus, Gneebio tsom rau cov khoom sib xws, kev siv tau zoo, thiab kev ntseeg siab ntawm cov khoom siv ntau. Lub tuam txhab ua haujlwm raws li kev tswj hwm nruj nruj kom ntseeg tau tias N, N-Dimethylformamide (CAS: 68-}12-2) ua tau raws li qhov yuav tsum tau muaj ntawm thaj chaw loj thiab kev tsim khoom tas mus li.
Qhov tseem ceeb ntawm kev tsim khoom thiab khoom siv zog muaj xws li:
- Tswj purity qib tsim nyog rau kev lag luam thiab khoom siv
- ruaj khov batch-rau-batch zoo rau ntev- kev yuav khoom
- Muaj peev xwm muab tau los txhawb kev cog lus thiab chaw xaj khoom
- Export -npaj ntim thiab cov ntaub ntawv (COA, SDS, thiab lwm yam)
