Dimethylformamide DMF Colorless Transparent Liquid rau Solvent Siv
Technical Index
| Khoom | Chav tsev | Tus nqi | Kev tshwm sim |
| Qhov tshwm sim | TSHIAB | TSHIAB | |
| Formic acid | ppm ua | ≤ 25 | 3 |
| GENERAL | % | 9 9,9mn | 99.98 ib |
| Xim (PT-CO) | Hazen | 10 Max | <5 |
| Dej | mg/kg | 300 Max | 74 |
| IRON | mg/kg | 0.050 Max | 0 |
| ACIDITY (HCOOH) | mg/kg | 10 Max | 5 |
| BASICITY (DMA) | mg/kg | 10 Max | 0 |
| METHANOL | mg/kg | 20 Max | 0 |
| CONductivity (25ºC, 20% AQUEOUS) | μs / cm | 2.0 Max | 0.06 ib |
| PH | 6.5-8.0 Nws | 7.0 ib |
Kev siv
Ib qho ntawm cov yam ntxwv zoo ntawm DMF yog nws lub peev xwm los sib xyaw nrog dej thiab cov kuab tshuaj organic feem ntau. Cov yam ntxwv no teev nws sib nrug los ntawm lwm cov kuab tshuaj, ua rau nws muaj ntau yam thiab haum rau ntau yam kev siv. DMF pom zoo solubility rau ob qho tib si organic thiab inorganic tebchaw, ua rau nws yog ib qho tseem ceeb muaj nyob rau hauv lub synthesis ntawm pharmaceuticals, dyes, thiab polymers. Nws cov xim tsis muaj xim thiab pob tshab ua kom ntseeg tau tias nws tsis muaj kab los yog qhov seem, ua rau nws zoo tagnrho rau cov khoom lag luam zoo thiab rhiab heev.
Peb cov khoom DMF paub tsis yog rau lawv cov khoom hnyav, tab sis kuj rau lawv qhov zoo tshaj plaws. Peb txaus siab rau peb tus kheej ntawm kev muab DMFs zoo tshaj plaws uas ua tau raws li cov qauv kev lag luam siab tshaj plaws. Nws purity thiab sib xws ua rau nws yog ib qho kev xaiv txhim khu kev qha rau cov kws tshaj lij hauv txhua qhov chaw. Los ntawm cov chaw tsim tshuaj mus rau cov kws tsim tshuaj, peb cov DMFs nrov rau lawv txoj kev ntseeg siab thiab kev ua tau zoo.
Hauv cov ntsiab lus, peb cov N, N-Dimethylformamide yog cov khoom lag luam zoo tshaj plaws nrog ntau yam kev sib tw thiab zoo. Nrog nws cov solubility zoo heev rau ntau qhov sib txuas thiab nws muaj peev xwm sib tov nrog dej thiab cov kuab tshuaj organic, nws yog cov khoom siv tshuaj lom neeg zoo tshaj plaws rau ntau qhov kev lag luam. Txawm hais tias koj xav tau cov kuab tshuaj rau cov tshuaj synthesis, dye ntau lawm lossis polymer manufacturing, peb DMFs ua kom cov qib siab tshaj plaws ntawm kev ua tau zoo thiab kev ntseeg tau. Cia siab rau peb cov khoom kom ua tau raws li koj qhov yuav tsum tau ua thiab coj koj cov haujlwm mus rau qhov siab tshiab.
