"DMF Boiling Point: Kev Saib Xyuas Zoo ntawm Cov Khoom ntawm Dimethylformamide
Dimethylformamide (DMF) yog cov organic hnyav siv dav hauv kev lag luam tshuaj, tshuaj thiab hluav taws xob. Hauv tsab xov xwm no, peb yuav tham txog qhov nthuav dav ntawm qhov kub ntawm DMF, cov cuab yeej tseem ceeb ntawm lub cev, thiab txheeb xyuas nws qhov cuam tshuam rau kev siv tswv yim.

1. Cov yam ntxwv ntawm DMF

DMF yog cov kua tsis muaj xim tsis muaj xim nrog cov ntxhiab tsw ammonia tsis muaj zog. Nws yog cov kuab tshuaj polar thiab yog miscible nrog dej thiab feem ntau cov kuab tshuaj organic. Vim nws qhov zoo solubility thiab kub kub taw tes, DMF feem ntau yog siv nyob rau hauv tshuaj synthesis, polymerization cov tshuaj tiv thaiv, fiber ntau thiab zaj duab xis manufacturing. Paub txog qhov kub ntawm DMF yog ib qho ntawm cov yuam sij rau kev siv cov kuab tshuaj no kom raug. 2.

2. Dab tsi yog qhov kub ntawm DMF?

DMF muaj qhov kub ntawm 307 ° F (153 ° C). Qhov no kub kub taw tes tso cai rau DMF siv nyob rau hauv siab kub tsis volatility, thiab stability ntawm lub DMF boiling point ua rau nws haum rau ntau yam kev xav uas yuav tsum tau cua sov, xws li high-temperature polymerization, kua evaporation, thiab high efficiency hnyav systems. Hauv cov ntawv thov no, DMF muab qhov chaw nyab xeeb thiab muaj txiaj ntsig zoo. 3.

3. Kev cuam tshuam ntawm DMF boiling point ntawm nws daim ntawv thov

Lub ntsiab lus kub ntawm DMF cuam tshuam ncaj qha rau nws daim ntawv thov hauv kev lag luam sib txawv. Hauv kev lag luam kws tshuaj, qhov kub kub txhais tau tias DMF tuaj yeem yaj cov tshuaj nyuaj rau kev daws teeb meem ntawm qhov kub siab dua, txhim kho kev ua haujlwm ntawm cov tshuaj synthesis. Hauv kev lag luam tshuaj, qhov kub siab DMFs yog siv rau hauv cov tshuaj tiv thaiv uas xav tau qhov kub thiab txias, xws li kev tsim cov resins thiab polyamides. Cov cuab yeej no tseem ua rau DMF yog cov kuab tshuaj zoo tshaj plaws rau cov txheej txheem kub thiab cov inks.
Ntawm qhov tod tes, qhov kub ntawm DMF tseem cuam tshuam nws txoj kev rov qab los thiab kev pov tseg ib puag ncig. Qhov twg yuav tsum tau distillation kom rov qab tau DMF, nws lub boiling point txiav txim lub zog noj thiab efficiency ntawm cov txheej txheem rov qab. Yog li ntawd, hauv kev lag luam kev lag luam, tsis yog tsuas yog cov khoom siv tshuaj lom neeg ntawm DMF yuav tsum xav txog, tab sis kuj tseem cuam tshuam cov ntsiab lus kub ntawm cov txheej txheem kev ua haujlwm yuav tsum raug coj mus rau hauv tus account.

4. Kev kub ntxhov ntawm DMF Boiling Points

Txawm hais tias DMF boiling point yog 153 ° C ntawm tus qauv atmospheric siab, kev hloov nyob rau hauv ambient siab kuj yuav cuam tshuam rau lub boiling point. Thaum qis qis, qhov kub ntawm DMF txo qis, uas yog qhov zoo dua rau cov txheej txheem nqus dej distillation uas hnyav rov qab tuaj yeem ua tiav ntawm qhov kub qis dua nrog kev puas tsuaj rau cov khoom kub-rhiab heev. Kev nkag siab thiab kev paub txog kev hloov pauv hauv DMF qhov kub kub ntawm qhov sib txawv yog qhov tseem ceeb ntawm kev ua kom zoo ntawm cov txheej txheem kev lag luam.

5. Kev saib xyuas kev nyab xeeb thiab ib puag ncig

DMF yog cov tshuaj tsis hloov pauv, thiab txawm tias nws qhov kub hnyiab, yuav tsum tau saib xyuas kom tsis txhob muaj kev phom sij ntawm volatilisation thaum ua haujlwm kub. Kev raug lub vapor ntev ntawm DMF tuaj yeem cuam tshuam rau tib neeg kev noj qab haus huv, yog li kev tiv thaiv tsim nyog xws li hnav cov khoom tiv thaiv ua pa thiab ua kom muaj cua zoo yuav tsum tau ua thaum lub sijhawm ua haujlwm, thiab kev pov tseg DMF cov kua pov tseg yuav tsum ua raws li cov kev cai nruj ib puag ncig los tiv thaiv ib puag ncig cov pa phem.
Cov ntsiab lus
Nkag siab txog DMF boiling point thiab yuav ua li cas nws cuam tshuam rau cov ntawv thov kev lag luam yog qhov kev paub tseem ceeb rau cov neeg ua haujlwm hauv kev lag luam tshuaj thiab tshuaj, thiab qhov kub kub ntawm DMF ntawm 153 ° C ua rau nws muaj txiaj ntsig zoo hauv kev ua haujlwm kub. Kev nkag siab zoo txog qhov cuam tshuam ntawm DMF cov ntsiab lus kub ntawm cov txheej txheem thiab kev ntsuas kev nyab xeeb tuaj yeem pab txhim kho cov txheej txheem, txhim kho kev ua haujlwm thiab ua kom muaj kev nyab xeeb ntawm kev ua haujlwm. Nws yog ib qho tseem ceeb uas yuav tsum ua raws li kev nyab xeeb thiab ib puag ncig cov cai thaum thov DMF kom ntseeg tau tias nws cov txiaj ntsig tau txais txiaj ntsig ntau. "