Tetrahydrofuran Ceev: Nkag siab qhov tseem ceeb ntawm qhov kev ntsuas tseem ceeb no
Tetrahydrofuran (THF) yog ib qho organic hnyav siv nyob rau hauv ntau yam kev siv xws li tshuaj, tshuaj thiab tshuaj polymer. Raws li tus kws tshaj lij kev lag luam tshuaj, kev nkag siab qhov ceev ntawm tetrahydrofuran yog qhov tseem ceeb rau kev ua haujlwm thiab kev siv. Hauv tsab xov xwm no, peb yuav tshawb xyuas cov ntsiab lus tseem ceeb ntawm tetrahydrofuran ntom ntom, cov yam ntxwv uas cuam tshuam rau nws thiab nws qhov tseem ceeb hauv kev siv tswv yim.
Tetrahydrofuran Density yog dab tsi?
Tetrahydrofuran ntom yog hais txog qhov loj ntawm ib chav tsev ntim ntawm tetrahydrofuran ntawm qhov muab kub thiab siab. Qhov ceev yog feem ntau qhia nyob rau hauv grams ib cubic centimeter (g / cm³) los yog kilograms ib cubic meter (kg / m³). Ntawm chav tsev kub (20 ° C), qhov ceev ntawm tetrahydrofuran yog kwv yees li 0.889 g / cm³. Qhov ntom ntom yog qhov tseem ceeb ntawm lub cev tsis zoo rau kev ntsuas cov khoom ntawm cov khoom, uas tsis tsuas yog cuam tshuam nrog purity ntawm cov khoom, tab sis kuj cuam tshuam rau tus cwj pwm ntawm cov kuab tshuaj hauv cov tshuaj tiv thaiv.
Cov nyhuv ntawm qhov kub ntawm qhov ntom ntawm tetrahydrofuran
Qhov kub thiab txias yog ib qho tseem ceeb cuam tshuam rau qhov ntom ntawm tetrahydrofuran. Raws li qhov kub nce, qhov ceev ntawm tetrahydrofuran feem ntau txo qis. Qhov no yog vim lub fact tias cov molecular qhov sib nrug ntawm ib yam khoom nce ntawm qhov kub thiab txias, ua rau lub ntim expansion, thaum lub loj nyob tas li, thiab yog li ntawd qhov ceev yuav txo. Hauv kev tsim tshuaj lom neeg, qhov ceev ntawm tetrahydrofuran yuav tsum raug xam kom raug rau kev ua haujlwm kub sib txawv kom ntseeg tau tias cov tshuaj tiv thaiv raug thiab cov khoom tswj tau zoo.
Kev sib raug zoo ntawm tetrahydrofuran ceev thiab purity
Qhov ceev ntawm tetrahydrofuran kuj cuam tshuam los ntawm nws cov purity. Tetrahydrofuran ntawm siab purity feem ntau muaj qhov ruaj khov, qhov ceev ntawm tetrahydrofuran uas muaj impurities yuav hloov pauv. Lub xub ntiag ntawm impurities tuaj yeem ua rau siab lossis qis hnyav, uas cuam tshuam rau qhov sib npaug ntawm cov tshuaj tiv thaiv, tus nqi ntawm cov tshuaj tiv thaiv, thiab qhov xwm txheej ntawm cov khoom kawg. Yog li ntawd, nyob rau hauv kev xyaum, ntsuas thiab tswj qhov ceev ntawm tetrahydrofuran pab ntsuam xyuas nws purity thiab yog li xyuas kom meej stability ntawm cov txheej txheem ntau lawm.
Qhov tseem ceeb ntawm tetrahydrofuran ntom ntom hauv kev siv tswv yim
Hauv kev lag luam tshuaj, kev nkag siab txog qhov sib txawv ntawm tetrahydrofuran ntom ntom yog qhov tseem ceeb rau kev tsim qauv, xaiv cov khoom siv thiab kev ua kom zoo. Piv txwv li, hauv cov tshuaj tiv thaiv polymerization, kev hloov pauv hauv tetrahydrofuran ntom yuav cuam tshuam rau qhov hnyav molecular faib ntawm cov polymer thiab yog li cov khoom ntawm cov khoom kawg. Hauv cov txheej txheem rho tawm thiab kev sib cais, qhov sib txawv ntom ntom kuj yog ib qho tseem ceeb hauv kev xaiv cov kuab tshuaj haum. Yog li ntawd, kev paub txog kev hloov pauv txoj cai ntawm tetrahydrofuran ntom ntom yog qhov tseem ceeb rau kev txhim kho kev tsim khoom thiab cov khoom zoo.
Xaus
Tetrahydrofuran ntom ntom yog qhov tseem ceeb uas tsis tuaj yeem tsis quav ntsej hauv kev tsim tshuaj lom neeg, uas tsis tsuas yog cuam tshuam lub cev ntawm cov kuab tshuaj, tab sis kuj tseem cuam tshuam nrog ntau yam xws li kub thiab purity. Los ntawm kev nkag siab tob thiab kev tswj xyuas meej ntawm tetrahydrofuran ntom ntom, cov kws tshaj lij hauv kev lag luam tshuaj tuaj yeem ua kom zoo dua lawv cov txheej txheem thiab txhim kho kev ruaj ntseg thiab zoo ntawm lawv cov khoom. Yog li ntawd, tetrahydrofuran ntom ntom yog ib lub ntsiab lus tseem ceeb tsim nyog ntawm kev tshawb fawb tob, ob qho tib si hauv kev tshawb fawb hauv chav kuaj thiab kev tsim khoom lag luam.