Benzene density: Ib qho kev ntsuam xyuas tob thiab nws cov yam ntxwv cuam tshuam
Benzene, raws li cov organic sib xyaw ua ke, ua lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj. Qhov ntom ntawm benzene yog ib qho tseem ceeb tshaj plaws rau kev ntsuas nws lub cev thiab muaj kev cuam tshuam loj heev rau kev siv tshuaj lom neeg engineering. Hauv tsab xov xwm no, peb yuav txheeb xyuas qhov ceev ntawm benzene thiab nws cov kev cuam tshuam hauv kev nthuav dav kom pab koj nkag siab zoo dua qhov tseem ceeb no.
1. Dab tsi yog qhov ceev ntawm benzene?
Qhov ceev ntawm benzene yog hais txog qhov loj ntawm ib chav tsev ntim ntawm benzene ntawm qhov kub thiab txias. Feem ntau, qhov ceev ntawm benzene yog kwv yees li 0.8765 g / cm³ ntawm 20 ° C (chav kub). Tus nqi no txhais tau hais tias benzene kuj yog lub teeb nyob rau hauv cov kua hauv lub xeev, uas yog ib qho ntawm cov laj thawj vim li cas nws tau siv dav hauv kev tsim khoom thiab kev tshawb fawb hauv chav kuaj. Kev txiav txim siab tseeb ntawm qhov ntom ntom yog qhov tseem ceeb rau kev suav cov khoom siv, tsim thiab ua haujlwm hauv kev tsim tshuaj.
2. Qhov cuam tshuam ntawm qhov kub thiab txias ntawm qhov ntom ntawm benzene
Qhov kub thiab txias yog ib qho tseem ceeb cuam tshuam rau qhov ntom ntawm benzene. Raws li qhov kub thiab txias, qhov sib nrug ntawm molecular ntawm benzene nce, uas ua rau txo qhov ntom. Piv txwv li, qhov ceev ntawm benzene txo qis hauv cov xwm txheej saum toj no hauv chav tsev kub, uas yuav tsum tau saib xyuas tshwj xeeb hauv cov txheej txheem kub. Hloov pauv, thaum qhov kub thiab txias txo, qhov ceev ntawm benzene nce raws li. Yog li ntawd, thaum tsim cov txheej txheem tshuaj muaj xws li benzene, cov nyhuv ntawm qhov kub ntawm qhov ntom ntawm benzene yuav tsum tau muab coj los txiav txim siab tag nrho los xyuas kom meej qhov tseeb thiab ruaj khov ntawm cov txheej txheem ntau lawm.
3. Cov nyhuv ntawm qhov siab ntawm qhov ntom ntawm benzene
Txawm hais tias qhov cuam tshuam ntawm qhov ceev ntawm cov kua dej feem ntau me me, qhov ntom ntawm benzene yuav hloov mus rau qee qhov raws li qee qhov tshwj xeeb, xws li ib puag ncig siab. Kev nce siab ua rau qhov sib txawv ntawm cov molecular ntawm benzene txo qis, ua rau me ntsis nce qhov ntom. Qhov cuam tshuam ntawm qhov ceev ntawm benzene feem ntau yog qhov tsis zoo nyob rau hauv cov kev ua haujlwm tshuaj niaj hnub, tab sis nyob rau hauv cov ntawv thov uas benzene yog synthesized los yog khaws cia ntawm qhov kub siab, qhov tseem ceeb no tseem yuav tsum tau coj mus rau hauv tus account.
4. Purity thiab Benzene ntom
Lub purity ntawm benzene kuj muaj qhov cuam tshuam rau nws qhov ntom. Lub pureer benzene, qhov ze nws qhov ceev yog rau qhov theoretical tus nqi ntawm 0.8765 g / cm³. Yog tias benzene muaj lwm yam impurities lossis cov kuab tshuaj, nws qhov ceev yuav txawv, uas yog qhov tseem ceeb tshwj xeeb rau kev tswj hwm ntawm qee cov txheej txheem tshuaj lom neeg. Yog li ntawd, nyob rau hauv kev lag luam chemical, kev tswj kom muaj siab purity ntawm benzene tsis tsuas yog pab txhim kho cov khoom zoo, tab sis kuj ua kom qhov tseeb ntawm qhov ntom ntom.
5. Kev cuam tshuam hauv kev siv
Nkag siab txog qhov ceev ntawm benzene thiab cov yam ntxwv uas cuam tshuam nws yog qhov tseem ceeb hauv kev siv tswv yim hauv kev lag luam tshuaj. Piv txwv li, qhov ntom ntom yog qhov tseem ceeb hauv kev tsim thiab kev ua haujlwm ntawm cov reactors, cov khoom sib cais thiab cov kav dej uas txiav txim siab cov yam ntxwv ntawm cov dej ntws thiab kev ua haujlwm ntawm cov cua sov. Cov ntaub ntawv ceev kuj tseem siv dav hauv kev suav cov khoom sib npaug, uas yog qhov tseem ceeb rau kev ua kom zoo ntawm cov txheej txheem tshuaj lom neeg. Yog li ntawd, kev nkag siab zoo ntawm qhov ceev ntawm benzene thiab nws cov cuam tshuam cuam tshuam yog qhov tseem ceeb rau kev txhim kho cov khoom siv tshuaj lom neeg thiab cov khoom zoo.
Xaus
Kev soj ntsuam ntxaws ntxaws ntawm qhov ceev ntawm benzene thiab nws cov cuam tshuam cuam tshuam qhia qhov tseem ceeb ntawm cov cuab yeej ntawm lub cev no hauv kev siv tshuaj lom neeg. Cov yam ntxwv xws li qhov kub thiab txias, siab thiab purity tag nrho muaj kev cuam tshuam rau qhov ntom ntawm benzene, yog li hauv kev xyaum, tag nrho cov kev xav ntawm cov khoom no tuaj yeem pab txhim kho cov txheej txheem tsim khoom thiab ua kom cov khoom zoo. Kev nkag siab thiab kev paub txog kev paub txog kev ceev ntawm benzene yuav muab kev txhawb zog rau cov kws kho mob hauv lawv cov kev ua haujlwm.