Qhov sib txawv tseem ceeb ntawm biphenyl thiab naphthalene yog tias biphenyl yog tsim los ntawm kev sib txuas ob pawg phenyl los ntawm ib qho kev sib cog lus, hos naphthalene yog tsim los ntawm kev sib xyaw ntawm ob lub nplhaib benzene.
Biphenyl yog cov organic compound uas tshwm sim raws li cov xim tsis muaj kob, thaum naphthalene yog cov organic compound uas muaj cov tshuaj formula C10H8.
Biphenyl yog dab tsi?
Biphenyl yog ib qho organic compound uas tshwm sim raws li cov xim tsis muaj kob. Tshwj xeeb, cov tebchaw uas muaj cov pab pawg ua haujlwm biphenyl tsawg dua ib qho hydrogen yuav siv nws cov npe ua "xenyl" lossis "diphenyly.” Cov khoom no muaj ib qho txawv, tsw qab ntxiag. Qhov no yog vim nws yog ib qho muaj ntxhiab hydrocarbon uas muaj cov qauv molecular (C6H5) 2.
Cov biphenyl compound yog ib qho tseem ceeb raws li cov khoom pib rau kev tsim cov polychlorinated biphenyl, uas yog dav siv tau raws li cov kua dej dielectric thiab cov neeg ua haujlwm kub hloov. Ntxiv mus, nws yog ib qho nruab nrab rau kev tsim cov tswv ntawm lwm cov organic tebchaw, suav nrog emulsifiers, optical brighteners, cov khoom tiv thaiv qoob loo, thiab plastics.
Cov khoom no tsis yog dej-soluble. Txawm li cas los xij, nws yog soluble hauv qee cov organic solvents. Ib lub molecule ntawm biphenyl muaj ob lub nplhaib sib txuas phenyl, uas ua rau qhov sib txawv ntawm cov dej ntawm cov tshuaj no hauv cov kuab tshuaj. Lawm, biphenyl tshwm sim nyob rau hauv cov thee tar, roj av, thiab natural gas. Yog li ntawd, peb tuaj yeem cais nws los ntawm qhov chaw los ntawm distillation. Industrially, nws yog tsim raws li ib tug byproduct ntawm lub dealkylation ntawm toluene rau zus tau tej cov methane.
Naphthalene yog dab tsi?
Naphthalene yog cov organic compound uas muaj cov tshuaj formula C10H8. Nws yog ib qho yooj yim los txheeb xyuas qhov sib xyaw no ua qhov yooj yim tshaj plaws polycyclic aromatic hydrocarbon compound. Cov tshuaj no tuaj yeem pom tau los ua cov khoom siv dawb crystalline uas muaj cov yam ntxwv tsw zoo ib yam li cov thee tar, txawm tias muaj tsawg heev. Thaum xav txog cov qauv ntawm naphthalene, nws tau fused khub ntawm benzene rings.
A naphthalene molecule nyhav tshwm sim raws li kev sib xyaw ntawm ib khub ntawm benzene rings. Qhov no ua rau muaj kev faib tawm ntawm qhov sib xyaw no ua benzenoid polycyclic aromatic hydrocarbon lossis PAH. Muaj yim carbon atoms uas tsis sib koom ntawm ob lub nplhaib. Txhua yam ntawm yim carbon atoms muaj ib hydrogen atom ib carbon atom. Nyob rau hauv lub nomenclature ntawm no naphthalene molecule, yim carbon atoms yog suav los ntawm 1 mus rau 8 nyob rau hauv ib tug ib ntus nyob ib ncig ntawm lub perimeter ntawm lub molecule. Cov lej no pib nrog cov pa roj carbon atom uas nyob ib sab ntawm ib qho sib koom. Feem ntau, cov pa roj carbon atoms sib koom suav nrog 4a thiab 8a.
Naphthalene molecule muaj cov qauv qauv. Txawm li cas los xij, tsis zoo li hauv lub nplhaib benzene, C-C daim ntawv cog lus hauv cov molecule no muaj qhov ntev sib txawv. Peb tuaj yeem pom qhov sib txawv no los ntawm X-ray diffraction, thiab nws zoo ib yam nrog valence daim ntawv cog lus qauv hauv naphthalene.
Naphthalene tshuaj muaj txiaj ntsig zoo ua ntej rau lwm cov tshuaj sib xyaw ua ke, rau kev tsim cov phthalic anhydride, ntau azo dyes, tshuaj tua kab, thiab lwm yam khoom siv agrochemicals.
Dab tsi zoo sib xws ntawm Biphenyl thiab Naphthalene?
- Biphenyl thiab Naphthalene yog cov tshuaj tsw qab.
- Ob leeg muaj lub nplhaib uas muaj ntxhiab ua ke rau ib leeg.
- Lawv muaj ntxhiab tsw qab.
Qhov txawv ntawm Biphenyl thiab Naphthalene yog dab tsi?
Biphenyl thiab naphthalene yog ob yam tshuaj muaj feem xyuam thiab zoo sib xws. Qhov sib txawv tseem ceeb ntawm biphenyl thiab naphthalene yog biphenyl yog tsim los ntawm kev sib txuas ntawm ob pawg phenyl los ntawm ib daim ntawv cog lus ib leeg, hos naphthalene yog tsim los ntawm kev sib xyaw ntawm ob lub nplhaib benzene.
Cov hauv qab no qhia txog qhov sib txawv ntawm biphenyl thiab naphthalene hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Biphenyl vs Naphthalene
Biphenyl yog cov organic compound uas tshwm sim raws li cov xim tsis muaj kob, thaum naphthalene yog cov organic compound uas muaj cov tshuaj formula C10H8. Qhov sib txawv tseem ceeb ntawm biphenyl thiab naphthalene yog tias biphenyl yog tsim los ntawm kev sib txuas ntawm ob pawg phenyl los ntawm ib qho kev sib cog lus, thaum naphthalene yog tsim los ntawm kev sib xyaw ntawm ob lub nplhaib benzene.
