Qhov sib txawv tseem ceeb ntawm naphthalene thiab p-dichlorobenzene yog tias naphthalene muaj ob lub nplhaib sib txuas nrog ib leeg, qhov p-dichlorobenzene muaj ib lub nplhaib qauv nrog cov tshuaj chlorine.
Naphthalene thiab p-dichlorobenzene yog cov organic tebchaw peb tuaj yeem categorize li aromatic compounds vim tias cov tebchaw no muaj cov qauv nplhaib nrog alternating ob daim ntawv cog lus hauv lub nplhaib.
Naphthalene yog dab tsi?
Naphthalene yog ib qho organic compound uas muaj cov tshuaj formula C10H8 Peb tuaj yeem txheeb xyuas qhov sib xyaw no ua qhov yooj yim tshaj plaws polycyclic aromatic hydrocarbon compound. Cov tshuaj no tshwm sim raws li ib tug dawb crystalline khoom uas muaj ib tug yam ntxwv tsw zoo li cov thee tar, txawm nyob rau hauv tsawg concentrations. Thaum xav txog cov qauv ntawm naphthalene, nws tau fused khub ntawm benzene rings.
Daim duab 01: Cov Qauv Tshuaj ntawm Naphthalene
Peb tuaj yeem soj ntsuam cov naphthalene molecule raws li kev sib xyaw ntawm ib khub ntawm benzene rings. Qhov no ua rau 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 tshuaj agrochemicals.
YP-Dichlorobenzene yog dab tsi?
P-dichlorobenzene yog cov organic compound uas muaj cov tshuaj formula C6H4Cl2. Lub npe tshuaj ntawm cov tshuaj no yog 1.4-dichlorobenzene vim tias ob lub chlorine atoms txuas rau lub nplhaib benzene ntawm txoj haujlwm 1 thiab 4. Nws feem ntau tshwm sim raws li cov khoom tsis muaj xim uas muaj cov npauj zoo li muaj ntxhiab tsw.
Yog tias peb saib cov qauv tshuaj ntawm p-dichlorobenzene, nws muaj lub nplhaib benzene uas muaj ob lub chlorine atoms uas tau hloov cov hydrogen atoms ntawm qhov chaw tawm tsam ntawm lub nplhaib. Cov qauv no yog hu ua "para" qauv; li no lub compound hu ua "p-dichlorobenzene".
Cov tshuaj no muaj txiaj ntsig zoo li tshuaj tua kab, tshuaj tua kab, thiab deodorant. Cov khoom siv no tuaj yeem siv los hloov cov naphthalene hauv kev tsim cov mothballs vim tias naphthalene muaj ntau dua cov nplaim taws. Tsis tas li ntawd, p-dichlorobenzene yog ib qho tseem ceeb ua ntej rau kev tsim cov tshuaj thiab thermal resistant polymer khoom, poly (p-phenylene sulfide).
Peb tuaj yeem tsim cov tshuaj no los ntawm cov tshuaj chlorination ntawm lub nplhaib benzene siv ferric chloride ua tus catalyst rau cov tshuaj tiv thaiv. Nws tuaj yeem muaj impurity ua los ntawm cov txheej txheem no, uas yog 1, 2-dichlorobenzene isomer. Yog li ntawd, peb yuav tsum tau ua kom huv si cov khoom sib tov uas siv cov txheej txheem fractional crystallization.
Qhov txawv ntawm Naphthalene thiab p-Dichlorobenzene yog dab tsi?
Naphthalene thiab p-dichlorobenzene yog cov tshuaj tsw qab organic. Qhov sib txawv tseem ceeb ntawm naphthalene thiab p-dichlorobenzene yog tias naphthalene muaj ob lub nplhaib sib txuas nrog ib leeg, thaum p-dichlorobenzene muaj ib lub nplhaib qauv nrog cov tshuaj chlorine. Ntxiv mus, lwm qhov sib txawv ntawm naphthalene thiab p-dichlorobenzene yog tias cov naphthalene yog muab los ntawm thee tar thaum p-dichlorobenzene tau los ntawm cov tshuaj chlorination ntawm benzene nplhaib siv ferric chloride ua tus catalyst rau cov tshuaj tiv thaiv.
Cov hauv qab no infographic teev qhov sib txawv ntawm naphthalene thiab p-dichlorobenzene hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – Naphthalene vs p-Dichlorobenzene
Naphthalene thiab p-dichlorobenzene yog cov tshuaj tsw qab organic. Qhov sib txawv tseem ceeb ntawm naphthalene thiab p-dichlorobenzene yog tias naphthalene muaj ob lub nplhaib sib txuas nrog ib leeg, qhov p-dichlorobenzene muaj ib lub nplhaib qauv nrog cov tshuaj chlorine.
