Qhov Tseem Ceeb - Hexane vs Cyclohexane
Txawm tias, ob qho tib si hexane thiab cyclohexane yog los ntawm tsev neeg alkane, lawv lub cev thiab tshuaj lom neeg tsis zoo sib xws. Qhov sib txawv tseem ceeb ntawm hexane thiab cyclohexane yog tias hexane yog acyclic alkane thaum cyclohexane yog cyclic alkane nrog lub nplhaib qauv. Lawv ob leeg muaj rau carbon atoms, tab sis ib tug txawv tus naj npawb ntawm hydrogen atoms. Qhov no ua rau qhov sib txawv ntawm lawv cov qauv molecular thiab lwm yam khoom. Ob leeg siv los ua cov kuab tshuaj organic, tab sis lwm daim ntawv thov kev lag luam yog tshwj xeeb rau ob leeg.
Hexane yog dab tsi?
Hexane (tseem hu ua n-hexane) yog cov xim tsis muaj xim, meej, muaj zog heev, cov kua roj vanish uas muaj ntxhiab tsw zoo li roj av. Nws yog ib qho aliphatic hydrocarbon uas yog tsim los ntawm cov khoom siv los ntawm cov txheej txheem ntawm cov roj refining. Nws yog insoluble nyob rau hauv dej thiab tsawg ntom dua dej, tab sis nws cov vapor yog hnyav dua huab cua. Hexane muaj zog heev nrog qee yam tshuaj xws li kua chlorine, cov pa oxygen, thiab sodium hypochlorite. Nws yog tshuaj lom neeg thiab ua rau mob hnyav thiab mob ntev nyob ntawm qhov raug.
Molecular Structure ntawm Hexane
YCyclohexane yog dab tsi?
Cyclohexane yog cyclic alkane nrog ib lub nplhaib qauv. Nws yog ib qho ntshiab, tsis muaj xim, tsis muaj polar organic kua nrog ib tug me me, qab zib roj av zoo li tsw uas yog dav siv los ua ib qho hnyav hauv cov chaw kuaj tshuaj. Cyclohexane yog ib qho teeb meem thiab muaj kev phom sij rau tib neeg thiab tsiaj txhu, thiab nws tseem suav tias yog ib puag ncig kev puas tsuaj. Nws yog dej insoluble kua, tab sis dissolves nyob rau hauv methanol, ethanol, ether, acetone, benzene, ligroin, carbon tetrachloride.
Qhov txawv ntawm Hexane thiab Cyclohexane yog dab tsi?
Molecular Formula thiab Structure:
Hexane: Cov mis molecular ntawm hexane yog C6H14 thiab nws raug suav tias yog ib qho saturated hydrocarbon. Nws muaj cov qauv ncaj nraim molecular raws li qhia ua ntej.
Cyclohexane: Cov mis molecular ntawm cyclohexane yog C6H12 Nws muaj lub nplhaib qauv uas muaj tag nrho cov carbon atoms zoo sib xws. Txhua cov pa roj carbon atom yog sib txuas rau lwm ob lub pa roj carbon atom thiab ob lub hydrogen atoms. Cyclhexane yog unsaturated hydrocarbon molecule.
Siv:
Hexane: Hexane tau dav siv los ua cov kuab tshuaj kom tshem tawm cov roj noj tau los ntawm cov zaub thiab noob, thiab nrog rau cov tshuaj ntxuav. Nws kuj yog siv los tsim cov thinner hauv kev lag luam xim thiab siv los ua tshuaj lom neeg nruab nrab.
Cyclohexane: Ntshiab cyclohexane feem ntau yog siv los ua cov kuab tshuaj; Tsis tas li ntawd, nws yog siv nyob rau hauv nylon kev lag luam los tsim precursors xws li adipic acid thiab caprolactam, los tsim cov xim tshem tawm thiab lwm yam tshuaj.
Cov Teebmeem Kev Noj Qab Haus Huv:
Hexane: Qhov raug rau hexane ua rau mob hnyav (lub sijhawm luv) thiab mob ntev (ntev) teeb meem nyob ntawm theem raug thiab lub sijhawm. Yog tias ib tug neeg nqus tau hexane siab rau lub sijhawm luv luv, nws tuaj yeem ua rau mob me me hauv nruab nrab paj hlwb (CNS) xws li kiv taub hau, giddiness, xeev siab me ntsis, thiab mob taub hau. Kev raug mob rau hexane nyob rau hauv cov huab cua ua rau cov neeg mob polyneuropathy, nrog loog loog ntawm qhov kawg, cov leeg tsis muaj zog, qhov muag tsis pom kev, mob taub hau, thiab qaug zog. Tsis muaj pov thawj pom tias nws muaj cov teebmeem carcinogenic hauv tib neeg lossis tsiaj.
Cyclohexane: Nws yog tshuaj lom neeg; inhalation ntawm cyclohexane ua rau mob taub hau, kiv taub hau, tsaug zog, tsis sib haum xeeb, thiab euphoria. Kev noj haus yuav ua rau xeev siab, ntuav thiab qee zaus raws plab. Kev raug mob dermal ua rau khaus ntawm daim tawv nqaij thiab cov teeb meem loj xws li ziab thiab tawg tuaj yeem tshwm sim vim qhov kev txiav txim siab yog tias nws tiv tauj ntau zaus lossis ntau lub sijhawm ntev. Ocular exposure ua rau muaj teeb meem loj xws li mob, blepharospasm (tsis txhob kaw lub qhov muag), lacrimation (lubricating lub qhov muag nyob rau hauv cov lus teb rau ib qho irritation), conjunctivitis (mob ntawm lub qhov muag conjunctiva), palpebral edema (o ntawm daim tawv muag.) thiab photophobia (hnyav heev rau lub teeb).
