Qhov sib txawv tseem ceeb ntawm chloroform thiab dichloromethane yog tias chloroform muaj peb chlorine atoms ib molecule, whereas dichloromethane muaj ob chlorine atoms ib molecule.
Chloroform thiab dichloromethane yog organochlorine molecules uas muaj cov atomicity zoo sib xws thiab cov duab geometry lossis cov duab molecular.
YChloroform yog dab tsi?
Chloroform yog cov organic compound uas muaj cov tshuaj CHCl3 Nws yog ib qho tseem ceeb ua tshuaj loog. Lub npe IUPAC ntawm cov tshuaj no yog trichloromethane. Nws yog cov kua uas tsis muaj xim thiab ntom ntom uas muaj ntxhiab tsw qab. Chloroform yog tsim nyob rau hauv ib tug loj teev raws li ib tug precursor rau ua PTFE. Tsis tas li ntawd, feem ntau ntawm cov chloroform nyob rau hauv ib puag ncig (kwv yees li 90%) yog vim emissions ntawm natural origin. Piv txwv li, ntau hom seaweed thiab fungi tsim cov compound no thiab tso tawm rau hauv qhov chaw.
Cov molar loj ntawm chloroform yog 119.37 g / mol, thiab nws zoo li cov kua tsis muaj xim ntawm chav tsev kub. Cov kua no muaj qhov hnyav ethereal tsw. Nws cov ntsiab lus melting yog -63.5 ° C, thiab qhov kub ntawm 61.15 ° C. Ntxiv mus, chloroform decomposes ntawm 450 ° C. Cov molecule no muaj tetrahedral geometry.
Daim duab 01: Cov Qauv Tshuaj ntawm Chloroform
Ntawm qhov ntsuas kev lag luam, peb tuaj yeem tsim cov khoom sib xyaw no los ntawm kev sib xyaw ntawm cov tshuaj chlorine thiab chloromethane (lossis qee zaum peb siv methane thiab). Thaum cua sov, ib qho dawb radical halogenation tshwm sim ntawm 400-500 ° C. Qhov no tsim chlorinated compounds ntawm chloromethane (los yog methane), uas tawm los chloroform. Cov tshuaj no tuaj yeem dhau mus ntxiv chlorination, tsim carbon tetrachloride. Txawm li cas los xij, cov khoom kawg ntawm cov tshuaj tiv thaiv no yog kev sib xyaw ntawm chloromethanes peb tuaj yeem sib cais ntawm distillation thiaj li tau txais chloroform.
Muaj ntau yam kev siv chloroform. Nws yog ib qho tseem ceeb raws li cov kuab tshuaj vim hais tias cov hydrogen atom nyob rau hauv cov molecule no yuav undergo hydrogen bonding. Peb tuaj yeem siv nws ua reagent rau ntau cov tshuaj tiv thaiv ib yam nkaus. Piv txwv li: ua ib qhov chaw ntawm dichlorocarbene pawg. Qhov tseem ceeb tshaj, chloroform yog qhov paub zoo rau nws cov tshuaj loog.
Dichloromethane yog dab tsi?
Dichloromethane yog cov organic compound uas muaj cov tshuaj CH2Cl2 Nws yog ib qho organochlorine compound, thiab peb tuaj yeem txhais nws li DCM. Cov tshuaj no tshwm sim raws li cov kua tsis muaj xim tsis muaj xim uas muaj chloroform zoo li qab zib tsw. Dichloromethane feem ntau yog siv los ua cov kuab tshuaj. Cov kua no tsis yog miscible nrog dej txawm tias nws yog ib qho polar compound. Txawm li cas los xij, nws tuaj yeem sib xyaw nrog ntau lwm cov kuab tshuaj organic.
Daim duab 02: Cov qauv tshuaj ntawm Dichloromethane
Muaj qee qhov chaw ntuj tsim ntawm dichloromethane, uas suav nrog cov chaw dej hiav txwv, macroalgae, cov av ntub dej, thiab cov roob hluav taws. Txawm li cas los xij, peb tuaj yeem pom tias feem ntau ntawm cov dichloromethane hauv ib puag ncig yog vim muaj kev lag luam emissions. Peb tuaj yeem tsim dichloromethane los ntawm kev kho chloromethane lossis methane nrog cov roj chlorine ntawm qhov kub thiab txias.
Qhov txawv ntawm Chloroform thiab Dichloromethane yog dab tsi?
Chloroform thiab dichloromethane yog organochlorine molecules. Qhov sib txawv tseem ceeb ntawm chloroform thiab dichloromethane yog tias chloroform muaj peb chlorine atoms ib molecule, whereas dichloromethane muaj ob chlorine atoms ib molecule. Ntxiv mus, chloroform tuaj yeem tsim los ntawm cua sov sib xyaw ntawm chlorine thiab chloromethane, thaum dichloromethane tuaj yeem tsim los ntawm kev kho cov chloromethane lossis methane nrog cov roj chlorine ntawm qhov kub thiab txias.
Cov duab hauv qab no qhia qhov sib txawv ntawm chloroform thiab dichloromethane hauv daim ntawv teev npe.
Summary – Chloroform vs Dichloromethane
Hauv luv luv, chloroform thiab dichloromethane yog organochlorine molecules. Qhov sib txawv tseem ceeb ntawm chloroform thiab dichloromethane yog tias chloroform muaj peb chlorine atoms ib molecule, whereas dichloromethane muaj ob chlorine atoms ib molecule.
