Txoj hauv kev zoo tshaj plaws kom paub qhov txawv ntawm ethanal thiab propanal yog iodoform test; Ethanal teb rau qhov kev sim iodoform qhov twg propanal tsis teb rau qhov ntsuas iodoform.
Ethanal thiab propanal yog cov aldehyde yooj yim. Lawv txawv ntawm ib leeg raws li tus naj npawb ntawm cov pa roj carbon atoms nyob rau hauv lawv cov molecules; yog li ntawd, lawv muaj cov tshuaj lom neeg thiab lub cev sib txawv thiab. Ethanal yog cov kua tsis muaj xim nrog cov ntxhiab tsw ntxhiab thaum propanal yog cov kua tsis muaj xim, nplaim taws muaj cov ntxhiab tsw qab me ntsis.
Ethanal yog dab tsi
Ethanal lossis acetaldehyde yog cov organic compound uas muaj cov tshuaj formula CH3CHO. Cov tshuaj no yog tsim los ntawm ib pab pawg methyl txuas nrog aldehyde functional pawg; Yog li, peb tuaj yeem sau nws li MeCHO qhov twg Kuv hais txog Methyl. Qhov no yog ib qho tseem ceeb aldehyde compound uas tshwm sim dav hauv cov xwm txheej, piv txwv li. tshwm sim nyob rau hauv kas fes, qhob cij, thiab txiv hmab txiv ntoo siav. Txawm li cas los xij, nws kuj yog tsim los ntawm cov nplai loj rau kev lag luam. Lwm txoj hauv kev lom neeg muaj nyob rau nws qhov kev npaj; Txoj hauv kev no suav nrog qee qhov oxidation ntawm ethanol los ntawm lub siab enzyme cawv dehydrogenase thiab qhov kev npaj no pab cov hangover tom qab haus cawv.
Daim duab 01: Cov qauv ntawm Ethanal Molecule
Nyob rau hauv chav tsev kub thiab siab, ethanal tshwm sim raws li cov kua tsis muaj xim. Qee qhov tseeb ntawm cov tshuaj no muaj raws li hauv qab no:
- Tshuaj formula yog C2H4O
- Molar mass yog 44.053 g/mol.
- Zoo ua kua tsis muaj xim.
- Cov tshuaj no muaj ntxhiab tsw ntxhiab.
- Lub ntsiab lus melting yog -123.37 degrees Celsius.
- Boiling point yog 20.0 degrees Celsius.
- Muscible nrog dej, ethanol, ether, benzene, toluene, thiab lwm yam.
- Cov molecule muaj trigonal planar nyob ib ncig ntawm carbonyl carbon atom thiab tetrahedral geometry nyob ib ncig ntawm methyl carbon
Muaj ntau yam kev siv ethanal, suav nrog nws lub luag haujlwm ua tus thawj coj rau kev tsim cov acetic acid, ua cov khoom pib hauv kev sib txuas ntawm 1-butanol, perfumes, flavorings, aniline dyes, plastics, hluavtaws roj hmab, thiab lwm yam.
Propanal yog dab tsi?
Propanal lossis propionaldehyde yog ib qho yooj yim aldehyde organic compound uas muaj cov tshuaj formula CH3CH2CHO. Qhov no yog tus tswv cuab thib peb ntawm aldehyde series. Peb tuaj yeem soj ntsuam cov khoom no ua cov kua tsis muaj xim, nplaim taws muaj cov ntxhiab tsw qab me ntsis.
Daim duab 02: Cov Qauv Tshuaj ntawm Propanal
Thaum xav txog kev tsim cov propanal, peb tuaj yeem tsim cov khoom sib xyaw no los ntawm hydroformylation ntawm ethylene. Txhua xyoo, txoj kev no yog siv los tsim ntau txhiab tons ntawm propanal. Tsis tas li ntawd, muaj qee txoj hauv kev kuaj peb tuaj yeem siv los ua cov tshuaj no, xws li oxidation ntawm 1-propanol nrog kev sib xyaw ntawm sulfuric acid thiab potassium dichromate.
Muaj ntau qhov kev siv ntawm propanal suav nrog nws siv los ua ib qho precursor rau trimethylolethane (ib triol), synthesis ntawm ob peb hom aroma compounds xws li helional, txo ntawm propanal los tsim propanol thiab oxidation ntawm propanal muab propionic acid, thiab lwm yam.
Iodoform Test yog dab tsi
Iodoform xeem yog ib qho tseem ceeb analytical xeem uas yog siv los txheeb xyuas cov organic tebchaw uas muaj carbonyl carbon cov chaw uas txuas nrog ib pawg methyl. Hauv lwm lo lus, qhov kev xeem txheeb xyuas -C(=O)-CH3 chaw. Cov tshuaj tiv thaiv tshuaj siv nyob rau hauv qhov kev xeem no suav nrog iodine, lub hauv paus thiab cov qauv tshuaj ntsuam xyuas uas muab cov xim daj daj yog tias tsis paub qhov sib xyaw muaj cov qauv tshuaj saum toj no. Ntxiv mus, qhov tshuaj tiv thaiv no muab ib qho tshuaj tua kab mob. Ethanal molecule muaj cov carbonyl carbon sib txuas rau ib pawg methyl tab sis tsis muaj cov qauv zoo li no hauv propanal, yog li peb tuaj yeem yooj yim paub qhov txawv ntawm ethanal thiab propanal siv qhov kev sim no.
Yuav Ua Li Cas Sib Txawv Ntawm Ethanal thiab Propanal
Ethanal thiab propanal yog aldehyde organic compounds. Txoj hauv kev zoo tshaj plaws kom paub qhov txawv ntawm ethanal thiab propanal yog los ntawm kev ua iodoform xeem. Tethanal teb rau qhov kev xeem iodoform thaum propanal tsis teb rau iodoform xeem. Ntxiv mus, ethanal muaj ib qho ethereal tsw thaum propanal muaj ib tug fruity thiab pungent tsw. Ethanal yog tsim los ntawm oxidation ntawm ethylene los ntawm Wacker txheej txheem thaum propanal yog industrially tsim los ntawm hydroformylation ntawm ethylene.
Cov hauv qab no infographic tabulates qhov sib txawv tseem ceeb ntawm ob lub tebchaw uas yuav pab tau kom paub qhov txawv ntawm ethanal thiab propanal.
Summary – Ethanal vs Propanal
Ethanal thiab propanal yog aldehydes muaj ntau tus lej ntawm carbon atoms ib molecule. Txoj hauv kev zoo tshaj plaws kom paub qhov txawv ntawm ethanal thiab propanal yog los ntawm kev ua iodoform xeem. Tethanal teb rau qhov kev xeem iodoform thaum propanal tsis teb rau iodoform xeem.
