Cov txheej txheem:

Kev siv cov carboxylic acid yog dab tsi?
Kev siv cov carboxylic acid yog dab tsi?

Video: Kev siv cov carboxylic acid yog dab tsi?

Video: Kev siv cov carboxylic acid yog dab tsi?
Video: Kev Hlub Tsis Yog Thawj Tug Daim 28 hhmoob 3d 2024, Kaum ib hlis
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Carboxylic acid derivatives muaj ntau yam kev siv. Piv txwv li, ntxiv rau nws siv raws li ib tug tshuaj tua kab mob, formic kua qaub , qhov yooj yim tshaj plaws carboxylic acid , yog ua hauj lwm nyob rau hauv textile kev kho mob thiab raws li ib tug kua qaub txo tus neeg sawv cev. Acetic kua qaub yog feem ntau siv hauv kev tsim cov cellulose plastics thiab esters.

Kuj tseem paub yog, vim li cas carboxylic acids tseem ceeb?

Carboxylic acids yog thiab tseem ceeb nyob rau hauv kev tsim cov roj, crayons, thiab plastics. Cov tshuaj sib xyaw nrog cov carboxyl pawg kuj tau yooj yim hloov mus rau cov tebchaw hu ua esters, uas muaj cov hydrogen atom ntawm pawg carboxyl hloov nrog ib pawg uas muaj carbon thiab hydrogen atoms.

Ib yam li ntawd, pawg carboxyl yog dab tsi? Hauv chemistry, cov pawg carboxyl yog ib qho organic, ua haujlwm pab pawg muaj cov pa roj carbon atom uas yog ob npaug rau cov pa oxygen atom thiab sib koom ua ke rau hydroxyl pab pawg . Lwm txoj hauv kev los saib nws yog raws li carbonyl pab pawg (C = O) uas muaj hydroxyl pab pawg (O-H) txuas rau carbon atom.

Ib yam li ntawd, qhov piv txwv ntawm carboxylic acid yog dab tsi?

A carboxylic acid yog ib qho organic compound uas muaj a carboxyl pawg (C(=O)OH). Tseem ceeb piv txwv suav nrog cov amino kua qaub thiab acetic kua qaub . Deprotonation ntawm a carboxyl pab pawg muab cov carboxylate anion.

Dab tsi yog kev siv ntawm alkanoic acid?

Cov ntsiab lus hauv qab no yuav hais txog lwm yam kev siv tseem ceeb ntawm carboxylic acids:

  • Kev tsim cov xab npum xav tau cov roj ntsha ntau dua.
  • Kev lag luam zaub mov siv ntau cov organic acids rau kev tsim cov dej qab zib, khoom noj khoom haus thiab lwm yam.
  • Hauv kev lag luam kws tshuaj organic acids tau siv ntau yam tshuaj xws li tshuaj aspirin, phenacetin thiab lwm yam.

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