Puas yog cawv yog sib tov lossis sib xyaw?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Technically, cawv yog lub npe ntawm cov khoom siv hauv chav kawm uas muaj ib lossis ntau pawg hydroxyl. Anazeotrope yog ib qho sib tov ntawm ob lossis ntau dua cov kua dej uas tsis tuaj yeem hloov pauv los ntawm qhov yooj yim distillation. Lwm cov khoom lag luam, xws li isopropanol thiab acetone.

Kuj paub, yog cawv yog sib tov?

Teb thiab piav qhia: Ntshiab ethanol cawv (los ntawm nws tus kheej) yog nota sib tov ; txawm li cas los xij, lub raj mis thiab lwm yam cawv dej haus yog cov piv txwv ntawm sib tov . Toexpound, ib

Ib tug kuj yuav nug, yog vim li cas cawv yog ib tug compound? Hauv chemistry, ib cawv yog cov organic compound nyob rau hauv uas pawg hydroxyl functional (–OH) yog khi rau ib tug carbon. Lub sij hawm cawv Ameslikas xa mus rau thawj cawv ethanol (ethyl cawv ), uas yog siv los ua tshuaj thiab yog lub ntsiab cawv tam sim no nyob rau hauv cawv dej haus.

Hauv qhov no, cawv puas yog lub ntsiab lus lossis qhov sib xyaw?

Cawv yog a compound muaj cov pab pawg ahydroxyl uas txuas nrog cov pa roj carbon atom. Xav txog [-OH]. Ethyl Cawv los yog " ethanol ” yog lawv feem ntau cawv siv hauv cawv dej haus thiab kev siv tshuaj lom neeg. Ib keeb , ntawm qhov tod tes, yog hais txog ib qho atom zoo li no hauv nws cov ntaub ntawv feem ntau.

Puas yog npias sib tov lossis sib xyaw?

Tsuas yog thaum lawv sib xyaw rau ntawm qib atomic yog lawv homogeneous sib tov (los yog kev daws teeb meem). Npias yog homogeneous sib tov (kua kua) ntawm H₂O, C₂H₅OH, thiab ob peb lwm yam khoom. (Tsis muaj npias molecule. Lub molecule uas muab npias Nws cov cuab yeej tsim khoom yog ethanol.)