Ammonium acetate. Kev npaj ntawm laboratory thiab muaj txoj kev. daim ntawv thov

Cov tshuaj compound NH4C2H3O2 muaj pes tsawg leeg paub nyob rau hauv dav voj voog raws li ammonium acetate. Nyob rau hauv tsos nws yog ib tug crystalline khoom pob tshab los yog dawb. Khoom rau nws yog kev npaj acetic acid. Ammonium acetate yog ua los ntawm reacting lub acid nrog ammonia. Raws li ntaub ntawv yog npaj meej muaj nyob thiab kuj pheej yig, qhov no compound yog siv raws li ib tug khoom noj khoom haus additive (E264) los yog ib tug preservative.
Cov lub cev zog stands hygroscopic. Hais tias nws muaj ammonium acetate. Kev npaj ntawm cov tshuaj yeeb dej caw nyob rau hauv laboratory tej yam kev mob nws yog tau nyob rau hauv ob peb txoj kev. Cov tshuaj tiv thaiv muaj peev xwm yuav nqa tawm nrog concentrated (glacial) acetic acid thiab ib tug carbonate ammonium (ammonium carbonate). Cov tshwm sim ntawm cov tshuaj tiv thaiv yog ammonium acetate, thiab tsis ruaj tsis khov carbonic acid, nws yog rau ib luv luv lub sij hawm yog hloov dua siab tshiab rau hauv cov pa roj carbon dioxide thiab dej.
Cov nram qab no cov tshuaj tiv thaiv yuav surging 80% acetic acid mus rau ib tug 10% ammonia (ammonia). Yuav kom cov tshuaj tiv thaiv yuav tsum tau tsawg kub. Yog nws txo qis mus rau hauv ib lub taub ntim nrog dej khov hwj nrog cov reactants, tseg nws co co kwm. Los ntawm evaporation ntawm cov filtrate, ammonium acetate.
Yuav kom ib tug thib peb cov tshuaj tiv thaiv siv looj acetic acid los yog acetonitrile. Nws yog rhuab nrog dej. Cov kev uas ua muaj daim ntawv thov nyob cov tshuaj tiv thaiv thaum ammonium acetate npaj los ntawm acetic acid los ntawm cov tshuaj tiv thaiv nrog aqueous ammonia tshuaj.

Ntawm cov kev ntawm zus tau tej cov ammonium acetate cov tshuaj tiv thaiv yuav tsum raug rho tawm, uas lub compound yog ib tug los ntawm-cov khoom nyob rau hauv qhov kev cav ntoo sib - ammonia. Tab sis lub hom phiaj tseem ceeb ntawm tshuaj tiv thaiv no - diacylated cellulose.
Ib tug tseem ceeb feature ntawm ammonium acetate yog nws muaj peev xwm decompose nyob rau hauv ib tug kub ntawm 112 ° C rau acetamide thiab dej. Qhov no cov tshuaj tiv thaiv no feem ntau yog raug nplua raws li ib qho piv txwv ntawm lub ntsev decomposition ntawm kuj tsis tshua muaj kub.
Ammonium acetate siv nyob rau hauv kev lag luam thiab nyob rau hauv laboratory tej yam kev mob raws li kev tivthaiv kua rau anti-icing. Cov zaub mov kev lag luam muaj nyob rau hauv nws ib tug zoo preservative. Nws kuj yog siv raws li ib tug reagent thaum lub sij hawm ib co hom ntawm cov organic synthesis. Kuaj kev tshawb fawb ua hauj lwm xav noj nqos tau cov ammonium acetate raws li ib tug tivthaiv uas tsis daws teeb meem thiab protein deposition.
Lub yees rau luam rau fabrics los yog nrag siv ammonium acetate. Nws yog siv nyob rau hauv qhov siv thiab ua tshuaj tua kab mob thiab lwm yam khoom ntawm tus kws kev lag luam. Tsis tas li ntawd, nws yog dav siv nyob rau hauv qhuav ntawm npaus roj hmab, yas, yas.
Kev siv ntawm ammonium acetate kom muaj lub hom phiaj yuav tsum tau kev thauj mus los thiab cia nyob rau hauv loj tagnrho. Feem ntau, lub crystalline hmoov yog ntim rau hauv ib tug tshwj xeeb woven hnab los yog daim ntawv thawv. Rau cia ntawm siv qhuav chav tsev nyob qhov twg lub substance yog nyob rau hauv ib tug kaw mob nyob rau hauv lawv cov thawj lub ntim. Cov tshuaj yeeb dej caw yog tsis lom thiab tsis muaj ib tug teeb meem mus rau lub noj qab haus huv ntawm cov neeg ua haujlwm. Ceev faj thaum kov no compound qhia tiv thaiv cov tawv nqaij thiab qhov muag.
Yog hais tias tej khoom rau ib tug mucosal nto ntawm cov thawj ntawm yog tshaj yaug nrog dej huv. Tom qab ua hauj lwm nrog acetate ammmoniem yuav tsum tau kom huv si ntxuav nrog xab npum thiab dej.
Nyob rau hauv hluav taws kub txog lub compound nyob rau hauv lo lus nug yog tsis muaj teeb meem. Nws tsis yog heev thiab yog tsis yooj yim cig. Domestic tshuaj lag luam muaj tom tso tawm ntawm tshuaj nyob rau hauv txaus ntau kom tau raws li ntau lawm xav tau kev pab. Tsis tas li ntawd, cov khoom siv ntawm ammonium acetate los ntawm txawv teb chaws. Feeb ntau, lub ntsiab importer thiab ntawm no yog Tuam Tshoj.