Sodium bicarbonate thiab Scope ntawm siv

Sodium bicarbonate (baking sis dej qab zib) yog ib tug crystalline ntsev, feem ntau hu ua dawb hmoov muaj zoo feem sib tsoo rau cov neeg feem coob. Los ntawm cov khoom no muaj ib tug xov tooj ntawm txawv: sodium bicarbonate, dej qab zib bicarbonate, sodium bicarbonate, ci dej qab zib, sodium hydrogen carbonate. Ntxhiab, muaj ib tug qab ntsev-alkaline saj. Zoo txaus dej qab zib yaj nyob rau hauv dej rau ib tug alkaline tov, nws nyob tsuas yog nyob rau tus nqi ntawm cov yaj dej qab zib.

Lub cawv sodium bicarbonate suab insoluble, tawg thiab hluav taws kev ruaj ntseg, uas tsis yog-tshuaj lom. Nyob rau hauv qhuav huab cua sodium bicarbonate tsis reacted, nyob rau hauv cov ntaub ntawv ntawm moistening zoo crystalline ntsev los yog nyob rau hauv kev sib cuag nrog dej nws reacts nrog cov pa roj carbon dioxide. Nws reacts nrog rau ib qho acid tsim lub tshiab ntsev thiab gaseous tebchaw. Thaum lub kub mus saum toj no 60 degrees lub decomposition txheej txheem, cov khoom ntawm tus txheej txheem no yog cov pa roj carbon dioxide, dej thiab sodium carbonate.

Dej qab zib, tau txais nyob rau hauv txheej membrane, yuav ua rau ua pa voos. Qhov no yuav tsum raug xam tias yog nyob rau hauv cov kev taw qhia neeg ntawm cov neeg khiav tujtaws nyob rau hauv ib qho chaw uas muaj plua tshauv sodium bicarbonate. Sodium bicarbonate muaj tswv yim daim ntawv sau npe nyob rau hauv cov tshuaj, khoom noj khoom haus, tshuaj, textile, kws thiab metallurgical industries. Nws yog dav siv nyob rau hauv lub neej txhua hnub ntawm cov pejxeem.

Cov zaub mov kev lag luam siv sodium bicarbonate nyob rau hauv zus tau tej cov khob cij thiab confectionery, haus kev npaj.

Bicarb yog li disintegrant thaum lub sij hawm ci breads (dej qab zib siv tej khoom vaj tse thaum rhuab decompose rau hauv cheebtsam hauv r. H. Carbon dioxide). Ib tug zoo neutralizing acidic nruab nrab yog sodium bicarbonate. Formula NaHCO3 nws yog lub npe hu mus rau tag nrho, uas ib zaug kawm Science News for KIDS. Txawm nyob rau hauv lub xyoo pua puv 19 German tus kws kho mob Boulleret nrhiav tau hais tias ci dej qab zib muaj peev xwm tshem tawm ib tug burning nov ntawm nqaij tawv nyob rau hauv cov hlab pas nyob rau high school acidity. Diav baking sis dej qab zib, yaj nyob rau hauv 150 c. dej, muaj peev xwm sawv ntawm xa kub siab.

Lub peev xwm ntawm sodium bicarbonate daws mus rau neutralize lub kev txiav txim ntawm acid pib yuav tsum tau siv qhov twg nws yog tsim nyog los tshem tawm cov acid daig nyob rau hauv lub cev (acid hlawv, plev thiab yoov tshaj cum m. P.). qhuav ci dej qab zib muaj peev xwm yuav siv tau los kho tshiab kub yus. dej qab zib tov xyaum raws li ib tug tsis muaj zog antiseptic intoxication, kab mob, mob ntshav qab zib thiab. Nws tseem yuav pab nyob rau hauv inflammatory kev ntawm lub qhov muag, mus fluidize kua nyob rau hauv lub bronchi, qhov ncauj yaug, thiab lwm yam kab mob.

Txawm li cas los, sodium hydrogencarbonate mob thawj coj tej zaum yuav ua rau kev phiv nyob rau hauv daim ntawv ntawm cov mob taub hau, ntuav, poob qab los noj mov, thiab lwm yam Kws txawj tsis pom zoo kom siv ntawm ib tug ntau ntawm cov dej qab zib neeg uas kub siab.

Muaj contraindications, hais txog tej uas yuav muaj nyob tom qab kev noj kev haus ib tug kws kho mob.

Tshuaj kev lag luam siv sodium hydrogencarbonate nyob rau hauv qhov siv thiab ua ib tug ua npuas ncauj sib txawv ntawm cov dyes, tsev neeg tshuaj, tshuaj fluoride reagents.

Nrog cov dej qab zib yog tom ntawm sib cais txheej txheem hydrogen sulfide thiab cov pa roj carbon dioxide los ntawm cov roj sib tov. Thiab thov nws nyob rau hauv qhov siv thiab ua particulate fillers nyob rau hauv lub tua hluav taws thiab hluav taws extinguishing systems. Sodium hydrogen thaum extinguishing qhov hluav taws kub los ntawm cov pa roj carbon dioxide hloov zuj zuj thaum lub sij hawm cov cua kub, txiag kev nkag tau ntawm oxygen mus rau lub combustion hearth. Teeb kev lag luam yog siv cov khoom no nyob rau hauv qhov siv thiab ua cov khoom cua tawv thiab roj hmab txhais qab xib rau, rau tag ntawm textile fabrics thiab tawv tanning.

Nyob rau hauv ib tug domestic puag ncig sis dej qab zib muaj tswv yim daim ntawv thov rau qhov kev tshem tawm ntawm quav hniav los ntawm kev siv rau cov plaub hau mousse, cua txias thiab thiaj li nyob. Ua li no, tsuas ntxiv mus rau tsuaj zawv plaub hau. Tej zaum yuav tshem tawm cov sau rog nyob rau hauv cov plaub hau siv "qhuav tsuaj zawv plaub hau" rau lub hom phiaj no yog thov rau cov plaub hau keeb kwm ib me ntsis dej qab zib, combed thiab kho nrog kub plaub hau tshuab. Ib tug tuab muab tshuaj txhuam ntawm dej thiab sodium (1: 3) tshem tawm qhov teeb meem ntawm daim tawv nqaij ntxhib rau lub heels thiab luj tshib. Nyob rau hauv enamelware yooj yim mus tshem tawm cov pa roj carbon deposits siv ib tug tov ntawm ci dej qab zib.