Cov mis ntawm ci dej qab zib. Dej qab zib: mis thov

Tej zaum kuj zoo tib yam thiab paub txij li thaum yau khoom yog yuav luag ib tug panacea rau ntau cov kab mob thiab ailments. Cia li tsis txhua leej txhua tus paub nws. Ib tug xws li compound yog li ib txwm ci dej qab zib, muab cia rau hauv txhua txee nyob rau hauv lub chav ua noj. Nws hloov tawm hais tias nws tsis yog tsuas yog ib tug txhais tau tias los txhim kho qhov zoo ntawm ci, tab sis kuj cov tshuaj, degreaser, tshuaj dawb thiab txawm decontaminating neeg sawv cev. Paub nrog cov tshuaj yeeb dej caw nyob rau hauv kom meej.

Cov tshuaj paus ntawm dej qab zib

Qhov tseeb lub npe rau qhov no kev twb kev txuas nyob rau hauv cov nqe lus ntawm Science News for KIDS - sodium bicarbonate. Muaj ib co cov npe uas yog siv nyob rau hauv lub neej txhua hnub thiab Science News for KIDS kom piav no substance:

• sodium bicarbonate;
• ci dej qab zib;
• ci dej qab zib;
• sodium bicarbonate;
• additive E 500.

Txawm li cas los, muaj ib yam ntawm lawv muaj kev cuam tshuam xwb tiag essence - ib tug dej qab zib.

Lub empirical mis

Cov mis ntawm ci dej qab zib - NaHCO _3. Hais tias yog, los ntawm qhov xwm ntawm tus tshuaj - yog ib tug ntsev ntawm carbonic acid, muaj feem xyuam rau cov qeb ntawm acid. Txij li thaum lub compound yog tsim los ntawm ib tug muaj zog alkali thiab ib tug tsis muaj zog acid, ces los ntawm hydrolysis (nyob rau hauv aqueous tov) rau alkaline cov tshuaj tiv thaiv nruab nrab. Ib tug tov ntawm ci dej qab zib nyob rau hauv cov dej muaj ib tug pH ntawm 8.1. Acid ntsev yog nkag tsim los ntawm reacting sodium hydroxide thiab carbonic acid, ib tug txheej txheem qhia los ntawm cov nram qab no kab zauv:

NaOH + H ₂ CO ₃ = NaHCO ₃ + H ₂ O

Lub empirical mis ntawm ci dej qab zib qhia tau hais tias cov zoo thiab ntau pes tsawg leeg ntawm lub compound rau lub hauv paus uas nws muaj peev xwm yuav xaus lus rau lub spatial qauv ntawm cov molecule yog zoo them ntawv yog Na ⁺ nyob rau hauv lub sab nraud teb thiab ib tug tsis zoo them ion, hydrogencarbonate HCO ₃ - nyob rau hauv rau sab hauv.

carbon atom tswj nyob ib ncig ntawm nws tus kheej peb cov pa atoms, ib tug ntawm cov uas tas ib ob daim ntawv cog lus. Tsis tas li ntawd, ib tug ntawm cov pa atoms kev cob cog rua rau lub hydrogen ntawv daim ntawv gidroksogrupp. Qhov thib peb oxygen atom nyob rau hauv daim ntawv ntawm sodium ion txuam nyob ze ntawv. Yog li, lub compensated valency ntawm txhua lub caij constituting muab compound.

lub zog

Txawm lub npe peb muab rau no yam khoom uas yuav tsis - ci dej qab zib, dej haus, carbonate, sodium bicarbonate - ib lub mis nws yog tseem yog ib qho thiab muab ib lub tswv yim ntawm lub cev muaj zog. Yog li, cov tsos ntawm tshauv - cov hmoov zoo. Nws yog xim dawb. Nws yog soluble nyob rau hauv cov dej thiab suab insoluble nyob rau hauv cov organic solvents (cawv, piv txwv li). Tawm sab nraud yog tsis decomposed. Nws pib decompose nyob rau hauv kom ambient av noo. Cov khoom ntawm tiav disintegration nrog nce kub yog sodium carbonate (nruab nrab ntsev), carbon dioxide thiab dej:

NaHCO ₃ = Na ₂ CO ₃ + CO ₂ + H ₂ O

Sodium bicarbonate muaj tsis muaj tsw, me ntsis ntsev saj, tsw nrog ib tug alkali. Thaum yaj nyob rau hauv dej, nws muab alkaline daws teeb meem ntawm sib txawv ntau.

Nyuag ntaub ntawv hais txog lub keeb kwm ntawm lub foundations thiab siv cov dej qab zib

Tus thawj cov lus qhia txog sodium bicarbonate kuj nyob rau hauv lub ancient civilization ntawm tim lyiv teb chaws. Nws yog nyob rau hauv cov chaw ob peb pas dej uas muaj tej yam ntuj tso los ntawm cov dej qab zib raug faib. Thaum qhuav ntawm lub pas dej muab dej qab zib nyob rau hauv daim ntawv ntawm cov dawb hmoov, tab sis cov neeg nws tau sau. Egyptians siv nws li ib tug tivthaiv nyob rau hauv lub chaw ua khoom ntawm txhais tau tias mummification. Cov mis ntawm ci dej qab zib ces twb tsis tau paub.

Tshwj xeeb, raws li ib tug tshuaj compound khoom tau raug kawm npaum li cas tom qab ntawd, nyob ib ncig ntawm lub XVIII caug xyoo. Yog tias thaum zaum xav nyob rau hauv no hmoov yog tsim lawm los ntawm qhov. Ceev faj muaj pes tsawg leeg tsom xam tso cai rau txiav txim seb lub zoo thiab ntau tivthaiv compound. Qhov no yog yuav ua li cas niaj hnub mis ntawm ci dej qab zib.

Great pab mus rau txoj kev loj hlob ntawm tswv yim ntawm kev teeb meem thiab cov khoom tshaaj los ntawm lawv twb qhia los ntawm Italian tus kws kho mob Tullio Simoncini. Yuav kom nws muaj lub thwmsim, cov kev tshwm sim ntawm uas dej qab zib - ib tug ua tau kev kho mob kev xaiv rau mob cancer. Txawm li cas los, rau hnub tim, yog cov ntaub ntawv, qhov no muaj tseeb muaj.

daim ntawv sau npe

Vim nws zoo muaj peev xwm yaj nyob rau hauv dej thiab hnov mob nrog acids los tsim cov tshuaj tiv thaiv cov pa roj carbon dioxide, dej qab zib yog siv nyob rau hauv ob peb lub teb ntawm kev lag luam thiab tsev neeg. Namely, xws li:

• pharmaceutics thiab tshuaj;
• cov tshuaj kev lag luam;
• teeb kev lag luam;
• khoom noj khoom haus kev lag luam.

Cia peb xav txog nyob rau hauv ntau yam txhua tus ntawm cov chaw no.

Siv nyob rau hauv cov tshuaj

Feem ntau cov tseem ceeb tshaj, yog dab tsi yog lub hauv paus ntawm kev siv nyob rau hauv cov tshuaj - yog nws muaj peev xwm rov qab ib tug aqueous-alkaline tshuav nyiaj li cas nyob rau hauv lub digestive ib ntsuj av. Tiabsis cov NaHCO ₃ koom antacid kev kho mob. Cov mis ntawm ci dej qab zib qhia lub xub ntiag ntawm hydroxide ions, ua cov kev ua ntawm neutralizing lub acidity nyob rau hauv lub cev. Yog li ntawd, feem ntau cov dej tshuaj ntawm sodium bicarbonate yog siv los mus tshem tawm cov tsos mob ntawm kub siab. Txawm li cas los, qhov no yog tsis yog tib cheeb tsam ntawm cov kab mob, qhov chaw uas lub substance yuav siv tau.

1. Nyob rau hauv cov kev kho mob ntawm mob khaub thuas ci dej qab zib relieves hnoos li txhawb liquefaction thiab tshem tawm ntawm cov hnoos los ntawm lub ntsws thiab bronchi. Tsis tas li ntawd nws yog tau ua inhalations nrog SARS.
2. Raws li ib tug bactericidal anti-inflammatory tus neeg saib xyuas thiab kuj yog siv baking sis dej qab zib. Formula nws qhia lub xub ntiag ntawm hydrogen cations H ^+, uas muab no cov nyhuv.
3. Rau cov kev kho mob ntawm cov hlab plawv tus kab mob (hypertension thiab arrhythmia) siv ib tug tsis muaj zog tshuaj ntawm sodium bicarbonate nyob rau hauv cov dej.
4. Thaum raws plab thiab ntuav, siv cov baking sis dej qab zib thiab ntsev ua ke tso cai rau koj mus sau cov dej cia ntawm lub cev thiab rov qab kho cov tsim nyog tshuav nyiaj li cas.
5. Cov tshuaj yeeb dej caw yuav ua kom puas fungal kab mob, li ntawd nws yog siv rau kev tshem tawm ntawm ko taw fungi ua douching tshuaj qhov ncauj tawm, ntxuav qhov muag inflammations ntawm conjunctiva.
6. Vim lub thaj chaw ntawm siv tshuaj dawb tso dej qab zib dentifrice.
7. Tsis muaj zog tshuaj eliminates lub pruritus ntawm daim tawv nqaij sawv pob (los yog kab tom).
8. Kev kho mob thawj zaug degree kub yus.
9. Pab lub cev ntawm hnyav hlau salts.
10. Nws tshwm sim kev nyuaj siab nyem thiab qaug zog, raws li zoo raws li tau tshem ntawm tshaj qhov hnyav los ntawm kev siv ib tug sov so da dej nrog NaHCO _3, thiab qhov tseem ceeb roj.

Cov kev pab cuam thiab kev piam sij ntawm ci dej qab zib thaum uas siv rau kev kho mob hom phiaj, nrog rau tshuaj pleev ib ce, yuav hais tias ib tug ntau. Lub ntsiab cai no yog siv ntawm qhov cuab tam, raws li zoo raws li lwm yam tshuaj - tsis tau neglected tswv yim pom zoo nyob rau hauv ntau npaum. Siv tsis raws cai yuav ua tau teeb meem rau kev noj qab nyob.

Dej qab zib: mis thiab siv nyob rau hauv cov tshuaj kev lag luam

Lub ntsiab cheeb tsam nyob rau hauv uas sodium bicarbonate yog siv, - ib tug neeg hauv tsev neeg Science News for KIDS. Dej qab zib tej zaum yuav ua raws li ib tug me me abrasive nqus tsev vacuum chaw thiab degreasing. Tsis tas li ntawd nws yog siv raws li ib tug raw khoom nyob rau hauv zus tau tej cov dyes, ua npuas ncauj thiab fluoride tebchaw. Tsis tas li ntawd, raws li nyob rau hauv NaHCO ₃ manufactured extinguishing agents.

Koj muaj peev xwm tsis xav txog tej yam dab tsi yuav tau tsim tsis muaj sodium bicarbonate tsev neeg tshuaj. Ci dej qab zib - ib tug tseem ceeb thiab tsim nyog tivthaiv rau ntau cov tshuaj syntheses.

teeb kev lag luam

Rau cov kev kho mob ntawm cov chaw nyob rau hauv qhov siv thiab ua roj hmab, roj hmab txhais qab xib thiab cov khoom siv dej qab zib. Cov mis, kev siv, kev tsim txom thiab kev pab cuam ntawm sodium bicarbonate nyob rau hauv lub teeb kev lag luam - ib lub npe rau txoj kev tshawb no. Nyob rau hauv luv luv, lub luag hauj lwm ntawm NaHCO _3, yuav siv rau qhov siv thiab ntawm textiles thiab dag tawv. Nyob rau hauv cov ntaub ntawv no, qhov puas tsuaj yog manifested nyob rau hauv cov tsos ntawm kub yus yog kev sib cuag nrog lub tshuaj yog ntev heev thiab nws ob txhais tes twb tsis muaj kev tiv thaiv. Cov kev pab yog hais tias dej qab zib - ib tug zoo ntxiv thiab degreaser rau daim tawv nqaij tanning thiab nws cov ntau lawm, raws li tau zoo raws li ib tug zoo tshuaj ua kom dawb fabrics nyob rau hauv lub textile ua lag ua luam.

khoom noj khoom haus ua lag luam

Cov mis ntawm ci dej qab zib nyob rau hauv Science News for KIDS qhia lub essence ntawm cov txheej txheem nyob rau hauv tshua nrog acids. Piv txwv li, lub nram qab no kab zauv yog piav los ntawm reacting nrog acetic acid:

NaHCO ₃ + CH ₃ COOH = CH ₃ COONa + H ₂ CO ₃

Qhov no ntaub ntawv carbonic acid, ua heev tsis ruaj tsis khov tam sim ntawd decomposes rau hauv CO ₂ thiab H ₂ O. Nws yog nyob rau no xyov txaus raws li kev tshua thiab cov kev siv ntawm sodium bicarbonate nyob rau hauv lub lag luam ua noj. Tom qab tag nrho, nws yog ib qhov tsim nyog rau zus tau tej cov ci dej qab zib tua vinegar, ntxiv sib tov rau hauv lub khob noom cookie rau nws porosity thiab zoo structuring. Dej qab zib quenching cov tshuaj tiv thaiv ntawm lub hom neutralization cov tshuaj tiv thaiv thiab yog nrog los ntawm ib tug spectacular nyhuv foaming thiab hiss.

Kev siv cov dej qab zib ua ncuav mos heev, fragrant thiab zoo nkauj, yog li cov zaub mov kev lag luam - yog ib tug ntawm lub ntsiab sectors uas tonnage siv no substance. Tsis tas li ntawd, sodium bicarbonate yog siv nyob rau hauv ci, nyob rau hauv qhov siv thiab ua ntau yam confectionery khoom. Nyob rau hauv tas li ntawd, nws yog siv los tsim roj npuas nyob rau hauv carbonated dej haus (sparkling dej, sparkling caw thiab sparkling caw, ntxhia dej).

Ci dej qab zib: yam ntxwv thiab kev kho mob. Raug mob thiab contraindications

Nyob rau hauv qhov tseeb, siv cov dej qab zib yog dav nyob rau hauv ib tug ntau yam ntawm industries thiab lub neej, raws li peb twb pom ua ntej. Nws txawv txawv curative, antibacterials, bleaches, soothing thiab kho thaj yog siv nyob rau hauv cov kev kho mob los ntawm ntau yam ailments. Txawm li cas los, raws li nrog lwm yam tshuaj noj, peb kuj muaj ib tug dej qab zib thiab cov sab nraud. Nws yuav ua mob heev thiab txaus ntshai rau kev noj qab nyob. Nws indications rau kev siv yog cuab kev, tab sis tsis muaj tsis tseem ceeb, thiab contraindications, uas peb yuav kawm txog nyob rau hauv ntau yam.

Raug mob thiab contraindications

Ib tug yuav pabneeg ib tug ob peb yooj yim yog vim li cas hais tias dej qab zib muaj peev xwm ua ib tug yeeb ncuab es ib tug phooj ywg thiab pab.

1. Nrog heev siv ntawm cov tshuaj no tshwm sim hauv ib qho acid thaws nyhuv. Qhov no yog ib tug txheej txheem nyob rau hauv uas ib tug dhau heev npaum li cas ntawm cov pa roj carbon dioxide tso nyob rau hauv lub cev, txoj hau kev nce acidity thiab muaj zog gazootvedeniyu, tsam plab.
2. Ntev kev sib cuag nrog cov hmoov yuav ua rau voos thiab pob.
3. Hu nrog qhuav dej qab zib hmoov nyob rau hauv lub ob lub qhov muag, qhov ntswg los yog lwm yam txheej nyias nyias ntawm lub cev ua cov tshuaj kub nyhiab.
4. Thaum uas siv cov hmoov rau tshuaj dawb tso cov hniav thiab deteriorates thinner hniav enamel.
5. Nquag noj ntawm NaHCO ₃ sab hauv tsev yuav ua rau ib tug kev xav ntawm xeev siab lub relentless.

Yog li ntawd, nws yog pom tseeb tias tsis tsuas yog tus zoo luag hauj lwm ua si los ntawm dej qab zib rau ib tug neeg. Cov kev pab cuam thiab harms ntawm kev kho mob - yog tsis meej xwm sib nrauj. Ua ntej lub thoob plaws siv ntawm sodium bicarbonate rau tau txais tshem ntawm ntau yam ailments, yuav tsum tau nrog ib tug kws kho mob. Yog hais tias dej qab zib yog siv nyob rau hauv lub neej txhua hnub (tu chaw, tshuaj dawb tso ntawm fabrics thiab thiaj li nyob), koj yuav tsum tsis txhob tsis saib tsis xyuas cov yooj yim tshaj plaws txhais tau tias kev tiv thaiv rau cov neeg tsis siv cov tshuaj yeeb dej caw.