Chaw Tsim Khoom Zoo Tus Nqi Sodium Bicarbonate CAS: 144-55-8

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Sodium bicarbonate, uas yog cov khoom sib xyaw uas feem ntau hu ua baking soda, muaj nyob rau hauv cov khoom dawb, tsis muaj ntxhiab, thiab crystalline. Nws tshwm sim ntuj tsim cov mineral nahcolite, uas tau txais nws lub npe los ntawm nws cov mis tshuaj los ntawm kev hloov "3" hauv NaHCO3 nrog qhov kawg "lite." Lub hauv paus tseem ceeb ntawm nahcolite hauv ntiaj teb yog Piceance Creek Basin hauv sab hnub poob Colorado, uas yog ib feem ntawm Green River loj dua. Sodium bicarbonate yog rho tawm los ntawm kev siv cov tshuaj mining los ntawm kev twj dej kub los ntawm cov qhov dej txhaj tshuaj kom yaj nahcolite los ntawm Eocene txaj qhov twg nws tshwm sim 1,500 txog 2,000 ko taw hauv qab ntawm qhov chaw. Cov sodium bicarbonate yaj raug pumped mus rau saum npoo qhov twg nws raug kho kom rov qab tau NaHCO3 los ntawm cov tshuaj. Sodium bicarbonate kuj tseem tuaj yeem tsim los ntawm cov trona deposits, uas yog qhov chaw ntawm sodium carbonates (saib Sodium Carbonate).

Cov Khoom Siv Tshuaj: Sodium bicarbonate, NaHC03, tseem hu ua sodium acid carbonate thiab baking soda, yog cov khoom dawb crystalline uas yaj tau hauv dej. Nws muaj qhov saj alkaline, poob carbon dioxide ntawm 270 ° C (518 ° F). Thiab siv rau hauv kev npaj zaub mov. Sodium bicarbonate kuj pom tias siv ua tshuaj, tshuaj tiv thaiv butter, hauv cov khoom siv ceramics, thiab tiv thaiv pwm ntoo.

Synonym: Sodium bicarbonate, GR, ≥99.8%; Sodium bicarbonate, AR, ≥99.8%; Sodium bicarbonate txheem kua; Natrium Bicarbonate; SODIUM BICARBONATE PWD; Sodium bicarbonate xeem kua (ChP); Sodium bicarbonate Chaw tsim tshuaj paus; TSQN

CAS:144-55-8

EC No.:205-633-8

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Cov ntawv thov ntawm Sodium Bicarbonate

1. Sodium bicarbonate, siv ua baking soda thiab baking powder, yog cov khoom ua kom cov poov xab feem ntau. Thaum baking soda, uas yog ib yam alkaline, raug ntxiv rau hauv cov khoom sib tov, nws reacts nrog cov khoom xyaw acid kom tsim cov pa roj carbon dioxide. Cov tshuaj tiv thaiv tuaj yeem sawv cev rau: NaHCO3(s) + H+ → Na+(aq) + H2O(l) +CO2(g), qhov twg H+ yog muab los ntawm cov kua qaub. Cov hmoov baking muaj baking soda ua cov khoom xyaw tseem ceeb nrog rau cov kua qaub thiab lwm yam khoom xyaw. Nyob ntawm cov qauv, cov hmoov baking tuaj yeem tsim cov pa roj carbon dioxide sai sai ua ib qho hmoov lossis ua ntu zus, zoo li nrog cov hmoov ob npaug. Baking soda kuj tseem siv ua qhov chaw ntawm cov pa roj carbon dioxide rau cov khoom noj uas muaj carbonated thiab ua ib qho buffer. Ntxiv rau baking, baking soda muaj ntau yam siv hauv tsev. Nws yog siv los ua tshuaj ntxuav dav dav, tshuaj tshem ntxhiab tsw, tshuaj antacid, tshuaj tua hluav taws, thiab hauv cov khoom siv tus kheej xws li tshuaj txhuam hniav. Sodium bicarbonate yog lub hauv paus tsis muaj zog hauv cov kua dej, nrog pH ntawm kwv yees li 8. Cov bicarbonate ion (HCO3-) muaj cov khoom amphoteric, uas txhais tau tias nws tuaj yeem ua haujlwm ua acid lossis lub hauv paus. Qhov no muab baking soda muaj peev xwm buffering thiab muaj peev xwm neutralize ob qho tib si acids thiab bases. Cov ntxhiab tsw ntawm cov zaub mov uas tshwm sim los ntawm acidic lossis basic compounds tuaj yeem neutralize nrog baking soda rau hauv cov ntsev tsis muaj ntxhiab. Vim tias sodium bicarbonate yog lub hauv paus tsis muaj zog, nws muaj peev xwm ntau dua los neutralize cov ntxhiab tsw acid.
Qhov kev siv sodium bicarbonate thib ob loj tshaj plaws, uas suav txog kwv yees li 25% ntawm tag nrho cov khoom tsim tawm, yog siv ua khoom noj ntxiv rau kev ua liaj ua teb. Hauv cov nyuj nws pab tswj cov pH hauv rumen thiab pab zom cov fiber; rau cov qaib nws pab tswj cov electrolyte sib npaug los ntawm kev muab sodium rau hauv cov zaub mov noj, pab cov qaib tiv taus cua sov, thiab txhim kho qhov zoo ntawm lub plhaub qe.
Sodium bicarbonate siv rau hauv kev lag luam tshuaj ua tus neeg sawv cev rau kev ua kom tawv nqaij du, tus neeg sawv cev rau kev ua kom tawv nqaij du, tus neeg ua kom tawv nqaij ci, tus neeg ua kom tawv nqaij ci, thiab cov khoom siv tshuaj. Sodium bicarbonate siv rau hauv kev lag luam tawv nqaij rau kev kho ua ntej thiab ntxuav cov tawv nqaij thiab tswj pH thaum lub sijhawm ua kom tawv nqaij ci. Kev ua kom sov sodium bicarbonate tsim cov sodium carbonate, uas yog siv rau kev ua xab npum thiab iav. Sodium bicarbonate yog siv rau hauv cov tshuaj ua tshuaj los ua tus neeg sawv cev rau kev ua kom tawv nqaij ci, tus neeg sawv cev rau kev ua kom tawv nqaij ci, thiab hauv cov tshuaj ua cov pa roj carbon dioxide hauv cov ntsiav tshuaj uas muaj zog. Cov tshuaj tua hluav taws BC hom tshuaj qhuav muaj sodium bicarbonate (lossis potassium bicarbonate). Lwm yam kev siv bicarbonate suav nrog kev ua cov ntawv pulp thiab ntawv, kev kho dej, thiab kev khawb roj.

2. Sodium Bicarbonate yog ib yam khoom uas ua rau cov khoom noj khov thiab muaj cov ph li ntawm 8.5 hauv 1% kua ntawm 25°c. Nws ua haujlwm nrog cov phosphates uas yog cov khoom noj uas muaj kua qaub (acidic leavening compounds) kom tso cov pa roj carbon dioxide uas nthuav dav thaum lub sijhawm ci kom muab cov khoom noj khov uas muaj ntau dua thiab cov khoom noj mos. Nws kuj siv rau hauv cov dej haus qhuav kom tau carbonation, uas tshwm sim thaum ntxiv dej rau hauv cov khoom sib xyaw uas muaj sodium bicarbonate thiab ib qho kua qaub. Nws yog ib feem ntawm cov hmoov ci. Nws kuj tseem hu ua baking soda, bicarbonate of soda, sodium acid carbonate, thiab sodium hydrogen carbonate.

3. Kev tsim ntau yam ntsev sodium; qhov chaw ntawm CO2; cov khoom xyaw ntawm cov hmoov ci, cov ntsev effervescent thiab dej haus; hauv cov tshuaj tua hluav taws, cov tshuaj ntxuav.

4. Sodium bicarbonate (baking soda) yog ib hom ntsev inorganic uas siv los ua ib yam khoom siv los tiv thaiv thiab kho pH, nws kuj ua haujlwm ua ib yam khoom siv los ua kom tawv nqaij tsis puas. Nws yog siv rau hauv cov hmoov ua kom tawv nqaij du.

Cov Lus Qhia Txog Sodium Bicarbonate

Cov tshuaj sib xyaw	Cov Lus Qhia Tshwj Xeeb
Tag Nrho Cov Alkali Cov Ntsiab Lus (raws li NaHCO3)	99.4%
Poob Thaum Qhuav	0.07%
Chloride (raws li CI)	0.24%
Kev dawb	88.2
PH (10g/L)	8.34
Raws li mg/kg	＜1
Hlau Hnyav mg/kg	＜1
ntsev ammonium	Dhau
Kev meej meej	Dhau