Qhov txawv ntawm Soda Ash thiab Baking Soda

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2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Soda Ash vs Baking Soda

Qhov txawv ntawm cov dej qab zib tshauv thiab baking soda feem ntau muaj nyob rau hauv lawv cov kev siv. Cov npe tshuaj ntawm dej qab zib tshauv (Na₂CO₃) thiab baking soda (NaHCO_{3) suab zoo sib xws. Feem ntau ntawm lawv cov khoom siv tshuaj nrog rau cov qauv tshuaj thiab cov qauv tsim kuj zoo ib yam, tab sis lawv cov kev siv sib txawv heev. Ob qho tib si ntawm cov ntsiab lus no yog ib txwm muaj, tab sis lawv tuaj yeem tsim tau siv cov txuj ci dag thiab. "Solvay method" yog cov txheej txheem kev lag luam tseem ceeb siv los tsim cov dej qab ntsev thiab ci dej qab zib. Nws tau tsim los ntawm Belgian chemist, "Ernest Solvay" hauv xyoo 1980's.}

Soda Ash yog dab tsi?

Sodium carbonate (Na₂CO_{3) yog lub npe tshuaj rau dej qab zib tshauv. Nws tseem hu ua "sab soda" thiab "soda crystals." Nws tau siv txij li hnub qub. Piv txwv li, cov neeg Iyiv tau siv iav ntim los ntawm dej qab zib tshauv thaum 3500 BC. Ntxiv mus, Loos tau nthuav nws txoj kev siv; lawv siv los ua ib qho khoom xyaw hauv tshuaj thiab ua mov ci. Nws muaj txiaj ntsig zoo rau kev lag luam vim nws tau siv ntau hauv kev lag luam xws li iav, ntawv, tshuaj detergents, thiab tshuaj. Nws kuj yog siv los ua lub hauv paus muaj zog thiab kho pH hauv qee kis.}

Trona ores yog qhov loj tshaj plaws ntawm cov dej qab zib tshauv. Ntshiab dej qab zib tshauv yog tau, tom qab ua ib tug series ntawm purification txheej txheem. Ua ntej, nws yog crushed thiab rhuab nyob rau hauv ib lub kiln kom tshem tau cov pliaj gases. Qhov no ua rau muaj cov roj ntsha tsis zoo Sodium Carbonate. Dej yog ntxiv thiab lim kom tshem tawm impurities. Cov tshuaj yog boiled rau daim muaju thiab thaum kawg centrifuged thiab qhuav.

Qhov txawv ntawm Soda Ash thiab Baking Soda

Baking Soda yog dab tsi?

Baking soda yog lub npe lag luam rau Sodium bicarbonate (NaHCO _{3). Nws yog ib qho tsis muaj ntxhiab tsw dawb crystalline khoom, tab sis nws yog muag raws li cov hmoov zoo. Nws yog soluble hauv dej thiab me ntsis soluble hauv cawv. Nws muaj me ntsis alkaline saj thiab yog nonflammable. Nws txoj kev siv tau nthuav dav ntau yam; Piv txwv li, nws yog siv hauv kev lag luam khoom noj, tshuaj, thiab tshuaj pleev ib ce. Nws tsis yog tshuaj lom. Yog li, nws tsis ua rau muaj kev phom sij rau ib puag ncig.}

Baking soda yog ib qho khoom zoo tshaj plaws los ntxuav txiv hmab txiv ntoo thiab zaub kom tshem tawm cov tshuaj tua kab thiab lwm yam impurities. Nws tuaj yeem siv los ntxuav qhov chaw tsis muaj khawb. Nws muaj peev xwm nqus tau thiab neutralize tsis kaj siab tsw. Sodium bicarbonate tseem ceeb heev rau peb lub cev. Sodium bicarbonate tam sim no nyob rau hauv tib neeg lub cev ua raws li ib tug tsis, tswj cov acidity nyob rau hauv cov ntshav. Hauv peb lub hlwb, carbon dioxide (CO_{2) yog tsim los ua pov tseg; Nws ua ke nrog cov dej hauv cov hlab ntsha los tsim cov bicarbonate.}

Dab tsi yog qhov txawv ntawm Soda Ash thiab Baking Soda?

Tshuaj Lub Npe thiab Cov Qauv:

• Tshuaj lub npe ntawm soda tshauv yog Sodium carbonate; Na₂CO₃

• Tshuaj lub npe ntawm baking soda yog Sodium bicarbonate; NaHCO₃

Usage:

• Soda tshauv feem ntau yog siv hauv tsev thiab kev lag luam, tab sis tsis tshua muaj nyob hauv kev lag luam khoom noj.

• Hloov pauv, ci dej qab zib yog siv ntau hauv kev lag luam khoom noj thiab nws muaj txiaj ntsig zoo hauv chav ua noj rau ntau lub hom phiaj.

Qhov tseem ceeb rau peb lub cev:

• Tib neeg lub cev tsis haus lossis tsim dej qab zib.

• Tab sis ci dej qab zib yog ib txwm muaj nyob hauv cov ntshav, thiab nws tseem ceeb heev rau kev ua haujlwm ntawm lub cev.

Solubility:

• Soda tshauv tau yooj yim soluble hauv dej tab sis ncav cuag qhov siab tshaj plaws solubility ntawm qhov kub thiab txias (35.4^{0C). Solubility txo qis tshaj qhov kub no.}

• Baking soda soluble in water and is me ntsis soluble in alcohol.