Cov neeg uas nyiam chemistry lossis ua haujlwm hauv kev lag luam tshuaj paub tias sulfuric acid txaus ntshai npaum li cas. Thaum ua haujlwm nrog hom tshuaj lom no, yuav tsum muaj cov cuab yeej tiv thaiv tshwj xeeb. Hauv kev sib xyaw nrog lwm cov ntsiab lus, qhov kev txiav txim tuaj yeem nce lossis txo, xws li, piv txwv li, nyob rau hauv rooj plaub ntawm kev sib cuam tshuam ntawm sulfuric acid thiab sodium carbonate.
sulfuric acid
Txhua cov kua qaub yog ib txwm ua ke ntawm cov ntsiab lus ntawm ntau hom tshuaj. Sulfuric acid yog ob lub hydrogen atoms thiab ib qho tshuaj acidic. Nws cov qauv yog H2SO4. Nyob rau hauv nws daim ntawv ntshiab, sulfuric acid yog kua, hnyav thiab khov, zoo li roj, nrog ib tug qaub tsw. Sulfuric acid cuam tshuam zoo nrog cov hlau thiab dej, thiab yog ib qho muaj zog oxidizing tus neeg sawv cev rau yuav luag txhua cov hlau tshwj tsis yog kub, hlau, thiab txhuas. Tias yog vim li cas kev lag luam sulfuric acid yog thauj hauv cov thawv steel lossis tso tsheb hlau luam. Acid forms nruab nrab thiab acid ntsev.
Kev sib cuam tshuam nrog sodium carbonate
Tshuaj tiv thaiv ntawm sodium carbonatenrog sulfuric acid yog ib txwm kwv yees. Thaum sib tham:
- nag xob nag cua ntog.
- xim hloov.
- Gas tso tawm.
- Teeb tawm.
Cov tshuaj formula ntawm cov tshuaj tiv thaiv zoo li Na2CO3 + H2SO4 → Na2SO4 + CO2 + H2O. Yog li ntawd, sodium sulfate thiab carbonic acid yog tsim, thiab carbonic acid decomposes los ntawm kev sib hloov mus rau hauv dej thiab carbon dioxide.
Nco ntsoov tias sodium carbonate yog cov hmoov dawb dawb, nrov npe hu ua dej qab zib tshauv, uas tuaj yeem ua haujlwm thiab khoom noj. Los ntawm nws tus kheej, cov tshuaj no tsis muaj teeb meem thiab siv txawm tias ua noj thiab ci. Txawm li cas los xij, kev sib cuam tshuam nrog sulfuric acid hloov sodium carbonate rau hauv ib qho ntawm cov tshuaj lom uas muaj zog tshaj plaws, uas yog siv rau hauv cov hlau tsis muaj hlau thiab ferrous metallurgy, hauv textile ntau lawm, hauv kev lag luam roj thiab roj thiab hauv kev lag luam tshuaj.
Nyob hauv tsev kawm ntawv cov ntaub ntawv kawm, cov lus piav qhia ntawm cov tshuaj sib xyaw no tuaj yeem pom nyob rau hauv cov phau ntawv kawm ntawm qib yim thiab cuaj.
