Feem ntau siv cov tshuaj ua dej ua kua tshuaj, feem ntau yog acidic ntsev (txhuas sulfate) thiab alkaline ntsev (sodium bicarbonate) nrog ib tug me me ntawm tus kabmob foaming (cog hydrolysis protein los yog licorice hmoov), me me ntawm stabilizer (ferric chloride) , qhov kev sib cuam tshuam ntawm npaus, qhov tshwm sim yog raws li nram no:
6NaHCO3 10 Al2 (SO4) 3 = 2Al (OH) 30 3Na2SO4 10 6CO2
Cov tshuaj tua hluav taws ua rau cov tshuaj tua hluav taws ua rau cov roj carbon dioxide loj tom qab qhov kev txiav txim, thiab nws ua ntau lub npuas nrog tus neeg sawv cev ntawm tus neeg ntxaug. Qhov no ua npuas ncauj yog qhov me me, thiab muaj khov khov, tuaj yeem npog rau ntawm qhov hluav taws kub raug rho tawm. Tib lub sij hawm carbon dioxide yog ib qho roj ua tsis zoo, tsis txhawb kev sib tua.
Cov tshuaj tua hluavtaws extinguishing tus neeg siv tshuaj tua kab yuav tsis siv los tua cov tshuaj siv dej tshuaj tua hluav taws thiab hluav taws xob hluav taws xob.
Taw qhia txog cov khoom muaj nqis loj tuaj txhuas sulfate
Cov khoom siv tshuaj muaj cov dej nyob hauv dej, txhuas sulfate nyob rau hauv cov ntshiab sulfuric acid insoluble (tsuas yog coexistence), nyob rau hauv sulfuric acid tov nrog sulfuric acid yaj hauv dej, yog li ntawm solubility ntawm txhuas sulfate hauv sulfuric acid yog lub solubility ntawm txhuas sulfate hauv dej .
Chav tsev kub los nag muaj 18 molecules crystallization dej, rau 18 dej txhuas sulfate, muaj ntau lawm tshaj 18 dej txhuas sulfate. Muaj anhydrous aluminium sulfate 51.3%, txawm tias 100 ℃ yuav tsis yaj (soluble nyob rau hauv lawv cov dej crystallization).
Aluminium sulfate tsis yooj yim rau weathering thiab poob crystalline dej, ruaj khov, cua sov yuav dehydrate, kub kub yuav decompose rau alumina thiab sulfur oxides. Heated rau 77 ℃ pib rau decompose rau alumina, sulfur trioxide, sulfur dioxide thiab dej vapor. Soluble nyob rau hauv dej, acids thiab alkalis, insoluble nyob ethanol. Lub kua dej aqueous yog acidic. Tom qab rhuav tshem, txhuas hydroxide yog ua tiav. Alkaline aluminium sulfate yuav tau ua los ntawm cov dej kub hauv dej kom ntev. Muaj cov khoom muaj grey-dawb flake, granular or blocky, nrog cov ntsev tsis muaj ntsev thiab ntsuab, thiab vim tsis muaj nqi qis ua rau oxidation ferric ntsev ua kom cov tawv daj. Coarse grain yog gray-dawb nplua grained qauv ntxeem tau cov ntaub ntawv. Kev mob non-toxic, plua plav yuav ua kom lub qhov muag tau.
Taw qhia txog sodium bicarbonate loj muaj
Sodium bicarbonate (Sodium Bicarbonate), feem ntau hu ua "baking soda", "soda hmoov", "hnyav Cao", me me dawb iav, hauv dej tsis tshua xim dua sodium carbonate. Cov khib nyiab ntau tshaj 50 ℃ pib ua rau lub cim ntawm sodium carbonate, carbon dioxide thiab dej, 270 ℃ decomposition tag nrho. Sodium bicarbonate yog ib qho alkali thiab tsis muaj zog thiab cov kua qaub cawv amine, yaj hauv dej thaum nws pom tsis zoo alkaline. Qhov yeeb yam no feem ntau yog siv los ua tus neeg xoob xoob nyob rau hauv tus txheej txheem ntawm cov khoom noj khoom haus. Sodium bicarbonate tom qab cov nyhuv ntawm residual sodium carbonate, ntau siv yuav ua rau cov khoom tiav alkali tsw.
