Yuav ua li cas yog NaOH Manufactured?

Cov txheej txheem ntau lawm: thawj zaug yaj calcium oxide hauv dej los ua cov kua qaub

CaO + H2O=Ca(OH)2

Cov txheej txheem no yog ib qho exothermic cov tshuaj tiv thaiv, xyuam xim rau cov txaws ntawm cov txiv qaub dej los ua mob rau tib neeg.

Sodium carbonate yog reacted nrog dej txiv qaub los tsim sodium hydroxide:

Na2CO3 plus Ca(OH)2=CaCO3 plus 2NaOH

Sodium hydroxide, cov tshuaj formula yog NaOH, feem ntau hu ua caustic soda, caustic soda, caustic soda, yog ib tug muaj zog corrosive alkali, feem ntau nyob rau hauv daim ntawv ntawm flakes los yog granules, yooj yim soluble nyob rau hauv dej (exothermic thaum yaj nyob rau hauv dej) thiab cov ntaub ntawv Alkaline daws, txwv tsis pub deliquescence, yooj yim nqus dej vapor (deliquescence) thiab carbon dioxide (deterioration) hauv huab cua.

Kev Siv: Sodium hydroxide (NaOH) muaj ntau yam kev siv. Nws yog siv nyob rau hauv papermaking, xab npum, dyes, rayon, txhuas, roj av refining, paj rwb ntaub xov, purification ntawm thee tar khoom, raws li zoo raws li cov zaub mov ua, ntoo ua thiab machinery kev lag luam.

Sodium hydroxide tshem tawm kauj ruam

Cov impurities feem ntau yog sodium carbonate

Txoj kev tshem tawm: ua ntej npaj ib qho kev daws teeb meem, uas Na2CO3 yog insoluble (tib yam ion nyhuv), thiab cov kua ntshiab NaOH tuaj yeem tau txais.

Nws tseem tuaj yeem ntxuav nrog dej me me ua ntej npaj cov tshuaj (Na2CO3 ua los ntawm metamorphism feem ntau yog nyob rau saum npoo ntawm NaOH hais).