Efflorescence yog tus txheej txheem ntawm kev poob dej ntawm hydration los ntawm hydrate. … Ib qho piv txwv zoo ntawm efflorescence tuaj yeem pom nyob rau hauv qhov kev hloov ntawm cov tsos ntawm tooj liab sulfate crystals raug rau huab cua. Thaum freshly crystallized, tooj liab (II) sulfate pentahydrate crystals yog translucent xiav.
efflorescence yog dab tsi nrog piv txwv?
Efflorescence yog cov cuab yeej ntawm qee yam khoom kom poob tag nrho, lossis ib nrab ntawm lawv cov dej ntawm crystallization thaum lawv cov muaju raug rau huab cua qhuav txawm tias luv luv. Piv txwv li: Ntsuag soda, Glauber's ntsev, Epsom ntsev.
txhais li cas los ntawm efflorescence?
Efflorescence yog a deposits ntawm ntsev, feem ntau yog dawb, tsim rau ntawm ib tug nto, cov tshuaj tau tshwm sim nyob rau hauv cov tshuaj los ntawm nyob rau hauv lub pob zeb los yog masonry thiab tom qab precipitated los ntawm evaporation.
piv txwv ntawm efflorescence ntsev yog dab tsi?
Piv txwv li, vim tias lub vapor pressures ntawm kev ntxuav dej qab zib (Na2CO3·10H2 O) thiab Glauber's ntsev (Na 2SO4·10H2 O) ib txwm tshaj li ntawm cov dej vapor nyob rau hauv qhov chaw, cov ntsev effloresce (piv txwv li, poob tag nrho los yog ib feem ntawm lawv cov dej ntawm hydration), thiab lawv qhov chaw xav tias ib tug powdery tsos. …
Efflorescent ntsev muab ob qho piv txwv yog dab tsi?
2]Gypsum (CaSO4. 2H2O) yog cov khoom hydrate uas, nyob rau hauv ib qho chaw qhuav txaus, yuav tso nws.dej mus rau theem roj thiab tsim anhydrite (CaSO4). 3]Copper(II) sulfate (bluestone) (CuSO4.
