Qhov sib txawv tseem ceeb ntawm sodium perborate thiab percarbonate yog tias sodium perborate muaj ib qho perborate anion uas muaj cov cyclic -B-O-O-core nrog ob pawg hydroxyl txuas rau txhua boron atom whereas sodium percarbonate tsuas yog ib qho adduct nrog hydrogen peroxide.
Sodium perborate thiab sodium percarbonate yog cov tshuaj inorganic uas muaj sodium li cations.
Sodium Perborate yog dab tsi?
Sodium perborate yog ib qho tshuaj inorganic tshuaj muaj cov tshuaj formula NaH2BO4 los yog Na2H4B2O8. Peb tuaj yeem sau lub npe ntawm qhov sib xyaw no ua PBS. Cov tshuaj no feem ntau pom nyob rau hauv nws daim ntawv anhydrous lossis hauv daim ntawv ntawm hexahydrate; e.g. monohydrate daim ntawv ntawm sodium perborate yog hu ua PBS-1, thiab daim ntawv tetrahydrate hu ua PBS-4. Ob daim ntawv hydrate ntawm sodium perborate yog dawb, tsis muaj ntxhiab, thiab dej-soluble solids. Sodium perborate ntsev feem ntau yog siv rau hauv kev tsim cov tshuaj ntxhua khaub ncaws. Nyob ntawd nws ua raws li ib qho ntawm cov ntug hiav txwv dej peroxide.
Daim duab 01: Cov qauv ntawm Sodium Perborate
Thaum xav txog cov qauv hauv paus ntawm sodium perborate, nws txawv ntawm cov qauv tshuaj ntawm sodium percarbonate thiab sodium perphosphate vim tias nws muaj perborate anion uas muaj cov cyclic -B-O-O-core nrog ob pawg hydroxyl txuas rau txhua tus. boron atom ua. Cov qauv nplhaib no feem ntau siv lub rooj zaum sib haum.
Feem ntau, sodium perborate yooj yim nkag mus rau hydrolysis thaum ntxiv rau dej, uas ua rau hydrogen peroxide thiab borate. Nyob rau hauv ib qho kev daws ntawm aqueous sodium perborate, lub cyclic anion undergoes hydrolysis rau hauv ob anions ntawm [B(OH)3(OOH)]-. Tsis tas li ntawd, daim ntawv monohydrate ntawm qhov sib xyaw no tuaj yeem yooj yim yaj hauv dej piv rau tetrahydrate daim ntawv, thiab nws muaj qhov kub siab dua thiab. Yog li ntawd, peb tuaj yeem tsim monohydrate los ntawm cua sov tetrahydrate sodium perborate.
Thaum xav txog kev siv sodium perborate, nws ua haujlwm ruaj khov ntawm cov pa oxygen hauv ntau cov tshuaj ntxuav tes, ntxhua khaub ncaws, ntxhua khaub ncaws, thiab ntxhua khaub ncaws. Tsis tas li ntawd, nws muaj nyob rau hauv ib co hniav bleaching qauv rau cov tsis tseem ceeb hauv paus kho cov hniav.
Sodium Percarbonate yog dab tsi?
Sodium percarbonate yog ib qho inorganic compound uas muaj cov tshuaj formula Na2H3CO6. Peb tuaj yeem soj ntsuam qhov sib xyaw ua ke ntawm sodium carbonate thiab hydrogen peroxide, nws cov qauv tuaj yeem sau tau zoo li 2Na2CO3.3H2O. Sodium percarbonate yog cov xim tsis muaj xim, crystalline, hygroscopic khoom uas yog soluble hauv dej. Peb tuaj yeem sau cov ntsiab lus no ua SPC. Feem ntau, cov khoom no muaj 32.5% los ntawm qhov hnyav ntawm hydrogen peroxide.
Daim duab 02: Cov qauv ntawm Sodium Percarbonate
Thaum sodium percarbonate yaj hauv dej, nws tawm los sib xyaw ntawm hydrogen peroxide (uas nws thiaj li dhau mus decomposition rau dej ad oxygen), sodium cations thiab carbonate anions.
Thaum xav txog kev siv sodium percarbonate, nws yog ib qho tseem ceeb raws li tus neeg sawv cev oxidizing hauv cov khoom ntxhua khaub ncaws, cov khoom ntxuav, thiab lwm yam. Nws kuj tseem siv tau los ua tus neeg saib xyuas hauv ntau lub tsev. Tsis tas li ntawd, peb tuaj yeem siv qhov sib xyaw no hauv cov organic synthesis ua qhov yooj yim ntawm cov dej tsis muaj hydrogen peroxide hauv cov kuab tshuaj tshwj xeeb.
Qhov txawv ntawm Sodium Perborate thiab Percarbonate yog dab tsi?
Sodium perborate thiab sodium percarbonate yog cov tshuaj inorganic muaj sodium ua cations. Qhov sib txawv tseem ceeb ntawm sodium perborate thiab percarbonate yog tias sodium perborate muaj ib qho perborate anion uas muaj cov cyclic –B-O-O-core nrog ob pawg hydroxyl txuas rau txhua boron atom whereas sodium percarbonate tsuas yog ib qho ntxiv nrog hydrogen peroxide.
Hauv qab infographic tabulates ntau qhov sib txawv ntawm sodium perborate thiab percarbonate rau ib sab ntawm kev sib piv.
Summary – Sodium Perborate vs Percarbonate
Sodium perborate thiab sodium percarbonate yog cov tshuaj inorganic uas muaj sodium ua cation. Qhov sib txawv tseem ceeb ntawm sodium perborate thiab percarbonate yog tias sodium perborate muaj ib qho perborate anion uas muaj cov cyclic -B-O-O-core nrog ob pawg hydroxyl txuas rau txhua boron atom thaum sodium percarbonate tsuas yog ib qho ntxiv nrog hydrogen peroxide.
