Sodium Persulphate vs Potassium Persulphate: Uas Zoo dua rau Kev Siv Tshuaj Oxidation

Sodium persulphate (Na₂S₂O₈) thiab potassium persulphate (K₂S₂O₈) yog ob qho tib si muaj zog oxidizing cov neeg ua haujlwm dav siv hauv kev lag luam, tab sis lawv cov khoom sib txawv thiab cov yam ntxwv ua haujlwm ua rau lawv haum rau cov kev xav tau oxidation sib txawv. Rau cov neeg siv khoom lag luam thiab cov neeg xa khoom, kev nkag siab qhov sib txawv ntawm ob lub tebchaw no yog qhov tseem ceeb rau kev xaiv cov khoom tsim nyog rau cov ntawv thov tshwj xeeb, kom ntseeg tau tias kev ua haujlwm zoo thiab tus nqi -kev ua tau zoo.

 

Chemically, ob lub tebchaw muaj nyob rau hauv tsev neeg persulphate, muaj peev xwm oxidizing zoo sib xws, tab sis lawv lub cev muaj zog sib txawv. Sodium persulphate yog dawb crystalline hmoov nrog solubility ntawm 55 g / 100 ml ntawm 25 degree, thaum poov tshuaj persulfate muaj qis solubility ntawm 1.7 g / 100 ml ntawm 25 degree. Qhov sib txawv ntawm kev solubility no yog qhov tseem ceeb hauv kev xaiv cov ntawv thov, vim tias sodium persulphate nyiam rau cov kev daws teeb meem aqueous, thaum poov tshuaj persulphate haum rau cov ntawv thov uas xav tau solubility tsawg.

 

Nyob rau hauv cov nqe lus ntawm oxidation kev ua tau zoo, sodium persulphate muaj ib tug me ntsis oxidation peev xwm ntau dua li poov tshuaj persulphate, ua rau nws zoo dua nyob rau hauv cov kev siv uas yuav tsum tau muaj zog oxidation, xws li PCB etching, dej khib nyiab, thiab polymerization pib. Nws dissolves sai sai hauv dej, tso tawm persulphate ions uas hnov ​​​​mob sai nrog cov kuab tshuaj organic thiab lwm yam tshuaj, ua rau nws zoo tagnrho rau kev ua haujlwm oxidation siab -.

 

Potassium persulphate, ntawm qhov tod tes, muaj peev xwm oxidation qis dua tab sis siab dua thermal stability. Nws decomposes ntawm qhov kub siab dua (nyob ib ncig ntawm 100 degree) piv rau sodium persulphate (nyob ib ncig ntawm 60 degree), ua rau nws haum rau siab -kub oxidation daim ntaub ntawv, xws li nyob rau hauv zus tau tej cov polymers thiab plastics. Nws cov solubility tsawg ua rau nws zoo tagnrho rau cov ntawv thov uas yuav tsum tau ua kom qeeb, tswj kev tso tawm ntawm cov tshuaj oxidizing, xws li hauv cov plaub hau bleaching khoom thiab tshuaj synthesis.

 

Tus nqi yog lwm qhov sib txawv tseem ceeb. Sodium persulphate feem ntau yog 20-30% pheej yig dua li poov tshuaj persulphate, vim cov nqi qis ntawm sodium raw khoom piv rau cov poov tshuaj. Qhov no ua rau sodium persulphate tus nqi - kev xaiv zoo rau cov ntawv loj - cov ntawv thov kev lag luam, xws li kev kho dej khib nyiab thiab kev tsim PCB, uas yuav tsum muaj cov ntim ntau.

 

Daim ntawv thov - kev xaiv tshwj xeeb yog qhov tseem ceeb. Sodium persulphate yog qhov zoo dua rau PCB etching (vim kev ua haujlwm siab solubility thiab oxidation efficiency), kev kho dej khib nyiab (oxidation ceev ntawm cov pa phem), thiab polymerization pib (cov tshuaj tiv thaiv ceev). Potassium persulphate zoo dua rau siab -kub polymerization, plaub hau bleaching (tswj tso tawm), thiab daim ntawv thov uas tsis muaj solubility yog xav tau.

 

Rau cov neeg yuav khoom lag luam, kev xaiv ntawm sodium persulphate thiab potassium persulphate nyob ntawm lawv cov kev xav tau oxidation tshwj xeeb, kev xav tau solubility, thiab kev txwv nyiaj txiag. Rau cov neeg xa khoom, muab ob qho khoom tso cai rau lawv ua raws li ntau qhov kev xav tau ntawm cov neeg yuav khoom, thaum hais txog qhov zoo ntawm txhua tus pab cov neeg yuav khoom txiav txim siab. Los ntawm kev nkag siab txog qhov sib txawv no, cov lag luam tuaj yeem xaiv qhov zoo tshaj plaws oxidizing tus neeg sawv cev, kom ntseeg tau tias kev ua tau zoo thiab tus nqi -kev ua tau zoo, nrog rausodium persulphateyog qhov kev xaiv zoo tshaj plaws rau feem ntau -kev ua tau zoo, loj- nplai oxidation daim ntawv thov.