Sodium Sulfate vs Sodium Sulfite: Qhov txawv yog dab tsi?

Hauv kev lag luam tshuaj lom neeg, qhov tseeb ntawm lub npe yog txhua yam. Qhov sib txawv ntawm ib tsab ntawv lossis ib qho pa oxygen tuaj yeem hloov pauv tag nrho cov tshuaj lom neeg tus cwj pwm molecular, qhov xwm txheej txaus ntshai, thiab kev siv hauv kev lag luam. Ib qho ntawm cov ntsiab lus tsis meej pem tshaj plaws rau cov thawj coj kev yuav khoom, cov neeg saib xyuas kev thauj mus los, thiab txawm tias cov kws ua haujlwm hluas muaj ob qho tshuaj inorganic uas siv ntau hauv sodium: Sodium Sulfate (Na₂SO₄)thiab Sodium Sulfite (Na₂SO₃).

Txawm hais tias lawv lub npe zoo li zoo sib xws heev, kev xa lawv hloov pauv lossis siv cov qauv tsis raug hauv cov qauv tuaj yeem ua rau tag nrho cov pawg tsim khoom puas tsuaj. Phau ntawv qhia kev siv tshuab no piav qhia txog qhov sib txawv ntawm cov qauv, tshuaj lom neeg, thiab kev ua haujlwm ntawm ob hom tshuaj no.

1. Cov Qauv Tshuaj thiab Cov Xeev Oxidation

Lub hauv paus ntawm qhov sib txawv nyob hauv lawv cov qauv tshuaj lom neeg thiab lub xeev oxidation ntawm lub hauv paus sulfur atom.

Sodium Sulfate (Qhov ntawd₂Yog li ntawd₄):Kuj tseem sau ua Sodium Sulfate, cov tshuaj no muaj cov tshuaj sulfur atom uas sib txuas nrog plaub lub atoms oxygen. Ntawm no, cov sulfur nyob rau hauv nws lub xeev oxidation ruaj khov tshaj plaws (+6). Vim tias nws tau oxidized tag nrho, Sodium Sulphate ruaj khov hauv tshuaj, inert, thiab tsis yooj yim koom nrog hauv redox (txo-oxidation) cov tshuaj tiv thaiv nyob rau hauv cov txheej txheem ua tiav.

Sodium Sulfite (Qhov ntawd₂Yog li ntawd₄):Cov tshuaj no muaj ib qho oxygen atom tsawg dua, uas muaj ib qho sulfur atom sib txuas nrog peb lub oxygen atoms. Hauv qhov kev teeb tsa no, cov sulfur nyob ntawm lub xeev oxidation qis dua (+4). Vim tias nws tsis tau oxidized tag nrho, Sodium Sulfite ua haujlwm ua lub zog muaj zog tus neeg sawv cev txo qisNws muaj lub zog ntuj tsim rau cov pa oxygen, yooj yim hloov mus ua sodium sulphate thaum raug rau cov chaw oxidizing.

2. Kev Siv Hauv Kev Lag Luam: Inert Filler vs. Active Reducer

Vim tias lawv cov tshuaj reactivity yog polar sib txawv, lawv lub luag haujlwm thoob plaws ntau yam kev lag luam ua tiav yog sib txawv kiag li.

Kev Siv Tseem Ceeb ntawm Sodium Sulfate (Na₂Yog li ntawd₄)

Vim nws cov tshuaj lom neeg tsis muaj zog, lub zog ionic siab, thiab thermal stability, Sodium Sulphate feem ntau yog siv ua tus neeg sawv cev lossis tus qauv es tsis yog cov tshuaj reactive:

• Cov tshuaj ntxuav hmoov: Nws ua haujlwm ua tus neeg muab khoom siv tau zoo heev, ntws dawb thiab tiv thaiv kev sib sau ua ke, tswj hwm qhov viscosity thiab qhov ceev ntawm cov hmoov ntxhua khaub ncaws yam tsis cuam tshuam nrog cov surfactants nquag.
• Kev Tsim Khob Iav: Nws ua haujlwm ua tus neeg sawv cev zoo hauv cov iav uas yaj, pab tshem tawm cov pa npuas me me thiab tiv thaiv kev tsim cov scum thaum lub sijhawm yaj kub.
• Kev Siv Xim Npuag: Siv ua tus neeg sawv cev leveling, nws txo cov nqi tsis zoo ntawm cov ntaub, tso cai rau cov xim nkag mus rau paj rwb thiab cov xov hluavtaws sib npaug.

Kev Siv Tseem Ceeb ntawm Sodium Sulfite (Na₂Yog li ntawd₄)

Ua tsaug rau nws cov peev xwm tshem tawm cov pa oxygen thiab txo cov pa phem, Sodium Sulfite raug xa mus rau qhov chaw uas xav tau kev cuam tshuam tshuaj lom neeg:

• Kev Kho Dej: Nws yog dav txhaj rau hauv cov tshuab boiler feedwater hauv kev lag luam ua cov pa oxygen scavenger kom tiv thaiv kev xeb sab hauv thiab kev tawg ntawm cov kav hlau.
• Kev Lag Luam Pulp thiab Ntawv: Nws yog siv rau hauv cov kauj ruam sulfonation ntawm chemimechanical pulping los rhuav tshem cov lignin bonds, ua rau cov ntawv fibers muaj zog dua, ci dua.
• Kev Khaws Khoom Noj thiab Cawv: Nws ua haujlwm ua tus neeg sawv cev tiv thaiv kab mob thiab antioxidant, tiv thaiv kev ua xim av enzymatic thiab kev puas tsuaj ntawm cov kab mob hauv cov txiv hmab txiv ntoo qhuav thiab dej haus.

3. Cov Khoom Siv Lub Cev thiab Kev Sib Txawv ntawm Kev Siv

Ob hom tshuaj no feem ntau zoo li cov hmoov dawb los yog cov hmoov me me, ua rau kev pom tsis tseeb. Txawm li cas los xij, lawv tus cwj pwm txawv raws sijhawm:

• Sodium Sulfate nws ruaj khov heev nyob rau hauv huab cua qhib. Nws muaj nyob rau hauv daim ntawv anhydrous los yog ua ib tug decahydrate (Glauber lub ntsev).
• Sodium Sulfite yog tias raug cua thiab dej noo, nws yuav lwj qeeb thaum khaws cia, vim nws maj mam nqus cov pa oxygen hauv huab cua los ua sodium sulphate. Yuav tsum khaws cia rau hauv cov thawv kaw ntom ntom uas tswj cov av noo kom tsawg kom nws cov tshuaj lom neeg muaj zog.