Hydrogen peroxide
Txheej Txheem Cej Luam Khoom
Lub Npe Tshuaj: Hydrogen Peroxide
Tus lej CAS: 7722-84-1
Cov mis mos molecular: H₂O₂
Qhov Hnyav Molecular: 34.01 g/mol
Tsos: Kua tsis muaj xim, pob tshab, tsis muaj ntxhiab (cov kua tsawg tsawg) mus rau cov kua nplaum me ntsis (cov kua ntau)
Cov Kev Ntsuas Feem Ntau: 3% (tsev neeg/kho mob), 30% (kev lag luam), 50-70% (kev lag luam uas muaj kev ntshiab siab)
Hydrogen peroxide (H₂O₂) yog ib yam tshuaj oxidizing muaj zog tab sis siv tau ntau yam, uas paub tias nws muaj peev xwm yaj mus ua dej (H₂O) thiab oxygen (O₂) - tsis muaj cov tshuaj lom. Qhov cwj pwm zoo rau ib puag ncig no, ua ke nrog nws cov khoom oxidizing muaj zog, ua rau nws yog ib qho khoom siv tseem ceeb hauv tsev neeg, kev kho mob, kev lag luam, thiab kev ua liaj ua teb. Nws muaj nyob rau hauv cov concentration uas tsim tshwj xeeb kom tau raws li qhov xav tau ntawm kev siv tshwj xeeb, txij li kev saib xyuas qhov txhab me me mus rau kev ua haujlwm hnyav hauv kev lag luam.
Cov Khoom Tseem Ceeb & Cov Txiaj Ntsig
| Vaj tse | Cov Lus Qhia Tshwj Xeeb | Qhov Zoo Tshaj Plaws |
| Muaj Peev Xwm Oxidizing | 1.77 V (tus qauv electrode peev xwm) | Ua kom cov organic/inorganic puas tsuaj tau zoo; tua cov kab mob (kab mob, kab mob virus, thiab fungi) |
| Kev yaj tau | Sib xyaw nrog dej hauv txhua qhov sib piv | Yooj yim rau dilute rau qhov xav tau concentration; sib xws nrog cov aqueous formulations |
| Kev coj cwj pwm rhuav tshem | Ruaj khov ntawm chav sov (thaum khaws cia kom zoo); lwj nrog cua sov/lub teeb/cov tshuaj catalysts (piv txwv li, MnO₂) | Tso tawm cov pa oxygen rau kev ua pa (piv txwv li, kev kho dej khib nyiab) yam tsis muaj cov khoom lom. |
| pH (30% Tshuaj) | ~4.0 (me ntsis acidic) | Txo qhov xeb ntawm cov ntaub ntawv sib xws; txhim kho kev ruaj khov thaum lub sijhawm khaws cia |
| Kev Huv Si (Qib Kev Lag Luam) | ≥99.5% (tsis suav nrog dej; cov hlau hnyav tsawg: ≤5 ppm Pb) | Xyuas kom muaj kev ua haujlwm zoo sib xws; zam cov khoom tsis huv uas cuam tshuam cov txheej txheem |
Cov Khoom Tseem Ceeb & Cov Txiaj Ntsig
Khoom vaj khoom tsev
Cov Lus Qhia Tshwj Xeeb
Qhov Zoo Tshaj Plaws
Muaj peev xwm oxidizing
1.77 V (lub zog hluav taws xob txheem)
Ua kom cov organic/inorganic puas tsuaj tau zoo; tua cov kab mob (kab mob, kab mob virus, thiab fungi)
Kev yaj tau
Sib xyaw nrog dej hauv txhua qhov sib piv
Yooj yim rau dilute rau qhov concentration xav tau; sib xws nrog cov dej formulations
Kev coj ua ntawm kev rhuav tshem
Ruaj khov ntawm chav sov (thaum khaws cia kom zoo); lwj nrog cua sov/lub teeb/cov tshuaj ua kom puas (piv txwv li, MnO₂)
Tso tawm cov pa oxygen rau kev ua pa (piv txwv li, kev kho dej khib nyiab) yam tsis muaj cov khoom lom.
pH (30% Cov Tshuaj)
~4.0 (me ntsis acidic)
Txo qhov xeb ntawm cov ntaub ntawv sib xws; txhim kho kev ruaj khov thaum lub sijhawm khaws cia
Kev Huv (Qib Kev Lag Luam)
≥99.5% (tsis suav nrog dej; cov hlau hnyav tsawg: ≤5 ppm Pb)
Xyuas kom muaj kev ua haujlwm zoo sib xws; zam cov khoom tsis huv uas cuam tshuam cov txheej txheem
Cov Ntawv Thov Ib Txwm Muaj
Kev hloov pauv ntawm H₂O₂ ua rau nws tseem ceeb heev rau ntau yam lag luam, nrog rau kev tsom mus rau qhov kev siv:
3.1 Kev Kho Mob & Kev Saib Xyuas Kev Noj Qab Haus Huv (3-6% Concentrations)
Kev Tua Kab Mob Qhov Ncauj: Cov tshuaj 3% yog siv dav los ntxuav cov qhov txiav me me, cov khawb, thiab cov kub hnyiab - ua rau cov kab mob oxidize thaum tsim cov txheej txheem tiv thaiv kev kis kab mob.
Kev Huv Huv Qhov Ncauj: Ntxiv rau hauv cov tshuaj ntxuav qhov ncauj kom txo cov quav hniav, tua cov kab mob ua pa phem, thiab ua kom cov hniav dawb (hauv cov mis tshuaj uas tswj tau).
Kev Tua Kab Mob Hauv Cov Khoom Siv Kho Mob: Cov tshuaj uas muaj tsawg concentration tua kab mob rau cov cuab yeej uas tsis ua rau mob (piv txwv li, lub ntsuas kub, cov cuab yeej kho hniav) yam tsis ua rau puas tsuaj rau cov chaw.
3.2 Khoom Siv Hauv Tsev & Khoom Siv (3-10% Kev Ntsuas)
Kev Ntxuav Khaub Ncaws Dawb: Lwm txoj hauv kev zoo dua li kev ntxuav chlorine; ua rau cov ntaub (paj rwb, ntaub linen) dawb thiab tshem tawm cov xim organic (kas fes, tshuaj yej, ntshav) yam tsis muaj xim ploj mus.
Kev Ntxuav Nto: Tua kab mob rau cov txee ua noj, cov khoom siv hauv chav dej, thiab hauv pem teb - zoo tiv thaiv pwm, kab mob me me, thiab cov kab mob uas kis tau los ntawm zaub mov (piv txwv li, E. coli, Salmonella).
Kev Saib Xyuas Plaub Hau: Siv rau hauv cov tshuaj dawb plaub hau (6-10% concentration) los ua kom cov plaub hau dawb los ntawm kev oxidizing melanin.
3.3 Kev Ua Lag Luam (30-70% Kev Sib Xyaws)
Kev Dawb Ntawv & Pulp: Kev siv loj tshaj plaws hauv kev lag luam - 30-50% H₂O₂ ua kom cov ntoo pulp dawb rau cov ntawv zoo (piv txwv li, ntaub so ntswg, ntawv luam ntawv) yam tsis muaj cov tshuaj chlorine lom.
Kev Tsim Khoom Siv Ntaub: Ua kom cov ntaub ntuj (paj rwb, plaub yaj) thiab cov ntaub ua los ntawm cov khoom siv (polyester); ua kom cov ntaub dawb thiab xim ruaj khov ua ntej zas xim.
Kev Kho Dej Pov Tseg: Rhuav tshem cov pa phem organic (phenols, dyes, cyanides) thiab txo cov COD/BOD; tso pa oxygen los txhawb kev ua haujlwm ntawm cov kab mob aerobic.
Khoom Siv Hluav Taws Xob: Cov H₂O₂ uas muaj qhov huv siab (70%) ntxuav cov wafers semiconductor — tshem tawm cov oxides thiab cov kuab paug ntawm qhov chaw kom ntseeg tau tias cov chip ua haujlwm tau zoo.
3.4 Kev Ua Liaj Ua Teb (10-30% Kev Ntsuas)
Kev Tua Kab Mob Hauv Av: Cov tshuaj uas tau muab diluted tua cov kab mob uas kis tau hauv av, cov kab mob nematodes, thiab cov noob nroj tsuag; kev tso pa oxygen ua rau av muaj pa zoo dua rau kev loj hlob ntawm cov hauv paus hniav.
Kev Tiv Thaiv Qoob Loo: Cov tshuaj tsuag uas tsis muaj zog ntau yuav ua rau cov nroj tsuag tiv taus cov kab mob fungal (piv txwv li, cov pwm me me) thiab ua rau cov nroj tsuag loj hlob sai.
Kev Nyab Xeeb & Kev Ua Raws Cai
4.1 Cov Lus Qhia Txog Kev Tswj Xyuas
Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE): Yog tias muaj cov tshuaj lom ntau tshaj 30%, hnav cov hnab looj tes tiv taus tshuaj lom (nitrile), cov tsom iav tiv thaiv kev nyab xeeb, thiab lub tsho tiv thaiv kab mob - tsis txhob kov daim tawv nqaij/qhov muag (tuaj yeem ua rau kub hnyiab).
Kev Khaws Cia: Khaws cia rau qhov chaw txias, tsaus ntuj, thiab muaj cua nkag tau zoo; siv cov thawv HDPE lossis cov thawv iav uas tsis pom kev (lub teeb ua rau lub cev lwj sai). Cais cov roj, cov kua qaub, thiab cov hlau (piv txwv li, hlau, tooj liab) kom tsis txhob muaj kev tsis sib haum xeeb.
Kev Pab Thawj Zaug: Yog tias raug, yaug daim tawv nqaij/qhov muag nrog dej txias li 15+ feeb; kev noj yuav tsum tau mus ntsib kws kho mob tam sim ntawd.
4.2 Kev Ua Raws Cai
FDA (Tebchaws Meskas): Tau pom zoo rau kev siv rau kev sib cuag nrog zaub mov (piv txwv li, kev tua kab mob rau cov khoom siv ua zaub mov) thiab kev siv kho mob uas yuav tsis tas yuav muaj daim ntawv yuav tshuaj (OTC) (3% cov tshuaj kho qhov txhab).
REACH (EU): Sau npe raws li REACH; ua raws li cov kev txwv ntawm cov hlau hnyav uas tsis huv rau kev siv hauv kev lag luam thiab cov neeg siv khoom.
OSHA (Tebchaws Meskas): Kev txwv tsis pub muaj kuab lom hauv chaw ua haujlwm (OEL) teem rau ntawm 1 ppm (8-teev TWA) los tiv thaiv cov neeg ua haujlwm uas ua haujlwm nrog cov pa phem ntau.
Cov Qauv ISO: Peb cov H₂O₂ qib kev lag luam ua tau raws li ISO 8413 (cov lus qhia rau hydrogen peroxide) thiab ISO 9001 (kev tswj xyuas zoo).
Cov Ntaub Ntawv Txog Kev Siv Tshuab (TDS) Cov Ntsiab Lus Tseem Ceeb
| Cov Qauv | 3% Qib Kho Mob | 30% Qib Kev Lag Luam | Txoj Kev Ntsuas |
| Kev Ntsuas (Cov Ntsiab Lus H₂O₂) | 2.5 - 3.5% | 29.0 - 31.0% | Kev ntsuas ntawm cov poov tshuaj permanganate |
| Cov Hlau Hnyav (Pb) | ≤1 ppm | ≤5 ppm | Kev Ntsuas Atomic Absorption Spectroscopy (AAS) |
| Cov kua qaub dawb (raws li H₂SO₄) | ≤0.02% | ≤0.04% | Kev ntsuas sodium hydroxide |
| Qhov Ceev (20 ° C) | 1.01 g/cm³ | 1.11 g/cm³ | Hydrometer/densitometer |
| Kev Ruaj Ntseg (6 lub hlis) | ≥95% kev khaws cia | ≥90% kev khaws cia | Khaws cia ntawm 25 ° C (qhov tsaus ntuj) |
Vim li cas ho xaiv peb cov Hydrogen Peroxide?
Kev Ntsuas Tshwj Xeeb: Peb muab 3% (kho mob/tsev neeg), 30% (kev lag luam), thiab 50-70% (siab huv) qib kom phim koj cov kev xav tau.
Cov Qauv Ntshiab Kawg: Cov hlau hnyav thiab cov khoom tsis huv uas tsawg ua kom sib haum nrog cov txheej txheem rhiab heev (piv txwv li, khoom siv hluav taws xob, tshuaj).
Kev Muab Khoom Ruaj Khov: Peb cov chaw tsim khoom (muaj peev xwm txhua xyoo: 100,000 tons) lav kev xa khoom raws sijhawm rau cov xaj ntau thiab me.
Zoo rau ib puag ncig: Yaj mus ua dej thiab pa oxygen — txhawb nqa cov hom phiaj kev ruaj khov (piv txwv li, hloov cov tshuaj chlorine).
Kev Txhawb Nqa: Peb pab neeg kws tshuaj muab kev taw qhia txog kev dilution, kev khaws cia, thiab kev siv kom zoo dua.
Tiv Tauj Peb
Yog xav paub tus nqi, cov qauv, lossis cov ntaub ntawv TDS/COA tag nrho, hu rau peb pab neeg muag khoom:
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