Cov hydrogen peroxide yog H₂O₂, qhov tsos yog cov xim tsis muaj xim thiab pob tshab, uas yog cov oxidant muaj zog, thiab cov kua dej aqueous yog tsim rau kev kho mob qhov txhab tshuaj tua kab mob thiab tshuaj tua kab mob thiab tshuaj tua kab mob. Feem ntau, nws yog decomposed rau hauv dej thiab oxygen, tab sis lub decomposition ceev yog heev qeeb, thiab qhov ceev ntawm accelerating nws cov tshuaj tiv thaiv yog ntxiv catalyst-manganese dioxide los yog irradiated nrog luv wavelerades. Oxygen thiab dej yuav tsim tom qab decomposition. Nws yog lub hom phiaj ntawm kev kuaj oxygen hauv tsev kawm qib siab chemistry. Txawm li cas los xij, hydrogen peroxide kuj yog cov carcinogen tso tawm los ntawm World Health Organization.
Chemistry
1. Oxidative (thawj carbonate] hauv cov roj pleev xim, cov tshuaj tiv thaiv hydrogen sulfide nyob rau hauv cov huab cua yog tsim los ua dub sulfide, thiab hydrogen peroxide ntxuav yuav siv tau) (alkaline nruab nrab)
2. Kev ua kom rov qab los.
3. Hauv 10% kuaj kua 10 ml, ntxiv sulfuric acid xeem (TS-241) 5 ml thiab poov tshuaj permanganate xeem (TS-193) 1 ml. Yuav tsum muaj huab cua npuas, thiab cov xim ntawm poov tshuaj permanganate ploj. Acacia yog acidic. Nws yog ib qho yooj yim rau tawg thaum muaj kab mob.
4. Noj 1 g (qhov tseeb rau 0.1 mg), dilute rau 250.0 mL nrog dej. Cov tshuaj no tau noj 10 ml ntawm dilute sulfate (TS-241) titration nrog 0.1 mol / L siv 0.1 mol / l. 0.1 mol / L ib milliliter. Potassium permanganate sib haum rau 1.70 mg ntawm hydrogen peroxide (H2O2).
5. Nyob rau hauv cov ntaub ntawv ntawm cov organic teeb meem, lub tshav kub dissipation yog depolored rau oxygen thiab dej, thiab cov poov tshuaj acid, poov tshuaj permanganate yog heev reactive. Txhawm rau tiv thaiv kom tsis txhob decomposition, cov kab stabilizer tuaj yeem ntxiv xws li sodium sodium sodium sodium sodium phosphate, thiab lwm yam.
6. Hydrogen peroxide yog ib qho tsis muaj zog acid: H2O2 = (reversible) = H ++ HO2- (ka = 2.4 × 10-12). Yog li ntawd, cov hlau peroxide tuaj yeem pom ua ntsev.
Lub hom phiaj tseem ceeb
1. Feem ntau yog siv rau kev ua kom tsis muaj menyuam thiab siv sab nraud, piv txwv li, ua cov tshuaj tua kab mob.
2. Ntsuas qhov zoo tshaj plaws ntawm cov ntshav: 6% ntawm hydrogen peroxide ntxiv rau 0.005% ntawm methylene xiav.
3, siab concentrations (ntau tshaj 10%), siv nyob rau hauv textiles, tawv, ntawv, ntoo tsim kev lag luam, raws li bleaching thiab tshem tawm cov neeg sawv cev.
4, hydrogen peroxide kuj yog ib qho ntawm cov khoom xyaw ntawm cov plaub hau zas plaub hau, kuj yog siv los ua cov khoom siv, tshuaj, tshuaj kho tus neeg sawv cev hlau, polymerization pib, lossis zoo li cov khoom siv hluavtaws organic (phtolol). Nws tseem tuaj yeem siv los ua lub foob pob hluav taws.
5. Muaj hydrogen peroxide (hydrogen peroxide) me ntsis siab dua cov dej, cov khoom siv tshuaj tsis ruaj khov, feem ntau khaws cia hauv hydrolysis ntawm 30% lossis 60%, thiab cov tshuaj aqueous feem ntau hu ua hydrogen peroxide. Hydrogen peroxide muaj zog oxidation thiab tsis muaj zog acidic.
Cov kev ceev faj
Cov khoom no yog ib qho muaj zog oxidant, uas yog ncaj qha illuminated los yog plua plav los yog lwm yam impurity mixing yuav ua rau decomposition loj heev, los yog txawm tawg. Tsis tas li ntawd, kev sib cuag mus ntev nrog cov khoom siv hluav taws xob xws li ntoo chips, fibers, thiab lwm yam, tuaj yeem ua rau nws tus kheej ignition.