Hydrogen Peroxide vs Rubbing Cawv
Hydrogen peroxide thiab cawv cawv feem ntau pom muaj nyob hauv tsev. Ob leeg siv los ua kom tsis muaj menyuam, ntxuav qhov txhab.
Hydrogen Peroxide
Hydrogen peroxide yog daim ntawv yooj yim tshaj plaws ntawm peroxide, uas txhais tau tias yog H 2O2 Nws yog cov kua ntshiab nrog lub hau. point 150 oC. Nws yog miscible tag nrho nrog dej, txawm li cas los xij, tuaj yeem sib cais tag nrho los ntawm distillation vim tias nws cov ntsiab lus kub yog siab dua li cov dej. Hydrogen peroxide yog ib qho muaj zog oxidizing thiab txo tus neeg sawv cev. Hydrogen peroxide yog nonlinear, uas tsis yog hom kab mob. Nws muaj cov qauv qhib phau ntawv.
Peroxides yog tsim los ntawm cov khoom lag luam ntawm ntau yam tshuaj tiv thaiv lossis ua ib qho nruab nrab. Hom kev tshwm sim no tshwm sim hauv peb lub cev ib yam nkaus. Peroxide muaj cov tshuaj lom hauv peb lub hlwb. Yog li ntawd, lawv yuav tsum tau neutralized sai li sai tau thaum lawv tsim. Peb lub hlwb muaj ib tug tshwj xeeb mechanism rau qhov ntawd. Muaj ib qho organelle hu ua peroxisomes hauv peb cov hlwb, uas muaj cov enzyme catalase. Qhov no enzyme catalyses lub decomposition ntawm hydrogen peroxide rau hauv dej thiab oxygen, yog li ua detoxification muaj nuj nqi. Hydrogen peroxide muaj cov khoom tsis zoo, xws li decomposition rau oxygen thiab dej nrog evolution ntawm tshav kub, los yog decomposes vim muaj kab mob los yog kev sib cuag nrog active nto, vim lub tsim ntawm oxygen siab nce nyob rau hauv lub ntim thiab nws kuj tuaj yeem tsim cov khoom tawg. Kev ua kom dawb huv ntawm hydrogen peroxide yog vim oxidation thiab tso tawm oxygen. Cov pa oxygen no yuav ua rau cov xim muaj xim, ua kom tsis muaj xim.
H2O2 → H2O + O
O + Xim Xim → Xim tsis muaj xim
Lwm yam tsis yog tshuaj dawb, H2O2 is siv cov oxidant rau foob pob hluav taws roj, tsim cov epoxides, tshuaj thiab zaub mov Cov khoom lag luam, ua cov tshuaj tua kab mob thiab lwm yam. Hydrogen peroxide yog khaws cia rau hauv paraffin wax coated iav, yas los yog Teflon fwj.
Rubbing Cawv
Denatured cawv yog ethanol nrog rau lwm yam additives, uas ua rau nws tsis zoo rau haus. Qhov no tseem hu ua methylated ntsuj plig vim tias ua ntej, lub ntsiab ntxiv rau qhov no yog methanol uas yog kwv yees li 10%. Lwm yam tshaj li methanol, lwm yam additives xws li isopropyl cawv, acetone, methyl ethyl ketone, methyl isobutyl ketone, thiab denatonium kuj tau ntxiv los ua denatured cawv. Ntxiv cov molecules ntxiv no tsis cuam tshuam rau cov tshuaj lom neeg ntawm ethanol tab sis ua rau nws lom heev. Qee zaum denatured cawv tej zaum yuav muaj xim vim yog ntxiv cov dyes.
Rubbing cawv yog hom cawv denatured. Nws muaj 70-95% ethanol thiab lwm yam additives. Yog li ntawd, raws li tau hais los saum toj no, nws yog tshuaj lom heev thiab tsis haum rau kev noj. Nws yog tsuas yog siv los ua tshuaj tua kab mob ntawm tib neeg daim tawv nqaij. Nws kuj yog siv los ntxuav cov cuab yeej kho mob kom lawv tsis txhob muaj kab mob thiab fungi. Lwm yam tshaj li ib txwm rubbing cawv, muaj lwm yam hu ua isopropyl rubbing cawv, uas feem ntau yog isopropyl cawv. Nws yog siv los ua cov kuab tshuaj lossis tshuaj ntxuav.
Qhov txawv ntawm Hydrogen Peroxide thiab Rhaub Dej Cawv yog dab tsi?
• Rhaub cawv muaj cawv. Hydrogen peroxide tsis yog cawv txawm tias nws muaj O-H txuas.
• Hydrogen peroxide muaj cov tshuaj bleaching uas rub cov cawv tsis muaj.
• Rubbing cawv yog sib xyaw ua ke.
