ethylene oxide yog dab tsi?
Ethylene oxideyog ib qho organic compound nrog cov tshuaj formula C2H4O, uas yog cov tshuaj lom carcinogen thiab yav tas los siv los ua fungicides. Ethylene oxide yog nplaim taws thiab tawg, thiab tsis yooj yim rau kev thauj mus los ntev, yog li nws muaj zog hauv cheeb tsam. Nws yog dav siv hauv kev ntxhua khaub ncaws, tshuaj, luam ntawv thiab dyeing kev lag luam. Nws tuaj yeem siv los ua tus neeg sawv cev pib rau kev ntxuav cov neeg ua haujlwm hauv kev lag luam tshuaj lom neeg.
Thaum Lub Kaum Hli 27, 2017, cov npe ntawm cov carcinogens tso tawm los ntawm Lub Chaw Haujlwm Thoob Ntiaj Teb rau Kev Tshawb Fawb Txog Kev Mob Cancer ntawm Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb tau pib muab tso ua ke rau kev siv, thiab ethylene oxide tau suav nrog hauv cov npe ntawm Class 1 carcinogens.
2. Puas yog ethylene oxide muaj teeb meem rau tib neeg lub cev?
Ua phem,ethylene oxideyog cov kua dej tsis muaj xim tsis muaj xim ntawm qhov kub thiab txias, feem ntau khaws cia rau hauv lub tog raj kheej steel, lub siab-resistant aluminium fwj lossis iav fwj, thiab yog cov roj sterilizer. Nws muaj cov roj muaj zog nkag mus rau lub zog thiab muaj peev xwm tua cov kab mob muaj zog, thiab muaj txiaj ntsig zoo tua kab mob, kab mob thiab fungi. Nws tsis ua rau muaj kev puas tsuaj rau cov khoom feem ntau thiab tuaj yeem siv rau fumigation ntawm pluab, tawv, khoom siv kho mob, thiab lwm yam. Lub ncu yuav kub hnyiab lossis tawg thaum raug nplaim taws. Nws yog corrosive rau cov kab mob ua pa thiab tuaj yeem ua rau mob plab xws li ntuav, xeev siab, thiab raws plab. Lub siab thiab lub raum ua haujlwm puas tsuaj thiab hemolysis kuj tuaj yeem tshwm sim. Kev sib cuag ntawm daim tawv nqaij ntau dhau nrog cov tshuaj ethylene oxide yuav ua rau mob kub hnyiab, thiab txawm tias hlwv thiab dermatitis. Kev kis mus ntev yuav ua rau mob qog noj ntshav. Ethylene oxide yog ib yam tshuaj lom heev hauv peb lub neej. Thaum peb siv ethylene oxide rau tshuaj tua kab mob, peb yuav tsum tau nruab nrog cov khoom tiv thaiv. Peb yuav tsum xyuam xim rau kev nyab xeeb thiab siv nws tsuas yog thaum muaj qee yam ua tau raws li.
3. Yuav ua li cas yog tias noj ethylene oxide?
Thaum twgethylene oxidekub hnyiab, nws thawj zaug reacts nrog oxygen los tsim carbon dioxide thiab dej. Cov kev sib npaug ntawm cov tshuaj tiv thaiv yog raws li nram no: C2H4O + 3O2 -> 2CO2 + 2H2O Nyob rau hauv cov ntaub ntawv ntawm tiav combustion, cov khoom combustion ntawm ethylene oxide tsuas yog carbon dioxide thiab dej. Qhov no yog ib qho kev sib raug zoo ntawm combustion txheej txheem. Txawm li cas los xij, nyob rau hauv cov ntaub ntawv ntawm tsis tiav combustion, carbon monoxide kuj tsim. Cov pa roj carbon monoxide yog cov roj uas tsis muaj xim, tsis muaj ntxhiab tsw, uas muaj tshuaj lom rau tib neeg lub cev. Thaum cov pa roj carbon monoxide nkag mus rau tib neeg lub cev, nws yuav ua ke nrog hemoglobin kom txo cov pa oxygen hauv cov ntshav, ua rau muaj kev lom thiab tuag taus.
4. Dab tsi yog ethylene oxide hauv cov khoom siv niaj hnub?
Nyob rau hauv chav tsev kub, ethylene oxide yog ib qho hluav taws kub, tsis muaj xim tsis muaj roj nrog cov ntxhiab tsw qab. Nws yog tsuas yog siv nyob rau hauv zus tau tej cov lwm yam tshuaj, xws li antifreeze. Ib qho me me ntawm ethylene oxide yog siv los ua tshuaj tua kab thiab tshuaj tua kab mob. Lub peev xwm ntawm ethylene oxide los ua kom puas DNA ua rau nws muaj zog bactericide, tab sis kuj tuaj yeem piav qhia nws cov haujlwm carcinogenic.
Ethylene oxide yog ntau yam khoom siv hauv kev tsim cov khoom siv tshuaj lom neeg siv hauv ntau hom kev lag luam thiab cov khoom siv niaj hnub, suav nrog cov khoom siv hauv tsev, cov khoom tu tus kheej, thiab cov ntaub thiab textiles. Kev siv me me tab sis tseem ceeb ntawm ethylene oxide yog nyob rau hauv kev tua kab mob ntawm cov khoom siv kho mob. Ethylene oxide tuaj yeem ua kom tsis muaj menyuam cov cuab yeej kho mob thiab pab tiv thaiv kab mob thiab kis kab mob.
5. Cov zaub mov twg muaj ethylene oxide?
Hauv kuv lub tebchaws, kev siv cov tshuaj ethylene oxide rau cov khoom noj tshuaj tua kab mob nrog rau cov ice cream yog txwv nruj heev.
Txog qhov kawg no, kuv lub teb chaws kuj tau tsim tshwj xeeb rau "GB31604.27-2016 National Food Safety Standard for the Determination of Ethylene Oxide and Propylene Oxide in Plastics of Food Contact Materials and Products" los tswj cov ntsiab lus ntawm ethylene oxide hauv cov khoom ntim. Yog tias cov khoom ua tau raws li tus qauv no, tsis tas yuav txhawj xeeb txog cov khoom noj uas muaj kab mob ethylene oxide.
6. Lub tsev kho mob puas siv ethylene oxide?
Ethylene oxide, hu ua ETO, yog cov roj tsis muaj xim uas ua rau tib neeg lub qhov muag, tawv nqaij thiab ua pa. Nyob rau hauv tsawg concentrations, nws yog carcinogenic, mutagenic, kev ua me nyuam thiab paj hlwb teeb meem. Cov ntxhiab tsw ntawm ethylene oxide yog imperceptible hauv qab 700ppm. Yog li ntawd, ib qho ethylene oxide detector yuav tsum tau soj ntsuam mus sij hawm ntev ntawm nws cov concentration los tiv thaiv kev puas tsuaj rau tib neeg lub cev. Txawm hais tias thawj daim ntawv thov ntawm ethylene oxide yog cov khoom siv raw rau ntau cov organic synthesis, lwm daim ntawv thov tseem ceeb yog kev tua kab mob hauv tsev kho mob. Ethylene oxide yog siv los ua sterilizer rau chav thiab cov ntaub ntawv kub. Tam sim no dav siv nyob rau hauv minimally invasive phais cov txheej txheem. Thaum lwm txoj hauv kev rau ETO, xws li peracetic acid thiab hydrogen peroxide plasma gas, tseem muaj teeb meem, lawv cov txiaj ntsig thiab kev siv tau raug txwv. Yog li ntawd, ntawm no, ETO sterilization tseem yog txoj kev xaiv.
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koj puas tuaj yeem haus cov pa roj carbon dioxide?