Yintoni i-ethylene oxide?
I-ethylene oxideyi-organic compound ene-chemical formula C2H4O, eyi-carcinogen eyityhefu kwaye yayisetyenziswa ngaphambili ukwenza imichiza yokungunda. I-ethylene oxide iyatsha kwaye iyaqhuma, kwaye akulula ukuyihambisa kumgama omde, ngoko ineempawu eziqinileyo zengingqi. Isetyenziswa kakhulu kumashishini okuhlamba, amayeza, ukuprinta kunye nokudaya. Ingasetyenziswa njenge-arhente yokuqala kwii-agent zokucoca kumashishini anxulumene neekhemikhali.
Ngo-Oktobha 27, i-2017, uluhlu lwee-carcinogens ezikhutshwe yi-International Agency for Research on Cancer ye-World Health Organization yahlanganiswa ekuqaleni ukuze kubhekiselwe kuyo, kwaye i-ethylene oxide ifakwe kuluhlu lwe-Class 1 carcinogens.
2. Ngaba i-ethylene oxide iyingozi kumzimba womntu?
Kuyingozi,ethylene oxidelulwelo olungenambala olucacileyo kubushushu obuphantsi, luhlala lugcinwe kwiisilinda zentsimbi, iibhotile ze-aluminiyam ezinganyangekiyo kuxinzelelo okanye iibhotile zeglasi, kwaye sisicoci segesi. Inamandla okungena ngerhasi eyomeleleyo kunye nobuchule obunamandla bokubulala iintsholongwane, kwaye inesiphumo esihle sokubulala kwiibhaktheriya, iintsholongwane kunye nokungunda. Ayibangeli monakalo kwizinto ezininzi kwaye ingasetyenziselwa ukutshisa uboya, isikhumba, izixhobo zonyango, njl njl. Umphunga uya kutshisa okanye uqhume xa ubonakaliswe kwidangatye elivulekileyo. Iyagqwesa kwiphecana lokuphefumla kwaye inokubangela ukuphazamiseka kwesisu njengokugabha, isicaphucaphu, kunye norhudo. Ukulimala kwesibindi kunye nezintso kunye ne-hemolysis inokwenzeka. Ukudibanisa ngokugqithiseleyo kwesikhumba kunye nesisombululo se-ethylene oxide kuya kubangela intlungu evuthayo, kunye ne-blisters kunye ne-dermatitis. Ukuba sesichengeni ixesha elide kunokubangela umhlaza. I-ethylene oxide yinto enetyhefu kakhulu ebomini bethu. Xa sisebenzisa i-ethylene oxide kwi-disinfection, kufuneka sixhotyiswe ngezixhobo zokukhusela. Kufuneka sinikele ingqalelo kukhuseleko kwaye silusebenzise kuphela xa iimeko ezithile zihlangatyezwana nazo.
3. Kwenzeka ntoni ukuba i-ethylene oxide isetyenzisiwe?
Niniethylene oxideukutsha, kuqala isabela ngeoksijini ukuvelisa ikharbon diokside kunye namanzi. I-equation yokuphendula ngolu hlobo lulandelayo: C2H4O + 3O2 -> 2CO2 + 2H2O Kwimeko yokutsha okupheleleyo, iimveliso zokutsha ze-ethylene oxide ziyi-carbon dioxide kunye namanzi kuphela. Le yinkqubo yokutshisa ehambelana nokusingqongileyo. Nangona kunjalo, kwimeko yokutsha okungaphelelanga, i-carbon monoxide nayo yenziwe. Ikharbon monoxide yigesi engenambala, engenavumba neyityhefu kakhulu emzimbeni womntu. Xa i-carbon monoxide ingena emzimbeni womntu, iya kudibanisa ne-hemoglobin ukunciphisa umxholo we-oksijini egazini, ekhokelela kwityhefu kunye nokufa.
4. Yintoni i-ethylene oxide kwiimveliso zemihla ngemihla?
Kwiqondo lobushushu begumbi, i-ethylene oxide yigesi evuthayo, engenambala enevumba elimnandi. Isetyenziswa ikakhulu kwimveliso yeminye imichiza, kuquka i-antifreeze. Izixa ezincinci ze-ethylene oxide zisetyenziswa njengezibulali-zinambuzane kunye nezibulala-ntsholongwane. Ukukwazi kwe-ethylene oxide ukonakalisa i-DNA kuyenza ibe yi-bactericide enamandla, kodwa inokuchaza nomsebenzi wayo we-carcinogenic.
I-Ethylene oxide iyikhompawundi eguquguqukayo esetyenziselwa ukuveliswa kwezinye iimveliso zeekhemikhali ezisetyenziswa kwiintlobo ezahlukeneyo zezicelo zoshishino kunye neemveliso zansuku zonke zabathengi, kubandakanywa abacoci bendlu, iimveliso zokunyamekela komntu, kunye neendwangu kunye neendwangu. Ukusetyenziswa okuncinci kodwa okubalulekileyo kwe-ethylene oxide kwi-disinfection yezixhobo zonyango. I-ethylene oxide inokubulala iintsholongwane izixhobo zonyango kwaye incede ukuthintela izifo nosulelo.
5. Kokuphi ukutya okune-ethylene oxide?
Kwilizwe lam, ukusetyenziswa kwe-ethylene oxide kwi-disinfection yokutya kubandakanya i-ice cream akuvumelekanga ngokungqongqo.
Ukuza kuthi ga ngoku, ilizwe lam liye laqulunqa ngokukodwa "i-GB31604.27-2016 yeSizwe yoKhuseleko loKutya koMgangatho wokuQinisekiswa kwe-Ethylene Oxide kunye nePropylene Oxide kwiiPlastiki zoKutya kunye neMveliso" ukulawula umxholo we-ethylene oxide kwizinto zokupakisha. Ukuba izinto eziphathekayo zihlangabezana nalo mgangatho, akukho mfuneko yokukhathazeka malunga nokutya okungcoliswe yi-ethylene oxide.
6. Ngaba isibhedlele sisebenzisa i-ethylene oxide?
I-Ethylene oxide, ebizwa ngokuba yi-ETO, yigesi engenambala ecaphukisayo emehlweni abantu, ulusu kunye nomgudu wokuphefumla. Kwiindawo eziphantsi, i-carcinogenic, i-mutagenic, inzala kunye nenkqubo ye-nervous iyingozi. Ivumba le-ethylene oxide alibonakali ngaphantsi kwe-700ppm. Ngoko ke, i-ethylene oxide detector iyadingeka ukuze kubekwe iliso ixesha elide lokuxinwa kwayo ukukhusela umonakalo kumzimba womntu. Nangona usetyenziso oluphambili lwe-ethylene oxide luyinto ekrwada kwizinto ezininzi ze-organic synthesis, esinye isicelo esiphambili kuku-disinfection kwezixhobo ezibhedlele. I-ethylene oxide isetyenziswa njengesibulala-ntsholongwane kumphunga kunye nemathiriyeli ebuthathaka kubushushu. Ngoku isetyenziswa ngokubanzi kwiinkqubo zotyando ezingeyona invasive. Nangona ezinye iindlela ze-ETO, ezifana ne-peracetic acid kunye ne-hydrogen peroxide plasma gas, zihlala ziyingxaki, ukusebenza kwazo kunye nokusebenza kwazo kulinganiselwe. Ke ngoko, ngeli xesha, ukuvala inzala kwe-ETO kuhlala kuyeyona ndlela ikhethwayo.
