Dioxane? Kuyindaba nje yokubandlululwa

Yini i-dioxane? Kwavelaphi?

I-Dioxane, indlela eyiyo yokubhala nguDioxane. Ngoba ububi bunzima kakhulu ukubhala, kule ndatshana sizosebenzisa amagama ahlukahlukene ajwayelekile esikhundleni salokho. Kuyinto ehlanganisiwe ye-organic, eyaziwa nangokuthi i-dioxane, 1, 4-dioxane, uketshezi olungenamibala. Ubuthi be-Dioxane obunobuthi bunobuthi obuphansi, inemiphumela yokubulala izinzwa futhi evuselelayo. Ngokusho kwekhodi yamanje yezokuphepha yezimonyo eChina, iDioxane iyingxenye esenqatshelwe yezimonyo. Njengoba kwenqatshelwe ukwengeza, kungani ama-cosmetics asenokutholwa kwe-dioxane? Ngenxa yezizathu ezingenakugwenywa ngobuchwepheshe, kungenzeka ukuthi i-dioxane yethulwe kwizimonyo njengokungcola. Ngakho-ke yini ukungcola kwezinto eziluhlaza?

Enye yezithako zokuhlanza ezisetshenziswa kabanzi kuma-shampoos kanye nokuhlanza umzimba ngamafutha i-sodium utshwala utshwala obunamafutha, eyaziwa nangokuthi ama-sodium aes noma ama-sles. Le ngxenye ingenziwa kusuka kumafutha entende wemvelo noma u-petroleum njengezinto zokwakha ezivukile zibe notshwala onamafutha, kodwa zihlelwe ngochungechunge lwezinyathelo ezinjenge-ethaxylation, isibabule, nokungathathi hlangothi. Isinyathelo esingukhiye i-ethexylation, kulesi sinyathelo senqubo yokusabela, udinga ukusebenzisa impahla eluhlaza ye-ethylene oxide, okuhambisana ne-ethylene okthestus embonini yokulinganisa, kunayo nengxenye ye-ethylene oxide (e-eth) i-ethylene actry (eo) ukuguqulwa kwamangqamuzana amabili okukhiqiza umkhiqizo, Lokho wukuthi, isitha sakwaDioxane, ukusabela okuthile kungakhonjiswa kulokho okulandelayo:

Ngokuvamile, abakhiqizi bezinto ezibonakalayo abaluhlaza bazobe nezinyathelo ezizayo zokuhlukanisa futhi bahlanze i-DIOXAANE, abakhiqizi abahlukahlukene abaluhlaza abazoba namazinga ahlukene, abakhiqizi bezimo zomculo abahlukahlukene bazolawula le nkomba, ngokuvamile cishe ama-20 kuye ku-40 kuye ku-40ppm. Ngokuqondene nezinga lokuqukethwe kumkhiqizo osuqediwe (njenge-shampoo, ukugeza umzimba), azikho izinkomba ezithile zamazwe aphesheya. Ngemuva kwesehlakalo se-Bang Shampoo ngo-2011, iChina setha indinganiso yemikhiqizo eqediwe ngaphansi kwe-30ppm.

I-DIOXAne ibangela umdlavuza, ingabe iyabangela ukukhathazeka ngokuphepha?

Njengoba impahla eluhlaza esetshenziswa kusukela ngeMpi Yezwe II, i-sodium sulfate (ama-sles) kanye nomkhiqizo wayo we-dioxane bafundwe kakhulu. I-United States Food and Drug Administration (FDA) ibilokhu ifunda i-DIOXAANE emikhiqizweni yabathengi iminyaka engama-30, futhi i-Health Canada yaphetha ngokuthi ubukhona bemininingwane ye-DOSCANE emikhiqizweni yezimonyo akubeki engcupheni impilo kubathengi, ngisho nezingane (Canada). Ngokusho kweKhomishini Yezempilo Yomsebenzi Kazwelonke wase-Australia, umkhawulo ofanele we-DIOXAWE KWI-DIOXAWE GASS yi-30ppm, kanye nomkhawulo ophezulu we-abicologically wamukelekile yi-100ppm. E-China, ngemuva kuka-2012, isilinganiso semali esingu-30PPM sokuqukethwe kwe-DIOXAne kwezimonyo kungaphansi komkhawulo ophezulu owamukelekayo we-100ppm ngaphansi kwezimo ezijwayelekile zokusetshenziswa.

Ngakolunye uhlangothi, kufanele kugcizelelwe ukuthi umkhawulo waseChina weDioxane kumazinga wezimonyo ungaphansi kwe-30ppm, okuyisilinganiso esiphakeme emhlabeni. Ngoba eqinisweni, amazwe amaningi nezifunda zinemikhawulo ephezulu kokuqukethwe kwe-dioxane kunezindinganiso zethu noma azikho amazinga acacile:

Eqinisweni, amanani alandelwayo e-dioxane nawo ajwayelekile emvelweni. Izinto ezinobuthi ze-US kanye neRegistry Registry zihlu lwe-DIOXAWANE njengokutholakala enkukhu, utamatisi, shrimp ngisho namanzi ethu okuphuza. Imihlahlandlela ye-World Health Organisation yokuphuza ikhwalithi yamanzi (uhlelo lwesithathu) Yisho ukuthi umkhawulo we-dioxane emanzini u-50 μg / l.

Ngakho-ke ukufingqa inkinga ye-carcinogenic kaDioxane emshweni owodwa, okungukuthi: Kungakhathalekile ukuthi umthamo ukhulume ngokulimala kungukulimala.

Ukwehlisa okuqukethwe kwe-dioxane, kungcono ikhwalithi, kwesokudla?

I-Dioxane akuyona ukuphela kwenkomba yekhwalithi ye-sles. Ezinye izinkomba ezifana nenani lamakhompiyutha angenakunqotshwa kanye nenani lezinto ezicasulayo emkhiqizweni nazo zibalulekile ukucubungula.

Ngaphezu kwalokho, kubalulekile ukuqaphela ukuthi ama-sles nawo eza ngosayizi ahlukene, umehluko omkhulu kakhulu ngokuba ngezinga le-ethexylation, amanye ane-2, 3 noma ngisho ne-4 eo (vele, imikhiqizo enezindawo zedesimali ezinjenge-1.3 no-2.6 nazo zingakhiqizwa). Lapho kukhuphuka izinga lokukhuphuka kwe-ethexidation, okungukuthi, likhuphuka inani le-EO, okuphezulu kokuqukethwe kwe-dioxane okukhiqizwa ngaphansi kwenqubo efanayo nemibandela yokuhlanza.

Kuyathakazelisa-ke nokho ukuthi isizathu sokwandisa i-EO ukunciphisa okucasulayo kwama-sles asetshenzisiwe, kanye nenani le-EO SLES, okucasulayo kancane esikhunjeni, okungukuthi, okuphambene nalokho. Ngaphandle kwe-EO, yi-SLS, engathandwa yizindawo, okuyisithako esishukumisayo kakhulu.

Ngakho-ke, okuqukethwe okuphansi kwe-dioxane akusho ukuthi empeleni kuyinto enhle eluhlaza. Ngoba uma inani le-EO lincane, ukucasuka kwezinto ezingavuthiwe kuzoba mkhulu

Ngokufigqiwe:

I-Dioxane akuyona isithako esingezwe ngamabhizinisi, kepha impahla eluhlaza okumele ihlale ezindaweni eziluhlaza ezinjenge-sles, okunzima ukuyigwema. Akukhona kuphela kuma-sles, eqinisweni, inqobo nje uma kwenziwa i-ethoxtlation, kuzoba khona amanani e-dioxane, futhi ezinye izinto zokunakekelwa kwesikhumba ziqukethe i-dioxane. Ukusuka endaweni yokubuka kokuhlola ubungozi, njengento esele, asikho isidingo sokuphishekela okuqukethwe okungu-0 okuphelele, thatha ubuchwepheshe bokutholwa kwamanje, "kungatholakali" akusho ukuthi okuqukethwe kungu-0.

Ngakho-ke, ukukhuluma ngokulimaza ngaphezu komthamo ukuba yi-gangster. Ukuphepha kweDioxane kufundwa iminyaka eminingi, futhi sekusungulwe amazinga afanele namazinga anconyiwe, futhi asala ngaphansi kwe-100PPM kubhekwa njengokuphephile. Kepha amazwe anjenge-European Union awazange akwenze kube yindinganiso ephoqelekile. Izidingo ezifuywayo zokuqukethwe kwe-dioxane emikhiqizweni zingaphansi kwe-30ppm.

Ngakho-ke, i-dioxane eShampoo ayidingi ukukhathazeka ngomdlavuza. Ngokuqondene ne-madinformation kwabezindaba, manje usuqonda ukuthi kungukuthola ukunakwa.