Terephthalic acid cas 100-21-0 / PTA
I-Terephthalic acid isetshenziselwa ukukhiqiza i-polyethylene terephthalate (isilwane), i-polymer esetshenziselwa kabanzi ukwenza amabhodlela epulasitiki, iziqukathi, kanye nemicu yokwenziwa. I-PET yaziwa ngamandla ayo, ukuqina okushisayo, kanye nokumelana komswakama. Ngaphezu kwalokho, i-Teerphthalic acid isetshenziselwa ukukhiqiza ezinye izinto ezahlukahlukene, kufaka phakathi:
1. Izindwangu: Kuyisithako esibalulekile ekukhiqizweni kwe-polyester fiber, esetshenziswa ezingutsheni nasezintweni zasendlini.
2. I-Resin: I-Teerephthalic acid isetshenziselwa ukulungiselela ama-resins ahlukahlukene kanye nengubo.
I-3. Ipulasitiki: Kubandakanya ukukhiqizwa kwezobunjiniyela ezidinga ukuqina okuphezulu kanye nokumelana kwamakhemikhali.
4. Izengezo: I-Teerephthalic acid ingasetshenziswa njengomphakathi wamakhemikhali ekuhlanganiseni kwezinye izinhlanganisela.
Igcwele ku-25 kg nge-drum ngayinye noma isuselwa kwizidingo zamakhasimende.
Ukuze ugcine ngokuphepha i-Terephthalic acid, landela lezi ziqondiso:
1. Isitsha: Gcina i-Terephthalic acid ezitsheni ezivalekile ezenziwe ngezinto ezifanele, njengengilazi noma i-polyethylene (HDPE ephezulu) ukuvikela ukungcoliswa nokutholwa komswakama.
2. Indawo: Gcina isitsha endaweni epholile, eyomile futhi enomoya owanele kude nokukhanya kwelanga okuqondile nemithombo yokushisa. Gwema ukugcinwa ezindaweni ezinomswakama ophezulu.
3. Ukushisa: Gcina izinga lokushisa lesitoreji ngaphakathi kobubanzi obunconyiwe, ngokujwayelekile ngaphansi kuka-25 ° C (77 ° F), ukuvikela ukonakala noma ushintsho ezizakhiweni.
4. Ilebula: Faka ilebula ngokucacile iziqukathi ngegama lamakhemikhali, imininingwane yengozi, kanye nosuku lokuthola ukuqinisekisa ukukhonjwa okufanele nokuphathwa.
I-5. Ukwahlukana: Sicela ugcine kude nezinto ezingahambelani, njenge-oxidants eqinile, ukuvikela noma yikuphi ukusabela okungenzeka.
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I-Teerephthalic acid ngokuvamile ithathwa njengenobuthi obuphansi, kepha isenezingozi ezithile zempilo ezimweni ezithile. Nawa amanye amaphuzu asemqoka ngokulimala kwawo okungenzeka kubantu:
1. Ukuxhumana kokuphefumula kanye nokuxhumana kwesikhumba: Ukuchayeka isikhathi eside uthuli lwe-terephthalic acid noma umphunga kungacasula ipheshana lokuphefumula, isikhumba namehlo. Kunconywa ukusebenzisa imishini efanelekile yokuvikela lapho iphatha lokhu okuqukethwe.
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4. Umthelela Wezemvelo: Yize i-Teerephthalic acid ayibangeli ukulimala okuqondile emzimbeni womuntu, uma ikhishwe ngamanani amakhulu, izoba nomthelela emvelweni, ngaleyo ndlela ithinta impilo yabantu.
Lapho uhambisa i-terephthalic acid, kubalulekile ukulandela izinyathelo ezithile zokuphepha ukuze uqinisekise ukuphepha nokuhambisana nemigomo. Nayi eminye imininingwane ebalulekile okufanele uyinake:
1. Ukupakisha: Sebenzisa iziqukathi ezifanele ezihambisana ne-Teerephthalic acid. Ngokuvamile, kufanele igcinwe esigodini esivalekile, esibhalwe esibhalwe esifakwe kwezinto ezingasabeli nge-acid.
2. Ilebula: Ilebula ngokusobala konke ukupakisha ngamagama amakhemikhali afanele, izimpawu eziyingozi kanye nokuphatha imiyalo. Qinisekisa ukuthi ilebula ihambisana nemitheshwana yasekhaya neyamanye amazwe.
3 I-Teerephthalic acid ayihlukaniswa njengento enhle, kepha kubalulekile ukuqinisekisa imithetho ethile.
4. Ukulawulwa kokushisa: gcina futhi uthumele i-terephthalic acid endaweni epholile neyomile ukuvikela ukonakaliswa noma ukusabela ngomswakama.
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I-6. Imishini yokuzivikela (i-PPE): Qinisekisa ukuthi abasebenzi abaphatha inqubo yezokuthutha bagqoka i-PPE efanelekile, njengamagilavu kanye nama-goggles, ukuvikela ukubonwa ngamehlo namehlo.
7. Izinqubo eziphuthumayo: Uma kwenzeka kuchitheka noma ukuvuza ngesikhathi sokuhamba, ukuthuthukisa izinqubo eziphuthumayo. Lokhu kubandakanya ukuba nekhithi yokuchitheka kanye nezinto zosizo lokuqala zilungele.
8. Imibhalo: gcina imibhalo efanele yokuthumela, kufaka phakathi amashidi wedatha yezokuphepha (SDS) nanoma yiziphi izimvume ezidingekayo noma izimemezelo.
