PhenolYikhompawundi eqhelekileyo ephilayo, ekwabizwa ngokuba yi-carbolic acid.Yikristale engenambala okanye emhlophe eqinileyo kunye nevumba elibi elicaphukisayo.Isetyenziswa kakhulu kwimveliso yedayi, ii-pigments, i-adhesives, i-plasticizers, i-lubricant, i-disinfectants, njl njl. Ukongeza, ikwayimveliso ebalulekileyo ephakathi kwishishini lemichiza.

Phenol

 

Ekuqaleni kwenkulungwane yama-20, i-phenol yafunyaniswa ukuba inetyhefu enamandla emzimbeni womntu, kwaye ukusetyenziswa kwayo ekuveliseni izibulala-ntsholongwane kunye nezinye iimveliso zatshintshwa ngokuthe ngcembe zezinye izinto.Ngomnyaka we-1930, ukusetyenziswa kwe-phenol kwizinto zokuthambisa kunye nezindlu zangasese zavalwa ngenxa yetyhefu enzulu kunye nevumba elicasulayo.Ngeminyaka yee-1970, ukusetyenziswa kwephenol kuninzi lwezicelo zemizi-mveliso kwaye kwavalwa ngenxa yongcoliseko olumandla lokusingqongileyo kunye neengozi zempilo yabantu.

 

EUnited States, ukusetyenziswa kwe-phenol kumashishini kuye kwalawulwa ngokungqongqo ukususela ngo-1970.I-Arhente yoKhuseleko lweNdalo yase-US (i-EPA) iseke uluhlu lwemithetho kunye nemimiselo yokuthintela ukusetyenziswa kunye nokukhutshwa kwe-phenol ukwenzela ukukhusela impilo yabantu kunye nokusingqongileyo.Ngokomzekelo, imigangatho yokukhutshwa kwe-phenol kumanzi amdaka ichazwe ngokungqongqo, kwaye ukusetyenziswa kwe-phenol kwiinkqubo zokuvelisa kuthintelwe.Ukongezelela, i-FDA (Ukutya kunye noLawulo lweDrugs) iye yaseka uluhlu lwemimiselo yokuqinisekisa ukuba izongezo zokutya kunye nezithambiso aziqukethe i-phenol okanye i-derivatives yayo.

 

Ekugqibeleni, nangona i-phenol inoluhlu olubanzi lwezicelo kwishishini kunye nobomi bemihla ngemihla, ubuthi bayo kunye nephunga elicasulayo liye labangela ingozi enkulu kwimpilo yabantu kunye nokusingqongileyo.Ke ngoko, amazwe amaninzi athathe amanyathelo okuthintela ukusetyenziswa kunye nokukhutshwa kwayo.EUnited States, nangona ukusetyenziswa kwe-phenol kumashishini kuye kwalawulwa ngokungqongqo, kusasetyenziswa ngokubanzi kwizibhedlele nakwamanye amaziko onyango njengesibulala-ntsholongwane kunye nesibulala-ntsholongwane.Nangona kunjalo, ngenxa yetyhefu ephezulu kunye neengozi zempilo ezinokubakho, kucetyiswa ukuba abantu baphephe ukunxibelelana ne-phenol kangangoko kunokwenzeka.


Ixesha lokuposa: Dec-11-2023