IChelate, ichelate eyenziwe zii-chelating agents, isuka kwigama lesiGrike elithi Chele, elithetha uzipho loononkala.Iichelates zifana neenzipho zoononkala eziphethe ii-ion zesinyithi, ezizinzileyo kwaye kulula ukuzisusa okanye ukusebenzisa ezi ion zentsimbi.Ngo-1930, i-chelate yokuqala yaqulunqwa eJamani - i-EDTA (i-ethylenediamine tetraacetic acid) i-chelate yonyango lwezigulane ezinetyhefu enzima, kwaye i-chelate yaphuhliswa kwaye isetyenziselwa ukuhlamba imichiza imihla ngemihla, ukutya, ishishini kunye nezinye izicelo.
Okwangoku, abavelisi abaphambili beearhente ze-chelating kwihlabathi babandakanya i-BASF, iNorion, iDow, iDongxiao Biological, iShijiazhuang Jack njalo njalo.
Ummandla wase-Asiya-Pacific yeyona marike inkulu yee-arhente ze-chelating, enesabelo esingaphezulu kwe-50% kunye nobungakanani bemarike obuqikelelwayo obungaphezulu kwe-1 yeebhiliyoni zeedola, kunye nezicelo eziqhelekileyo kwindawo yokucoca, unyango lwamanzi, ukhathalelo lomntu, iphepha, ukutya kunye nemizi-mveliso yesiselo. .
(Isakhiwo semolekyuli ye-agent ye-chelating EDTA)
Ii-agent ze-chelating zilawula i-ion zetsimbi ngokutshisa i-multi-ligands kunye ne-metal ion complexes ukwenza i-chelates.
Ukusuka kule ndlela, kunokuqondwa ukuba iimolekyuli ezininzi ezinama-multi-ligand zinamandla anjalo e-chelation.
Enye yezona zinto ziqhelekileyo yile EDTA ingentla, enokubonelela nge-athom ye-nitrogen kunye ne-4 i-athom ye-oxygen ye-carboxyl ukusebenzisana nesinyithi, kwaye ingasebenzisa i-molecule ye-1 ukubopha ngokuqinileyo i-calcium ion efuna ulungelelwaniso lwe-6, ivelisa imveliso ezinzileyo kakhulu ebalaseleyo. amandla e-chelation.Ezinye i-chelators ezisetyenziswa ngokuqhelekileyo ziquka i-sodium phytate efana ne-sodium gluconate, i-sodium glutamate diacetate tetrasodium (GLDA), i-sodium amino acids ezifana ne-methylglycine diacetate trisodium (MGDA), kunye ne-polyphosphates kunye ne-polyamines.
Njengoko sonke siyazi, nokuba kumanzi ompompo okanye emanzini endalo, kukho i-calcium, i-magnesium, i-plasma yensimbi, ezi ion zetsimbi ekutyebiseni kwexesha elide, ziya kuzisa ezi ziphumo zilandelayo kubomi bethu bemihla ngemihla:
1. Ilaphu alicocwanga ngokufanelekileyo, libangela ukubekwa kwesikali, libe lukhuni kwaye libe mnyama.
2. Akukho arhente yokucoca efanelekileyo kwindawo enzima, kunye neediphozithi zesikali
3. Ukulinganisa iidiphozithi kwi-tableware kunye ne-glassware
Ubunzima bamanzi bubhekisela kumxholo we-calcium kunye ne-magnesium ions emanzini, kwaye amanzi anzima aya kunciphisa umphumo wokuhlamba.Kwiimveliso zokucoca, i-agent ye-chelating inokusabela nge-calcium, i-magnesium kunye nezinye i-ion zetsimbi emanzini, ukwenzela ukuthambisa umgangatho wamanzi, ukukhusela i-calcium kunye ne-magnesium plasma ekuphenduleni kunye ne-agent esebenzayo kwi-detergent, kwaye ugweme ukuchaphazela umphumo wokuhlamba. , ngaloo ndlela kuphuculwe ukusebenza kakuhle kwemveliso yokuhlamba.
Ukongezelela, i-chelating agents nazo zinokwenza ukubunjwa kwe-detergent kuzinzile kwaye kuncinci ukubola xa kushushu okanye kugcinwe ixesha elide.
Ukongezwa kwe-agent ye-chelating kwi-detergent yokuhlamba impahla kunokuphucula amandla ayo okucoca, ngakumbi kwiindawo apho umphumo wokuhlamba uchaphazeleka kakhulu ngobunzima, njengasenyakatho, kumzantsi-ntshona kunye nezinye iindawo ezinobunzima obukhulu bamanzi, i-agent ye-chelating inokuthintela amabala amanzi kunye namabala. ukusuka ekuhlaliseni phezu kwengubo, ukwenzela ukuba i-detergent ifikeleleke kwaye ibambelele ngokulula kumphezulu wempahla, ukuphucula umphumo wokuhlamba ngexesha elifanayo.Ukuphucula ubumhlophe kunye nokuthamba, ukusebenza okubonakalayo akukho grey kwaye yome nzima.
Kwakhona ekucoceni komhlaba onzima kunye nokucoca i-tableware, i-agent ye-chelating kwi-detergent inokuphucula ukuchithwa kunye nokusabalalisa amandla okucoca, ukwenzela ukuba i-stain kunye nesikali kube lula ukususa, kunye nokusebenza okucacileyo kukuba isikali asikwazi ukuhlala. umphezulu obala ngakumbi, kwaye iglasi ayixhomeki ifilimu yamanzi.I-Chelating agents nazo zinokudibanisa ne-oksijini emoyeni ukuze zenze ii-complexes ezizinzile ezivimbela i-oxidation yeendawo zetsimbi.
Ukongezelela, umphumo we-chelating we-chelating agents kwi-iron ion nazo zisetyenziselwa ukucoca imibhobho yokususa i-rust.
Ixesha lokuposa: Jul-03-2024
