Chelate, chelate yopangidwa ndi chelating agents, imachokera ku liwu lachi Greek Chele, kutanthauza nkhanu.Chelates ali ngati nkhanu zokhala ndi ayoni zitsulo, zomwe zimakhala zokhazikika komanso zosavuta kuchotsa kapena kugwiritsa ntchito ayoni achitsulo.Mu 1930, chelate yoyamba idapangidwa ku Germany - EDTA (ethylenediamine tetraacetic acid) chelate zochizira odwala poyizoni wazitsulo zolemera, ndiyeno chelate idapangidwa ndikutsuka tsiku lililonse, chakudya, mafakitale ndi ntchito zina.
Pakadali pano, omwe amapanga ma chelating agents padziko lonse lapansi akuphatikizapo BASF, Norion, Dow, Dongxiao Biological, Shijiazhuang Jack ndi zina zotero.
Dera la Asia-Pacific ndiye msika waukulu kwambiri wama chelating agents, omwe ali ndi magawo opitilira 50% komanso kukula kwa msika wopitilira US $ 1 biliyoni, ndikugwiritsa ntchito kwambiri m'mafakitale otsukira, opangira madzi, chisamaliro chamunthu, mapepala, chakudya ndi chakumwa. .
(Mapangidwe a maselo a chelating agent EDTA)
Chelating agents amawongolera ma ion zitsulo poyesa ma ligand awo ambiri ndi ma ion complexes kuti apange chelates.
Kuchokera pamakina awa, zitha kumveka kuti mamolekyu ambiri okhala ndi ma multi-ligand ali ndi kuthekera kotereku.
Chimodzi mwazomwe zili pamwambazi ndi EDTA, yomwe imatha kupereka maatomu 2 a nayitrogeni ndi maatomu 4 a okosijeni a carboxyl kuti agwirizane ndi chitsulo, ndipo atha kugwiritsa ntchito molekyulu ya 1 kuti amangire mwamphamvu ayoni a calcium omwe amafunikira kulumikizana kwa 6, kupanga chinthu chokhazikika kwambiri chokhala ndi zabwino kwambiri. luso la chelation.Ma chelator ena omwe amagwiritsidwa ntchito kwambiri ndi sodium phytate monga sodium gluconate, sodium glutamate diacetate tetrasodium (GLDA), sodium amino acid monga methylglycine diacetate trisodium (MGDA), ndi polyphosphates ndi polyamines.
Monga tonse tikudziwa, kaya m'madzi apampopi kapena m'madzi achilengedwe, muli calcium, magnesium, iron plasma, ayoni achitsulo awa pakulemeretsa kwanthawi yayitali, adzabweretsa zotsatirazi pa moyo wathu watsiku ndi tsiku:
1. Nsaluyo sinatsukidwe bwino, zomwe zimapangitsa kuti masikelo akhazikike, kuumitsa komanso kudetsa.
2. Palibe woyenera kuyeretsa wothandizila pa zolimba pamwamba, ndi madipoziti lonse
3. Kuyika ma depositi mu tableware ndi glassware
Kuuma kwamadzi kumatanthawuza zomwe zili mu calcium ndi magnesium ions m'madzi, ndipo madzi olimba amachepetsa kuchapa.Muzinthu zotsukira, chelating wothandizira amatha kuchitapo kanthu ndi calcium, magnesium ndi ayoni ena zitsulo m'madzi, kuti afewetse mtundu wamadzi, kuteteza calcium ndi magnesium plasma kuti isagwirizane ndi wothandizila mu detergent, ndikupewa kukhudza kuchapa. , potero kusintha mphamvu ya mankhwala ochapira.
Kuphatikiza apo, ma chelating agents amathanso kupangitsa kuti chotsukiracho chikhale chokhazikika komanso chosatha kuwonongeka pakatenthedwa kapena kusungidwa kwa nthawi yayitali.
Kuphatikizika kwa chelating agent ku detergent kungapangitse mphamvu yake yoyeretsa, makamaka m'madera omwe kutsuka kumakhudzidwa kwambiri ndi kuuma, monga kumpoto, kum'mwera chakumadzulo ndi madera ena omwe ali ndi kuuma kwa madzi, chelating agent amathanso kuteteza madontho a madzi ndi madontho. kuchokera kukhazikika pamwamba pa nsalu, kotero kuti chotsukira chotsuka chotsuka chimalowa mosavuta komanso chosavuta kumamatira pamwamba pa chovalacho, kuwongolera kuchapa nthawi yomweyo.Sinthani kuyera ndi kufewa, kuchita mwachilengedwe sikukhala kotuwa komanso kuuma molimba.
Komanso mu kuyeretsa mwamphamvu pamwamba ndi kuyeretsa tableware, wothandizira chelating mu detergent akhoza kusintha kutha ndi kubalalitsidwa mphamvu ya detergent, kotero kuti banga ndi sikelo zikhale zosavuta kuchotsa, ndipo ntchito mwachilengedwe ndikuti sikeloyo singakhale, pamwamba ndi mandala, ndipo galasi si kupachika madzi filimu.Chelating agents amathanso kuphatikiza ndi okosijeni mumlengalenga kuti apange zinthu zokhazikika zomwe zimalepheretsa makutidwe ndi okosijeni azitsulo.
Kuphatikiza apo, mphamvu ya chelating pa ayoni yachitsulo imagwiritsidwanso ntchito poyeretsa mapaipi pochotsa dzimbiri.
Nthawi yotumiza: Jul-03-2024
