Basa rema chelating agents mukuwacha zvigadzirwa
Chelate, iyo chelate inoumbwa nezvinhu zvinoshandisa chelating, inobva pashoko rechiGiriki rekuti Chele, rinoreva nzwara dzemakaka. MaChelate akafanana nenzwara dzemakaka dzinobata maion esimbi, ayo akagadzikana uye ari nyore kubvisa kana kushandisa aya maion esimbi. Muna 1930, chelate yekutanga yakagadzirwa muGermany - EDTA (ethylenediamine tetraacetic acid) chelate yekurapa varwere vane chepfu yesimbi ine simba, uye ipapo chelate yakagadzirwa uye yakashandiswa pakugeza makemikari zuva nezuva, chikafu, maindasitiri nezvimwe zvinoshandiswa.
Parizvino, vagadziri vakuru vema chelating agents pasi rose vanosanganisira BASF, Norion, Dow, Dongxiao Biological, Shijiazhuang Jack nezvimwewo.
Dunhu reAsia-Pacific ndiro musika mukuru wezvinhu zvinogadzira chelating, une mugove unopfuura 50% uye musika unofungidzirwa kuti unopfuura US$1 bhiriyoni, uye mashandisirwo akajairika muindasitiri yekuchenesa, yekuchenesa mvura, yekuchengeta munhu, yemapepa, yezvekudya nezvinwiwa.
(Maumbirwo emamorekuru emushonga wechelating EDTA)
Mishonga yeChelating inodzora maion esimbi nekuchekerera ma multi-ligands avo ne metal ion complexes kuti vagadzire ma chelate.
Kubva pamaitiro aya, zvinogona kunzwisiswa kuti mamorekuru mazhinji ane multi-ligands ane kugona kwakadaro kwechelation.
Imwe yeEDTA inonyanya kushandiswa ndeye EDTA iri pamusoro apa, iyo inogona kupa maatomu maviri enitrogen uye maatomu mana ecarboxyl oxygen kuti ashande pamwe chete nesimbi, uye inogona kushandisa molekyuru imwe chete kuputira zvakasimba calcium ion inoda kubatana 6, zvichigadzira chigadzirwa chakasimba chine kugona kwakanaka kwechelation. Mamwe machelator anoshandiswa kazhinji anosanganisira sodium phytate senge sodium gluconate, sodium glutamate diacetate tetrasodium (GLDA), sodium amino acids senge methylglycine diacetate trisodium (MGDA), uye polyphosphates uye polyamines.
Sezvatinoziva tese, kungave mumvura yepombi kana mumvura yechisikigo, kune calcium, magnesium, iron plasma, aya ma ions esimbi ari mukuwedzera kwenguva refu, achaita zvinotevera pahupenyu hwedu hwezuva nezuva:
1. Jira harina kucheneswa zvakanaka, zvichikonzera kuomarara, kuomarara uye kusviba.
2. Hapana mushonga wekuchenesa wakakodzera panzvimbo yakaoma, uye zvidimbu zvechikero
3. Kuisa zviyero mumidziyo yetafura negirazi
Kuomarara kwemvura kunoreva huwandu hwecalcium nemagnesium ions mumvura, uye mvura yakaoma inoderedza simba rekuwachisa. Muzvigadzirwa zvesipo, chelating agent inogona kuita necalcium, magnesium nedzimwe ions dzesimbi mumvura, kuitira kuti mvura ipfave, kudzivirira calcium nemagnesium plasma kuti zvisaite nechinhu chinoshanda chiri musipo, uye kudzivirira kukanganisa simba rekuwachisa, nokudaro zvichivandudza kushanda kwechinhu chekuwachisa.
Pamusoro pezvo, zvinhu zvinochera zvinogonawo kuita kuti sipo igare yakasimba uye isaora zvakanyanya kana ichipiswa kana kuchengetwa kwenguva yakareba.
Kuwedzerwa kwechelating agent mu detergent yekuwachira kunogona kuwedzera simba rayo rekuchenesa, kunyanya munzvimbo dzine simba rekuwachira rinokanganiswa zvakanyanya nekuomarara, senge kuchamhembe, kumaodzanyemba kwakadziva kumadokero nedzimwe nzvimbo dzine kuomarara kwemvura, chelating agent inogonawo kudzivirira mavanga emvura nemavanga kuti asagare pamusoro pejira, kuitira kuti detergent yekuwachira ive nyore kunyura uye inamatire pamusoro pembatya, zvichivandudza simba rekuwachira panguva imwe chete. Kuvandudza kuchena uye kupfava, mashandiro ekunzwisisa haasi machena uye akaoma zvakanyanya.
Uyewo mukuchenesa nzvimbo dzakaoma uye kuchenesa tafura, chinhu chinochera chiri mu sipo chinogona kuvandudza kugona kwekunyungudika nekupararira kwe sipo, kuitira kuti tsvina neganda zvive nyore kubvisa, uye kushanda kwakajeka ndekwekuti chikero hachigone kuramba chiripo, pamusoro pacho pave pachena, uye girazi harituriki firimu remvura. Zvinhu zvinochera zvinogonawo kusanganiswa neokisijeni mumhepo kuti zvigadzire zvinhu zvakagadzikana zvinodzivisa oxidation yenzvimbo dzesimbi.
Pamusoro pezvo, simba rechelating rema chelating agents pama iron ions rinoshandiswawo mukuchenesa mapaipi kubvisa ngura.