EDTA thiab nws cov ntsev tuaj yeem ua nrog ntau hom hlau ions, tsim ib lub nplhaib npliag, ua kom tsis zoo los sis tsis cuam tshuam cov hlau ions los ntawm kev phiv los sis cov teeb meem tshwm sim, yog qhov feem ntau siv cov hlau chelating, feem ntau yog rau tus chelate ntawm tus phaj 5 ntawm cov hmoov kiv povtseg, ph. 2 ntawm cov tooj liab ions, 6, Phooj 1 ntawm cov hlau ions, ph + 6 ntawm magnesium ions, as Well as ph. 3 ntawm manganese ions. Vim tias nws cov khoom zoo nkauj, EDTA thiab nws cov ntsev yog siv rau hauv kev kho dej, xab npum, textile, papermaking, tshuaj, rubber processing, photographic thiab lwm yam.
EDTA tus qauv muaj 6 atoms (ob lub npe ntawm amino nitrogen thiab plaub lub cev carbonboxyl oxygen) uas tsim kom muaj kev sib koom ua ke nrog hlau ions, uas tuaj yeem tsim ib qho dej ruaj khov thiab muaj dej ntau nrog ion hlau ntau.
EDTA nyob rau hauv kev daws nyob rau hauv cov saum toj no tsib cov ntaub ntawv, nyob rau hauv ib tug npaum li cas ntawm acidity nyob rau hauv ntau yam ntaub ntawv raws li ib tug muaj pes tsawg tus ntawm proportional faib. Raws li nyob rau hauv cov ntaub ntawv ntawm Shan ph <2 tsuas="" yog="" nyob="" rau="" hauv="" daim="" ntawv="" ntawm="" h4y,="" thaum="" ph=""> 12 mas yog y4-daim ntawv.
Ntxiv mus, peb EDTA yog tsim los ntawm sodium cyanide txujci. Sib piv nrog lwm txoj kev muaj qhov zoo li nram qab no:
(1) Qhov tshuaj tiv thaiv tseem ceeb tshaj plaws hauv alkaline, cov txheej txheem ntawm cov tshuaj tiv thaiv yuav tsis ua cov kua cyanogen hydrogen, kev lag luam ntau dhau lawm;
(2) piv nrog cov tshuaj chloroacetic acid, EDTA tsis muaj chloride ions, yog li nws tsim nyog rau feem ntau tu.
(3) Kev tsim cov txheej txheem ntawm cov txheej txheem tsis tawm cov khoom pov tseg thiab yog ib qho yooj yim uas kov tau;
(4) Sodium cyanide zauv ntawm EDTA thiab nws cov ntsev sodium, khoom purity ntawm 99.5%.
Daim ntawv thov ntawm EDTA chelating tus neeg saib xyuas hauv cov khoom
Khoom cua
Txawm tias cov khoom siv hluavtaws tsis raug cuam tshuam los ntawm cov dej tob, tus nqi tsawg ntawm EDTA tuaj yeem npog hlau ions, uas tuaj yeem ua rau muaj kev ruaj ntseg ntawm surfactant thiab ua npuas ncauj, txhim khu kev ceev faus, foaming quab yuam, soaking quab yuam thiab emulsifying force ntawm detergent, uas yog pab kom txhim kho qhov ua tau zoo. EDTA tseem siv tau soaps thiab kua soaps.
Tshuaj Txhua Nrho Tshuaj
Nyob hauv kev lag luam txhua hnub, EDTA yog siv los ua tshuaj tiv thaiv antiseptic hauv cov tshuaj pleev kom txo tau cov oxidation oxidation ntawm cov hlau ions rau roj kom tsis txhob muaj kev tawg. EDTA sodium ntsev, siv los chelate ca / mg ions hauv dej tawv, qhov muaj cov ions no yuav yog qhov tiag tiag defoaming, kom cov khaub ncaws, cov plaub hau ntxhua ntxuav tsis huv.
Cov tshuaj ntxuav iav
Ntu ci ci ntawm iav tuaj yeem tsim kho los ntawm EDTA pretreatment.
