Ethylenediaminetetraacetic acid (EDTA)
Ethylenediaminetetraacetic acid (EDTA) yog ib qho organic compound nrog cov tshuaj mis C10H16N2O8Nws yog ib qho hmoov dawb ntawm chav tsev kub thiab siab. Nws yog ib yam khoom uas tuaj yeem cuam tshuam nrog Mg2+Ib tug neeg sawv cev chelating uas sib xyaw cov divalent hlau ions xws li Ca2+, Mn2+, thiab Fe2+.
EDTA yog ib qho tseem ceeb chelating agent. EDTA muaj ntau yam kev siv thiab siv tau ua cov tshuaj dawb thiab kho rau kev ua cov khoom siv rhiab heev rau xim, cov khoom siv zas xim, cov khoom ntxiv rau cov khoom siv pleev kom zoo nkauj, cov khoom ruaj khov, thiab cov roj hmab polymerization initiators. EDTA yog ib qho khoom sawv cev ntawm cov neeg sawv cev chelating. Nws tuaj yeem tsim cov dej ruaj khov-soluble complexes nrog alkali hlau, cov khoom tsis tshua muaj ntiaj teb, thiab cov hlau hloov pauv. Ntxiv rau cov ntsev sodium, kuj tseem muaj cov ntsev ammonium thiab ntau yam ntsev xws li hlau, magnesium, calcium, tooj liab, manganese, zinc, cobalt, txhuas, thiab lwm yam, txhua tus muaj kev siv sib txawv.
Tsis tas li ntawd xwb, EDTA kuj siv tau los tso cov hlau radioactive tawm ntawm lub cev tib neeg sai sai thiab ua lub luag haujlwm tshem tawm cov tshuaj lom. Nws kuj yog ib yam khoom siv kho dej.
EDTA kuj yog ib qho cim qhia tseem ceeb, tab sis nws yog siv los titrate cov hlau xws li nickel thiab tooj liab. Thaum siv, nws yuav tsum tau siv ua ke nrog ammonia los ua ib qho cim qhia.
Muaj ntau hom EDTA, thiab peb lub tuam txhab tsim EDTA 2Na EDTA 4Na, EDTA CaNa2EDTA CuNa2, EDTA FeNa, EDTA MgNa2, EDTA MnNa2EDTA, ZnNa2, NTA, NTA-3Na, thiab lwm yam.
EDTA 2Na: Lub npe tag nrho yog disodium ethylenediaminetetraacetate, nrog rau cov tshuaj mis C10H14N2O8Na2• 2H2O. Nws yog siv los ua cov tshuaj ntxuav tes, cov khoom pab zas xim, cov tshuaj kho fiber, cov khoom ntxiv rau cov khoom pleev kom zoo nkauj, cov khoom noj khoom haus ntxiv, cov chiv ua liaj ua teb me me, thiab cov tsiaj txhu hauv dej hiav txwv.
EDTA 4Na: Lub npe tag nrho ethylenediaminetetraacetic acid tetrasodium, tshuaj mis C10H12N2O8Na4.4H2O, siv ua cov dej mos, cov roj hmab ua catalyst, acrylic polymerization termination agent, luam ntawv thiab dyeing assistant, detergent assistant, thiab lwm yam.
EDTA CaNa2Lub npe tag nrho: calcium sodium ethylenediaminetetraacetate, tshuaj mis C10H12N2O8CaNa2• xH2O, siv ua tus neeg sawv cev sib cais, yog tus neeg sawv cev chelating uas yaj tau hauv dej uas tuaj yeem chelate cov hlau ions ntau yam. Calcium thiab hlau sib pauv los ua cov chelates ruaj khov dua.
EDTA CuNa2Lub npe tag nrho: tooj liab sodium ethylenediaminetetraacetate, tshuaj mis C10H12N2O8CuNa2• 2H2O, tooj liab sodium ethylenediaminetetraacetate yog tus neeg sawv cev chelating uas yaj tau hauv dej, thiab tooj liab yog tus neeg sawv cev chelating.
EDTA FeNa: Lub npe tag nrho tooj liab sodium ethylenediaminetetraacetate, tshuaj mis C10H12N2O8CuNa2• 2H2O, siv ua tus neeg sawv cev tshem xim hauv kev thaij duab. Siv ua ib qho khoom ntxiv hauv kev lag luam zaub mov, ua ib qho khoom me me hauv kev ua liaj ua teb, thiab ua tus neeg ua kom muaj zog hauv kev lag luam.
EDTA MgNa2Lub npe tag nrho yog magnesium sodium ethylenediaminetetraacetate, nrog rau cov tshuaj mis C10H12N2O8MgNa2 • 2H2O. Magnesium sodium ethylenediaminetetraacetate yog ib qho tshuaj chelating uas yaj tau hauv dej.
EDTA MnNa2, tseem hu ua ethylenediaminetetraacetic acid manganese sodium, muaj cov tshuaj mis C10H12MnN2Na2O8Nws yog siv los ua ib qho khoom siv rau kev ua liaj ua teb thiab kev cog qoob loo, nrog rau ib qho khoom siv rau hydroponics.
EDTA ZnNa2Lub npe tag nrho: Zinc sodium ethylenediaminetetraacetate, cov mis tshuaj: C10H12N2O8ZnNa2• 2H2O, zinc sodium ethylenediaminetetraacetate yog tus neeg sawv cev chelating uas yaj tau hauv dej, thiab zinc yog tus neeg sawv cev chelating.
NTA: Lub npe tag nrho yog triacetic acid, cov mis tshuaj yog C6H9NO6, uas yog ib qho tshuaj kho kom zoo hauv kev lag luam zas xim, ua lub luag haujlwm ruaj khov hauv kev tsim cov styrene, thiab ua haujlwm ua tus catalyst thiab tus neeg sawv cev complexing hauv kev tsim cov polyurethane ua npuas ncauj.
NTA-3Na: Lub npe tag nrho trisodiumaminotriacetate, tshuaj mis C6H9NNa3O6, siv ua tus neeg sawv cev chelating.
Peb yog cov neeg muag khoom tseem ceeb hauv Suav teb, rau tus nqi lossis ntau cov ntaub ntawv txais tos hu rau peb ntawm:
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