ʻAkika Ethylenediaminetetraacetic (EDTA)
ʻO ka waikawa Ethylenediaminetetraacetic (EDTA) kahi hui organik me ke ʻano kemika C10H16N2O8He pauka keʻokeʻo ia ma ka mahana o ka lumi a me ke kaomi. He mea ia e hiki ke hana me Mg2+He mea hoʻohuihui chelating e hoʻohui i nā ion metala divalent e like me Ca2+, Mn2+, a me Fe2+.
He mea hoʻohuihui koʻikoʻi ʻo EDTA. Loaʻa iā EDTA kahi ākea o nā noi a hiki ke hoʻohana ʻia ma ke ʻano he hopena hoʻokeʻokeʻo a hoʻopaʻa no ka hana ʻana i nā mea ʻike kala, nā mea kōkua hoʻoluʻu, nā mea hoʻohui hoʻonaninani, nā mea hoʻopaʻa, a me nā mea hoʻomaka polymerization rubber synthetic, ʻo EDTA kahi mea koho o nā mea hoʻohuihui. Hiki iā ia ke hana i nā hui paʻa wai-soluble me nā metala alkali, nā mea honua laha ʻole, a me nā metala hoʻololi. Ma waho aʻe o nā paʻakai sodium, aia pū kekahi mau paʻakai ammonium a me nā paʻakai like ʻole e like me ka hao, magnesium, calcium, keleawe, manganese, zinc, cobalt, alumini, a me nā mea ʻē aʻe, kēlā me kēia me nā hoʻohana like ʻole.
Eia kekahi, hiki ke hoʻohana ʻia ʻo EDTA e hoʻokuʻu koke i nā metala radioactive ʻino mai ke kino o ke kanaka a pāʻani i kahi hana detoxifying. He mea mālama wai nō hoʻi ia.
He mea hōʻailona koʻikoʻi nō hoʻi ʻo EDTA, akā hoʻohana ʻia ia e titrate i nā metala e like me ka nickel a me ke keleawe. Ke hoʻohana ʻia, pono e hoʻohana pū ʻia me ka ammonia e hana ma ke ʻano he hōʻailona.
Nui nā ʻano EDTA, a hana kā mākou hui iā EDTA 2Na EDTA 4Na, EDTA CaNa2, EDTA CuNa2, EDTA FeNa, EDTA MgNa2, EDTA MnNa2, EDTA ZnNa2, NTA, NTA-3Na, a pēlā aku.
EDTA 2Na: ʻO ka inoa piha ʻo disodium ethylenediaminetetraacetate, me ke ʻano kemika C10H14N2O8Na2• 2H2O. Hoʻohana ʻia ia ma ke ʻano he mea holoi, mea kōkua hoʻoluʻu, mea lapaʻau fiber, mea hoʻohui hoʻonani, mea hoʻohui meaʻai, mea hoʻouluulu liʻiliʻi mahiʻai, a me ka mahiʻai iʻa kai.
EDTA 4Na: Inoa piha ethylenediaminetetraacetic acid tetrasodium, ke ʻano kemika C10H12N2O8Na4.4H2ʻO, hoʻohana ʻia ma ke ʻano he mea palupalu wai, mea hoʻouluulu rubber synthetic, mea hoʻopau polymerization acrylic, mea kōkua paʻi a me ka dyeing, kōkua detergent, a pēlā aku.
EDTA CaNa2Inoa piha calcium sodium ethylenediaminetetraacetate, formula kemika C10H12N2O8ʻO CaNa2• xH2ʻO O, i hoʻohana ʻia ma ke ʻano he mea hoʻokaʻawale, he mea chelating wai-hoʻoheheʻe ʻia e hiki ke chelate i nā ion hao multivalent. Hoʻololi ka calcium a me ka hao e hana i nā chelates paʻa.
EDTA CuNa2Inoa piha keleawe sodium ethylenediaminetetraacetate, formula kemika C10H12N2O8CuNa2• 2H2ʻO, ʻo ke keleawe sodium ethylenediaminetetraacetate ka mea hoʻoheheʻe wai-hoʻoheheʻe ʻia, a ʻo ke keleawe ka mea hoʻoheheʻe.
EDTA FeNa: Inoa piha keleawe sodium ethylenediaminetetraacetate, formula kemika C10H12N2O8CuNa2• 2H2ʻO O, hoʻohana ʻia ma ke ʻano he mea hoʻokaʻawale kala i ke kiʻi ʻana. Hoʻohana ʻia ma ke ʻano he mea hoʻohui i ka ʻoihana meaʻai, ma ke ʻano he mea trace i ka mahiʻai, a ma ke ʻano he mea hoʻoulu i ka ʻoihana.
EDTA MgNa2ʻO ka inoa piha ʻo magnesium sodium ethylenediaminetetraacetate, me ke ʻano kemika C10H12N2O8MgNa2 • 2H2ʻO O. ʻO ka magnesium sodium ethylenediaminetetraacetate kahi mea hoʻoheheʻe wai.
EDTA MnNa2, i ʻike ʻia hoʻi ʻo ka waikawa ethylenediaminetetraacetic manganese sodium, loaʻa iā ia ke ʻano kemika C10H12MnN2Na2O8Hoʻohana ʻia ia ma ke ʻano he mea no ka hoʻoulu ʻana i nā lau i ka mahiʻai a me ka māla ʻana, a me kahi mea trace no ka hydroponics.
EDTA ZnNa2Inoa piha: Zinc sodium ethylenediaminetetraacetate, ʻano kemika: C10H12N2O8ZnNa2• 2H2ʻO, ʻo ka zinc sodium ethylenediaminetetraacetate ka mea hoʻoheheʻe wai-hoʻoheheʻe ʻia, a ʻo ka zinc ka mea hoʻoheheʻe.
NTA: ʻO ka inoa piha he triacetic acid, ʻo ke ʻano kemika ʻo C6H9NO6, he mea hoʻopaʻa maikaʻi loa ia i ka ʻoihana kala, hoʻokani i kahi hana paʻa i ka hana ʻana o ka styrene, a hana ma ke ʻano he mea hoʻoulu a me ka mea hoʻopili i ka hana ʻana o ka huʻa polyurethane.
NTA-3Na: Inoa piha trisodiumaminotriacetate, formula kemika C6H9NNa3O6, i hoʻohana ʻia ma ke ʻano he mea chelating agent.
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