
乙二胺四乙酸 - 维基百科,自由的百科全书
乙二胺四乙酸 (英語: Ethylenediaminetetraacetic acid),也稱為 乙二胺四醋酸 、 乙底酸[3] (大陆: 依地酸),结构简式为 ,常缩写为 EDTA,是一种 有机化合物。 它是一個六齿 配體,可以螯著多種 金屬 離子。 它的4個 羧基 氧和2個 胺基 氮都可作為配位原子,與 錳 (II)、 銅 (II)、 鐵 (III)及 鈷 (II)等金屬離子組成 螯合物 [4]。 化學家 曾經用多種不同的字來形容EDTA,例如將 配體 本身叫做EDTA 4−,而它的 共軛酸 叫做H 4 EDTA。 EDTA 和其他化合 …
Ethylenediaminetetraacetic acid - Wikipedia
Ethylenediaminetetraacetic acid (EDTA), also called EDTA acid, is an aminopolycarboxylic acid with the formula [CH 2 N (CH 2 CO 2 H) 2] 2. This white, slightly water-soluble solid is widely used to bind to iron (Fe 2+ /Fe 3+) and calcium ions (Ca 2+), forming water-soluble complexes even at …
乙二胺四乙酸 - 百度百科
乙二胺四乙酸(EDTA)是一种 有机化合物 ,其化学式为C 10 H 16 N 2 O 8 ,常温常压下为白色粉末。它是一种能与Mg 2+ 、Ca 2+ 、Mn 2+ 、Fe 2+ 等二价金属离子结合的 螯合剂 。
EDTA: Uses and Risks - WebMD
2024年6月25日 · EDTA is a chemical that is added to certain foods and beverages to help them keep their color and flavor. For instance, it is sometimes added to: The FDA says EDTA is considered safe for use in...
Ethylenediaminetetraacetic acid in endodontics - PMC
Ethylenediaminetetraacetic acid (EDTA) is a chelating agent can bind to metals via four carboxylate and two amine groups. It is a polyamino carboxylic acid and a colorless, water-soluble solid, which is widely used to dissolve lime scale. It is produced as several salts, notably disodium EDTA and calcium disodium EDTA.
乙二胺四乙酸 CAS#: 60-00-4 - ChemicalBook
EDTA及其盐类能与多种金属离子发生络合反应,形成稳定的环状结构,有效地减少或抑制金属离子引起的副反应或有害作用,是应用最为广泛的金属螯合剂,一般用于螯合14 >pH>5的钙离子、14>pH>2的铜离子、6>pH>1铁离子、12>pH>6镁离子,以及14>pH>3的锰离子。 由于其优良的螯合性能,国内EDTA及其盐主要用于照相化学品、水处理剂、化学品(胱氨酸)精制、洗涤剂、纺织助剂、皮革化学品、造纸化学品、医药、合成橡胶、微肥生产等领域。 EDTA可生 …
Ethylenediaminetetraacetic Acid - an overview - ScienceDirect
Ethylenediaminetetraacetic Acid (EDTA) is a compound that forms stable complexes with various metal ions in an alkaline environment, commonly used as a chelating agent in food to preserve color and flavor.
EDTA_化工百科 - ChemBK
中文名:乙二胺四乙酸,英文名:Ethylenediaminetetraacetic acid,CAS:60-00-4,用作染色助剂、纤维处理剂、化妆品添加剂、血液抗凝剂、水处理剂、橡胶聚合引发剂、PVC热稳定剂等.化学式:C10H16N2O8,分子量:292,密度:1.628g/cm 3 ,熔点:237-245℃ (dec.),沸点:540.597°C at 760 mmHg,闪点:280.743°C ...
Edetic Acid | C10H16N2O8 | CID 6049 - PubChem
Ethylenediaminetetraacetic acid is a tetracarboxylic acid, an ethylenediamine derivative and a polyamino carboxylic acid. It has a role as an antidote, a geroprotector, a copper chelator, an anticoagulant and a calcium chelator. It is a conjugate acid of an EDTA (2-).
Acute prooxidant effects of vitamin C in EDTA chelation ... - PubMed
2005年6月15日 · We administered a standard EDTA cocktail solution with or without 5 g of sodium ascorbate. One hour following the standard chelation therapy, there were highly significant prooxidant effects on lipids, proteins, and DNA associated with decreased activities of RBC glutathione peroxidase and superoxide dismutase while in the absence of sodium ...