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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 neutral pH. It is thus used to dissolve Fe- and Ca ...
Iron chelate is commonly used for agricultural purposes to treat chlorosis, a condition in which leaves produce insufficient chlorophyll. Iron and ligand are absorbed separately by the plant roots whereby the highly stable ferric chelate is first reduced to the less stable ferrous chelate. [6]
Chelation (/ k iː ˈ l eɪ ʃ ən / ... typically convert these metal ions into insoluble solids that are of no nutritional value to the plants. EDTA is the typical ...
EDTA chelation was found to reduce lead levels by 61 percent in the EDTA group. But cardiovascular events occurred fairly equally among the EDTA (35.6 percent) and placebo (35.7 percent) groups. ...
Sprint 138 iron chelate is produced as Na-Fe-EDDHA (C 18 H 16 FeN 2 NaO 6), while Hoagland's original solution formulations contain ferric tartrate (C 12 H 12 Fe 2 O 18), but no sodium ions. [1] [2] [3] Synthesizing a sodium-free ferric EDTA complex (C 10 H 12 FeN 2 O 8 −) in a laboratory is sometimes preferred to buying ready-made products.
A commonly used synthetic chelator is ethylenediaminetetraacetic acid (EDTA), which may exist as a tetrasodium or disodium salt. Due to environmental and aquatic toxicity concerns regarding widespread use of EDTA in household and personal care products, alternatives such as sodium phytate/ phytic acid , tetrasodium glutamate diacetate and ...
Tetrasodium EDTA is the salt resulting from the neutralization of ethylenediaminetetraacetic acid with four equivalents of sodium hydroxide (or an equivalent sodium base). It is a white solid that is highly soluble in water. Commercial samples are often hydrated, e.g. Na 4 EDTA. 4H 2 O. The properties of solutions produced from the anhydrous ...
Although the concept and practical use of metal chelation is common, chelation of inert metals, such as platinum, has been rarely reported and the yield was extremely low. [2] To produce chelated platinum solution, tetraammonium EDTA, NTA, DTPA or HEDTA type chelating agent was mixed with platinum or platinum chemical compounds. The resulting ...