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A chelating agent is the main component of some rust removal formulations. Citric acid is used to soften water in soaps and laundry detergents. A common synthetic chelator is EDTA. Phosphonates are also well-known chelating agents. Chelators are used in water treatment programs and specifically in steam engineering.
Like EDTA, its sodium salt is used for water softening to remove Ca 2+. For this purpose, NTA is a replacement for triphosphate, which once was widely used in detergents, and cleansers, but can cause eutrophication of lakes. In one application, sodium NTA removes Cr, Cu, and As from wood that had been treated with chromated copper arsenate. [9]
Tetrasodium iminodisuccinate is a chelating agent, forming complexes of moderate stability (10 −16), which includes (as a pentadentate ligand) alkaline earth and polyvalent heavy metal ions with one molecule of water in an octahedral structure. [7] In 0.25% aqueous solution, a pH of 11.5 results for tetrasodium iminodisuccinate. The salt is ...
Dissolution and chelation of metal elements [ edit ] Organic acids have the ability to dissolve soil minerals , and can destroy silicate minerals and iron and aluminum oxides , [ 8 ] so that metal ions are precipitated and complexed with organic complexing agents through ion exchange, surface absorption, and chelation-reaction mechanisms. [ 9 ]
It will be important to refrain from irrigation (ground water or surface water) with poor quality water. In viticulture, adding naturally occurring chelating agents such as tartaric acid to irrigation water has been suggested, to solubilize calcium and magnesium carbonates in sodic soils. [12]
BDTH 2 (also called BDET and BDETH 2; trade names B9, MetX, and OSR#1) is an organosulfur compound that is used as a chelation agent. [2] It is a colourless solid. The molecule consists of two thiol groups and linked via a pair of amide groups.
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