Chelating properties applications

The fundamental prerequisite for the applicability of this technique is the necessity of (usually bidentate or tridentate) chelation properties of both the chiral SO and the SA. This requirement is fulfilled by compounds having two polar functional groups in a favourable arrangement to each other, like a/p-amino acids, amino alcohols, a-hydroxy... 

With this model of human skin explant, after the validation of the experimental bum, the challenge was to compare various methods for washing HF bums. We selected two of them water washing followed by application of a 2.5 % calcium gluconate (CaG) cutaneous gel with topical application versus HEXAFLUORINE solution as a specific washing solution, which, due to its anti-acid and fluoride ion-chelating properties, matches the two dangers of HF corrosion and toxicity. 

VAMA materials function well in detergent,boiler scale removal, and chelating applications.The copolymer shows excellent chelating properties for Cu ions. The copolymer may also be used as a coagulating agent for purification of feedwaters going to steam boilers. In this or other... 

Polyvinylpyrrolidone is thus utilized as either aqueous or organic solutions in a multitude of applications. Many of these applications are also related to the chelating properties of this polymer. Thus, it forms complexes with molecular iodine (I2) and can thus be used as a reservoir of this molecule whose disinfecting properties are well known. It also gives strong interactions with natural and synthetic dyes and thus facilitates their anchoring on textile fibers by complexation with the corresponding polymers. 

Chitin and its deacetylated product, chitosan, have attracted renewed scientific and economic interest because of their abrmdance, especially the availability fi om seafood waste, and unique attributes, e.g. biodegradability, biocompatibility, nontoxicity, wound-healing acceleration, antimicrobial and chelating properties. Chitin and chitosan have been widely used in food, biomedical, cosmetic, and textile applications. By fabricating chitin and chitosan fibers, one could take better advantage of the bioactive properties and broad the applications of these polymers. 

The literature of polyimines is extensive [164-173]. A number of researchers have tried to synthesize high molecular weight polymers but failed due to poor solubility in organic solvents. Polyimines are of great interest because of their high thermal stability [174-176], ability to form metal chelates [174-177], and their semiconducting properties [178-181]. Due to insolubility and infusibility, which impeded characterization of the molecular structure, the application of these polymers is very limited and of little commercial importance. 

G Schmuckler, Chelating resins — Their analytical properties and applications Talanta, 1965, 12, 281... 

Wohrle, D. Polymer Square Planar Metal Chelates for Science and Industry. Synthesis, Properties and Applications. Vol. 50, pp. 45— 134. 

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