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Updated: Jul 15, 2025

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper
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Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Published on: February 27, 2021

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优化,动力学和异温研究 甲基化从模拟溶液中去除,使用酸盐衍生物

Manar El-Sayed Abdel-Raouf1, Reem Kamal Farag1, Ahmed A Farag1

  • 1Egyptian Petroleum Research Institute, 1 Ahmed El-Zomor, Nasr City 11727, Cairo, Egypt.

ACS omega
|September 25, 2023
PubMed
概括

基托桑衍生物被修改并测试了从水中去除甲蓝 (MB) 染料. 基托桑与甲/甲基二 (?? 烯胺) 交联显示出最高的吸附能力,证明了有效的染料去除和可重复使用.

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SN2 Reaction: Kinetics02:14

SN2 Reaction: Kinetics

Kinetic Studies and Significance
In a chemical reaction, a relationship exists between the concentration of reactants and the rate at which the reaction proceeds. The study to measure this relationship is known as the kinetics of a chemical reaction. Kinetic studies are used to deduce the rate law of a chemical reaction, which provides information about the species involved during the transition state of the rate-determining step. Thus, kinetic studies help to derive the mechanism of a...
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Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Ion Exchange01:17

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Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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