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Updated: Sep 19, 2025

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
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新型EDTA改性钢基催化剂,通过异构的芬顿工艺去除NO

Lingtao Liu1, Yuan Xu1, Zihua Hu1

  • 1School of Chemistry and Materials Science, East China University of Technology, Nanchang 330013, PR China.

Journal of hazardous materials
|June 4, 2025
PubMed
概括

一种新的催化剂,EDTA-SA-SS,有效地使用基于芬顿的系统从烟气中去除氧化 (NO). 这种环保的方法通过创建多功能活跃站点来提高脱化效率和稳定性.

关键词:
艾迪塔,艾迪塔,艾迪塔,艾迪塔,艾迪塔,艾迪塔,艾迪塔芬顿反应是芬顿反应的一个反应.氧化氧化是什么?钢铁废渣是一种钢铁废渣.

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EDTA: Auxiliary Complexing Reagents01:26

EDTA: Auxiliary Complexing Reagents

EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
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Masking and Demasking Agents

EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
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Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
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