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Aqueous mercury precipitation with the synthetic dithiolate, BDTH_2

机译：用合成的二硫醇盐BDTH_2沉淀水银

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摘要

BDTH_2,1,3-benzenediamidoethanethiol (common name) and closely related derivatives were specifically designed to become insoluble after the formation of linear, covalent bonds to aqueous mercury(II). BDTH_2 (IUPAC nomenclature, N,N'-bis(2-mercaptoethyl)isophthalamide) emerged as the preeminent reagent for the complete precipitation of mercury from water after several years of studies with a wide range of compounds having one, two, three, and four thiol groups. BDTH_2 does not become inactive through oxidation to disulfide and can be applied to mercury-containing water as acidic, basic, and ethanolic solutions. The BDT-Hg precipitate is extremely stable and leaches low-ppm levels of mercury only under extremely acidic and basic conditions. BDTH_2 is also effective in the aqueous precipitation of other soft, divalent metals, such as copper, cadmium, lead, and the main group elements, arsenic and selenium. The insolubility of the BDT-M compounds can be attributed to the presence of strong, non-polar, covalent M-S bonding within a water-insoluble organic framework. BDTH_2 has no known biological toxicity and is being sold as a nutritional supplement under the trade name OSR-1. This review describes the chemistry, precipitation, and leaching studies of BDTH_2 with mercury.
机译：BDTH_2,1,3-苯二氨基乙硫醇（通用名称）和密切相关的衍生物经过专门设计，可在与水银（II）形成线性共价键后不溶。经过数年的研究，BDTH_2（IUPAC命名法，N，N'-双（2-巯基乙基）间苯二甲酰胺）作为汞从水中完全沉淀的杰出试剂而出现，该化合物具有多种化合物，其中一，二，三和四个硫醇基团。 BDTH_2不会通过氧化为二硫化物而失活，并且可以酸性，碱性和乙醇溶液形式应用于含汞的水中。 BDT-Hg沉淀物非常稳定，仅在极端酸性和碱性条件下才能浸出低ppm的汞。 BDTH_2在其他柔软的二价金属（如铜，镉，铅和主要族元素砷和硒）的水相沉淀中也有效。 BDT-M化合物的不溶性可以归因于在水不溶性有机骨架中存在牢固的非极性共价M-S键。 BDTH_2没有已知的生物毒性，正在作为营养补品以商品名OSR-1出售。这篇综述描述了含汞的BDTH_2的化学，沉淀和浸出研究。

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  • 来源
    《Fuel》 |2010年第6期|p.1326-1330|共5页
  • 作者

    Lisa Y. Blue; Partha Jana; David A. Atwood;

  • 作者单位

    Department of Chemistry, University of Kentucky, Lexington, KY 40506, United States;

    Department of Chemistry, University of Kentucky, Lexington, KY 40506, United States;

    Department of Chemistry, University of Kentucky, Lexington, KY 40506, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    mercury; remediation; mitigation; BDTH_2; N,N'-bis(2-mercaptoethyl)isophthalamide);

    机译：汞;补救措施;减轻;BDTH_2;N;N'-双（2-巯基乙基）间苯二甲酰胺）;

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