Fixing agent of heavy metal

Details Fixing agent of heavy metal Fixing agent of heavy metal

A - Human Necessities

01

N

71/16, 362/53, 3

A01N 25/00 (2006.01) A61L 11/00 (2006.01) B01J 20/22 (2006.01) C02F 1/00 (2006.01) C02F 1/28 (2006.01) C02F 1/52 (2006.01) C02F 11/00 (2006.01)

Patent

CA 1052021

Abstract of the Disclosure This invention relates to fixing agents for heavy metals and heavy metal compounds and in particular to fixing agents which react with heavy metal ions or heavy metal compound precipitates of heavy metal ions and heavy metal compounds, and render heavy metal compounds insoluble. According to the invention, aliphatic dithiocarbamate compound means a compound having an aliphatic chain which may contain a nitrogen atom in place of a carbon atom and at least two dithiocarbamate groups (>N-?-S-) and which is contained in the compound in the form of acid (R-NHCSSH or Image ), or salt or esters of alkali metals, alkaline earth metals and ammonium hydroxide of the dithiocarbamic acid group.

191195

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