Zineb

Zineb
IUPAC name

zinc ethane-1,2-diylbis(dithiocarbamate)
Other names

[[1,2 ethanediylbis[dithiocarbamodithioato](2−)]] zinc,
Dithane Z-78, Aphytora, Amitan
Identifiers
CAS number 12122-67-7 Y
KEGG C15232 Y
Jmol-3D images Image 1
Properties
Molecular formula C4H6N2S4Zn
Molar mass 275.77 g mol−1
Appearance light colored powder
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Zineb is a foliate fungicide and is a polymeric complex of zinc with the ethylene bis(dithiocarbamate) anionic ligand.[1] Its uses include control of downy mildews, rusts and redfire disease.[1] It is produced by reacting ethylene bis(dithiocarbamate) sodium salt, nabam, with zinc sulfate. This can be carried out by mixing nabam and zinc sulfate in the spray tank.[2] In the US it was once registered as a "General Use Pesticide", however all registrations were voluntarily cancelled following an EPA special review.[2] It continues to be used in many other countries.

Ethylene bis(dithiocarbamate) with Manganese instead of Zinc, called Maneb, was included in a biocide ban proposed by the Swedish Chemicals Agency [3] and approved by the European Parliament on January 13, 2009.[4]

References

  1. ^ a b Ullmann's Agrochemicals, Wiley-VCH Staff , Wiley-Vch (COR), 2007 ISBN 3527316043
  2. ^ a b Michael A. Kamrin, (1997)Pesticide Profiles: Toxicity, Environmental Impact, and Fate, CRC Press, ISBN 1566701902
  3. ^ "Interpretation of criteria for approval of active substances in the proposed EU plant protection regulation". Swedish Chemicals Agency (KemI). 2008-09-23. http://www.kemi.se/templates/News____5415.aspx. Retrieved 2009-01-14. 
  4. ^ "MEPs approve pesticides legislation". 2009-01-13. http://www.europarl.europa.eu/news/expert/infopress_page/066-45937-012-01-03-911-20090112IPR45936-12-01-2009-2009-false/default_en.htm. Retrieved 2009-01-14.