Zineb

 ( Fungicides ) 

Zineb is the chemical compound with the formula {ZnS₂CN(H)CH₂CH₂N(H)CS₂}_n. Structurally, it is classified as a coordination polymer and a dithiocarbamate complex. This pale yellow solid is used as fungicide.

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Production and applications It is produced by treating ethylene bis(dithiocarbamate) sodium salt, "nabam", with zinc sulfate. This procedure can be carried out by mixing nabam and zinc sulfate in a spray tank.Michael A. Kamrin, (1997) Pesticide Profiles: Toxicity, Environmental Impact, and Fate, CRC Press, Its uses include control of downy , rusts, and redfire disease. In the US it was once registered as a "General Use Pesticide", however all registrations were voluntarily cancelled following an EPA special review. It continues to be used in many countries, including the United States.

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Structure

Zineb is a polymeric complex of zinc with a dithiocarbamate. The polymer is composed of Zn(dithiocarbamate)₂ subunits linked by an ethylene (-CH₂CH₂-) backbone.

(1974). 9781461585060, Springer. ISBN 9781461585060

A reference compound is Zn(S₂CNEt₂)₂₂, which features a pair of tetrahedral Zn centers bridging ligand by one sulfur center.

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See also

• Metam sodium - A related dithiocarbamate salt which is also used as a fungicide.
• Maneb - ethylene bis(dithiocarbamate) with manganese instead of zinc.
• Mancozeb - A common fungicide containing Zineb and Maneb.

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External links

Categories: Fungicides, Endocrine Disruptors, Zinc Compounds, Dithiocarbamates, Polymers

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