Ethylene-bis-dithiocarbamates

Maneb 486 (Figure 25) is an ethylene bis-dithiocarbamate (EBDC) fungicide used in agriculture for the control of early and late blights in potatoes and tomatoes, as well as many other diseases in fruits, vegetables, field crops, and... 

Hylin, J.W. Oxidative decomposition of ethylene-bis-dithiocarbamates. Bull. Environ. Contam. Toxicol, 10(4) 227-233,1973. 

Sodium dimethyl dithiocarbamate/ disodium ethylene-bis-dithiocarbamate Moderate effectiveness in 3-8 hours against most bacteria 200 ppm of a 15% solution used weekly Stable under temperature and pH fluctuations reacts with dissolved iron to form a precipitate... 

The compound (562), which is important as an agricultural fungicide, is prepared by the aerial oxidation of ethylene bis(dithiocarbamate), and (563) results from the reaction of 1,3-dialkylimidazolidines with carbon disulfide. 

Cordier, M. (1954). Etude, du point de vue cenologique, des fungicide organique de synthese a base d ethylene-bis-dithiocarbamate de zinc. C. R. Acad. Agric. France 40, 243-246. 

Until about ten years ago, protectant foliar fungicides (such as ethylene bis-dithiocarbamates and phthalimides) and soil sterilants (such as vapam or methylbromide) were the only chemical means of controlling diseases caused by Oomycetes. These compounds are nonspecific biocides affecting many vital cell processes of both the pathogen and the host plant. This means that they are non-selective,... 

Ferbam. Ferric N,N-dimethyldithiocarbamate Ziram. Zinc N,N-dimethyldithiocarbamate Nabam. Disodium ethylene-bis (dithiocarbamate)... 

Meco G, Bonifati V, Vanacore N, and Fabrizio E (1994) Parkinsonism after chronic exposure to the fungicide maneb (manganese ethylene-bis-dithiocarbamate). Scandinavian Journal of Work Environment and Elealth 20 301-305. 

Exposure routes and pathways to mancozeb are similar to the other commonly used ethylene(bis)-dithiocarbamates, maneb. Mancozeb has been shown to cross sensitize with zineb and maneb. 

Belpoggi E, Soffritti M, Guarino M, Lambertini L, Cevolani D, and Maltoni C (2002) Results of long-term experimental studies on the carcinogenicity of ethylene-bis-dithiocarbamate (Mancozeb) in rats. Annals of New York Academy of Sciences 982 123-136. 

Synonyms Manganese ethylenebis(dithiocarba-mate) Ethylene bis(dithiocarbamic acid)-manga-nese salt Farmaneb Manesan Manex Manzate Nereb Newspor... 

An ethylene bis-dithiocarbamate (EBDC) fungicide degrades in a storage tank to N,N-ethylene thiourea (ETU) at a rate of 0.046/day at 20°C at 0°C, the reaction proceeds at a rate of 0.011/day. How fast will the reaction proceed at 15°C ... 

Derivation Oxidation of diammonium ethylene bis-dithiocarbamate with calcium hypochlorite. 

A10. Carugno, D.N. Search and determination of decomposition products of zinc ethylene bis(dithiocarbamate) in 21A28. 

Ethylene-bis-dithiocarbamic acid (nabam) is a fungicide. Through bioactivation it gives birth to an alkylating di-isothiocyanate, able to block the reactive thiol functions of the parasitic fungus. Af-Methylation of nabam inactivates the compound because it prevents its transformation into diisothiocyanate (Fig. 19.15). 

EMC (ethyl mercuric chloride), DD mixture, HCB (hexachlorobenzene), PCNB, Ambam (diammonium ethylene bis(dithiocarbamate)), Zineb, Urbazid (methylarsine bis(dimethyldithiocarbamate)), Captan, Captafol, Asozine methylarsine sulfide, p-aminobenzene sulfonic acid... 

Ethylene bis dithiocarbamic acid manganese zinc complex. See Mancozeb Ethylenebis (iminodiacetic acid) tetrasodium salt. See Tetrasodium EDTA Ethylene bis (mercaptoacetate). See Glycol dimercaptoacetate... 

Synonyms Ethylene bis dithiocarbamic acid manganese zinc complex Maneb, zinc enriched Manganese ethylenebis dithiocarbamate complex with zinc salt Manoseb Manzeb... 

MRM, multiresidue method SW, surface water LC, Uquid chromatography UV, ultraviolet detector MS, mass spectrometric detector GC, gas chromatography ECD, electron capture detector EBDCs, ethylene(bis)dithiocarbamates DW, drinking water PW, pure water NPD, nitrogen-phosphorous... 

At that time chemists became more and more interested in process where the electron transfer at the electrode surface is associated with some sparingly soluble compounds The application of polarography (voltammetry) to the study of suspensions was such case (see also the Sect. 5.5.1). In case of a dropping mercury electrode, two processes happen (1) The attachment of solid particles to the mercury surface due to capillary forces, and (2) the cathodic reduction of these particles. In case of solid particles of ethylen-bis-dithiocarbamate of zinc, a peak is observed at —0.7 V, both in DCP and in ACP. However, in polarography of suspensions, one faces problems the stabilization of particles in the suspension plays an important role, and the signal of the solid particles overlaps with the wave of dissolved compound, and the constant flux of particles to the surface has to be maintained. Unlike the flux of ions, which is controlled by diffusion, the flux of particles is controlled by the stirring of the solution, which has to be very well controlled to achieve reproducible results (Lyalikov, Sister) [208]. 

The manganese ethylene bis(dithiocarbamate) complex MANEB is used as a fungicide (15). Manganese is a well-known toxin for Parkinsonism in humans, while dithiocarbamates can induce extra-pyramidal syndromes. One publication details the development of permanent Parkinsonism in a 37-year old man exposed to MANEB for only 2 years (1134), and follows a previous report of the same symptoms developed after 10 years exposure (1135). 

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