Mancozeb

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Structural formula
Structure of Mancozeb
x: y = 94: 6
General
Surname Mancozeb
other names
  • Manganese-zinc-ethylene bis (dithiocarbamate)
  • Mixture of (ethylene bis (ditiocarbamate)) manganese and (ethylene bis (dithiocarbamate)) zinc
  • Maneb-Zineb mixed complex
Molecular formula (C 4 H 6 MnN 2 S 4 ) x · (C 4 H 6 N 2 S 4 Zn) y with x: y = 94: 6
Brief description

yellow solid with a smell of sulfur

External identifiers / databases
CAS number 8018-01-7
EC number 616-995-5
ECHA InfoCard 100.122.419
PubChem 3034368
Wikidata Q409132
properties
Molar mass 541.07 g mol −1 (for x: y = 1: 1)
Physical state

firmly

density

1.92 g cm −3 (for x: y = 1: 1)

Melting point

192–194 ° C (decomposition, for x: y = 1: 1)

solubility

almost insoluble in water (6 µg l −1 at 25 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
08 - Dangerous to health 07 - Warning 09 - Dangerous for the environment

Caution

H and P phrases H: 317-361d-400
P: 273-280
Toxicological data

> 5000 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Mancozeb is a chemical compound from the group of dithiocarbamates that is used as a pesticide ( fungicide ).

history

Mancozeb was approved in the United States in 1948 as a broad spectrum fungicide for agriculture and horticulture.

Extraction and presentation

Mancozeb is obtained by reacting Maneb with zinc chloride . It is present as a mixture of manganese-ethylene bisdithiocarbamate and zinc-ethylene bisdithiocarbamate and can be expressed with the ratio formula (C 4 H 6 MnN 2 S 4 ) x · (C 4 H 6 N 2 S 4 Zn) y with x: y = 94: 6 describe.

use

Usage in the USA

Mancozeb is used under various trade names (e.g. Dithane, Manzeb, ...) as an active ingredient in pesticides ( fungicide ) in many agricultural and horticultural products (e.g. many types of fruit, vegetables, nuts and grains, but also potatoes, Wine, corn and cotton), also used in combination with the active ingredients Zineb and Maneb . Mancozeb only has a preventive contact effect.

regulation

The EU approval expired on January 31, 2018. At the national level, Mancozeb is approved in 27 EU countries as well as in Switzerland and is contained in numerous plant protection products. The permitted daily dose is 0.05, the acute reference dose is 0.6 and the acceptable user exposure is 0.035 milligrams per kilogram of body weight and day.

Web links

Individual evidence

  1. ↑ a b c Joint Meeting on Pesticide Residues (JMPR), Monograph for Mancozeb , accessed December 9, 2014.
  2. ↑ a b c d e f Entry on Mancozeb in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
  3. ↑ Entry on mancozeb (ISO) in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. ↑ entry mancozeb at Extoxnet, accessed on 29 January 2018th
  5. ↑ United States Environmental Protection Agency: Mancozeb Facts ( Memento of October 6, 2006 in the Internet Archive ) (PDF file; 110 kB).
  6. ↑ ProfiFlor.de: Mancozeb , accessed on January 29, 2018.
  7. ↑ General Directorate Health and Food Safety of the European Commission: Entry on Mancozeb in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 13, 2016.