Maneb

Structural formula
General
Surname	Maneb
other names	Manganese ethylene-1,2-bis-dithiocarbamate; Manganese (II) - [ N , N ′ -ethylene bis (dithiocarbamate)];
Molecular formula	C 4 H 6 MnN 2 S 4
Brief description	yellow, odorless solid
External identifiers / databases
EC number	235-654-8
ECHA InfoCard	100.032.400
PubChem	3032581
ChemSpider	2297517
Wikidata	Q409156
properties
Molar mass	265.31 g mol −1
Physical state	firmly
density	1.92 g cm −3 (25 ° C)
Melting point	Decomposes at 192-204 ° C
solubility	bad in water (160 mg l −1 )
safety instructions
H and P phrases	H: 317-319-332-361d-410
	P: 273-280-305 + 351 + 338-501
Toxicological data	5000–8000 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 .

Maneb (abbreviation for manganese ethylene-1,2-bis-dithiocarbamate ) is a chemical compound from the group of dithiocarbamates , which as crop protection agents used in fungal diseases. It is a yellowish, slightly water-soluble powder. Maneb remains as a residue from the treatment of agricultural crops in fruits and vegetables.

use

Maneb is used as a pesticide for fungal diseases ( fungicide ). For example against late blight and brown rot ( Phytophthora ) and the dry spot disease ( Alternaria ) on potatoes and tomatoes, against downy mildew and rust fungi on ornamental plants and against blue mold ( Peronospora tabacina ) on tobacco. In 2007, between 100 and 250 t of maneb was used in Germany; in 2011 the amount used fell to 25–100 t.

Admission

Maneb is no longer approved or sold in Germany, Austria and Switzerland.

safety instructions

Maneb is practically non-toxic, but it may be teratogenic , so it can harm the unborn child.

Web links

Federal Office for Consumer Protection: Maximum Residue Quantity Ordinance
Joint Meeting on Pesticide Residues (JMPR), Monograph for Maneb

Individual evidence

↑ ^a ^b ^c ^d ^e ^f Entry on Maneb in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
↑ Entry on Maneb 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 .
↑ Extoxnet: maneb .
^ Raiffeisen: BASF-Maneb spray powder .
↑ Federal Office for Consumer Protection: Domestic sales and export of active ingredients in plant protection products for 2007 .
↑ Federal Office for Consumer Protection: Domestic sales and export of active ingredients in plant protection products for 2011 .
^ Directorate-General for Health and Food Safety of the European Commission: Entry on Maneb in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on December 6, 2019.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f Entry on Maneb in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .

[CLP_100.032.400-2] Entry on Maneb 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 .

[3] Extoxnet: maneb .

[4] Raiffeisen: BASF-Maneb spray powder .

[5] Federal Office for Consumer Protection: Domestic sales and export of active ingredients in plant protection products for 2007 .

[6] Federal Office for Consumer Protection: Domestic sales and export of active ingredients in plant protection products for 2011 .

[PSM-7] Directorate-General for Health and Food Safety of the European Commission: Entry on Maneb in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on December 6, 2019.