Maneb Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
GELBES PULVER ODER KRISTALLE.
CHEMISCHE GEFAHREN
Zersetzung bei Kontakt mit Säuren und Feuchtigkeit unter Bildung giftiger und entzündlicher Gase mit Schwefelwasserstoff undKohlenstoffdisulfid.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK: Sensibilisierung der Haut; (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols und durch Verschlucken.
INHALATIONSGEFAHREN
Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz reizt die Augen, die Haut und die Atemwege.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Wiederholter oder andauernder Hautkontakt kann zu Hautsensibilisierung führen. Möglich sind Auswirkungen auf Nierenund Zentralnervensystem. Führt zu Nierenschäden und neurologischen, neuropsychiatrischen Erkrankungen (Manganismus).
LECKAGE
NICHT in die Kanalisation spülen. Verschüttetes Material in abdichtbaren Behältern sammeln. Reste sorgfältig sammeln. An sicheren Ort bringen. NICHT in die Umwelt gelangen lassen. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.
R-Sätze Betriebsanweisung:
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
R43:Sensibilisierung durch Hautkontakt möglich.
R37:Reizt die Atmungsorgane.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S46:Bei Verschlucken sofort ärztlichen Rat einholen und Verpackung oder Etikett vorzeigen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S8:Behälter trocken halten.
Beschreibung
Maneb is a pesticide with fungicide properties and
belongs to the carbamate (bis-dithiocarbamate) group.
Sensitization occurs mainly in farmers and agricultural
workers.
Chemische Eigenschaften
Maneb is a yellow powder or crystalline solid
with a faint odor.
Verwenden
Maneb is a complex of manganese with the ethylene bis(dithiocarbamate) anionic ligand. Maneb is a foliate fungicide used to protect crops in agriculture. Maneb is also useful in creating a toxin-based animal (usually primates) model of Parkinson's disease.
Definition
ChEBI: A polymeric complex of manganese with the ethylene bis(dithiocarbamate) anionic ligand. An agrochemical fungicide, it is used to control a variety of diseases including blight, leaf spot, rust, downy mildew and scab.
Allgemeine Beschreibung
Maneb is a yellow powder or crystalline solid. Maneb is denser than water. Contact may irritate skin, eyes and mucous membranes. Maneb may be toxic by ingestion. Likely to generate heat spontaneously upon exposure to air or water. May be sufficient to ignite the material. Maneb is used as a fungicide. Formulations of Maneb include mixing Maneb with many other chemicals such as sulfur, zinc oxide and others to desensitize it. This is done to make Maneb easer for application.
Air & Water Reaktionen
Highly flammable. Soluble in water. Maneb is likely to generate heat spontaneously, especially when wet. The heat may be sufficient to ignite the material. Thio and dithiocarbamates slowly decompose in aqueous solution to form carbon disulfide and methylamine or other amines. Such decompositions are accelerated by acids.
Reaktivität anzeigen
The BPS Pesticide incident in Helena resulted in an explosion and death of three firemen. The burning of a 1,000 pound sack of Azinphos Methyl or the flashing of Maneb which was present on the facility may have caused the explosion.
Health Hazard
Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.
Brandgefahr
Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.
Landwirtschaftliche Anwendung
Fungicide: Maneb is an ethylene(bis)dithiocarbamate fungicide
used in the control of early and late blights on potatoes
and tomatoes and many other diseases of fruits, vegetables,
field crops, and ornamentals. Maneb controls a wider
range of diseases than other fungicides. It is available
as granular, wettable powder, flowable concentrate, and
ready-to-use formulations. Maneb is widely used by itself
and in combination with other pesticides on a variety of
crops. Principal uses in California are for head and leaf
lettuce, walnuts, almonds, onions, potatoes and broccoli.
Handelsname
(The U.S. EPA lists more than 460 active and/
or canceled products containing maneb) AAMANGAN®;
AKZO CHEMIE MANEB®; BASF-MANEB
SPRITZPULVER®; BAVISTIN M®; COSMIC®; CHEM
NEB®; CHLOROBLE M®; CLEANACRES®; CR 3029®;
DELSENE M FLOWABLE®; DITHANE-22®; F 10®;
FARMANEB®; IDA MANEB®; KASCADE®; KYPMAN
80®; LONOCOL M®; MANAM®; MANEB 80®;
MANEBA®; MANEBE®; MANEBGAN®; MANESAN®;
MANESAN®; MANEX®; MANOC®; MANZATE®;
MANZATE D®; MANZATE MANEB FUNGICIDE®;
MANZEB®; MANZI®; M-DIPHAR®; MULTI-W®;
NEREB®; NESPOR®; NEWSPOR®; PLANTIFOG
160 M®; POLYRAM M®; REMASAN CHLOROBLE
M®; RHODIANEHE®; SOPRANEBE®; SQUADRON
AND QUADRANGLE MANEX®; SUPERMAN MANEB
F®; SUP'R FLO®; TERSAN-LSR®; TRIMANGOL®;
TRIMANOC®; TRITHAC®; TUBOTHANE®; UNICROP
MANEB®; VANCIDE®; VANCIDE MANEB 80®;
VASSGRO MANEX®; VITAVAX® Maneb
Kontakt-Allergie
Maneb is a pesticide with fungicide properties, belong-ing to the dithiocarbamate group. Sensitization occursmainly in farmers and agricultural workers.
Sicherheitsprofil
Moderately toxic by
ingestion. Experimental teratogenic and
reproductive effects. Questionable
carcinogen with experimental carcinogenic
and tumorigenic data. Mutation data
reported. A fungcide. May ignite
spontaneously in air. When heated to
decomposition it emits highly toxic fumes of
NOx and SOx. See also MANGANESE
COMPOUNDS and CARBAMATES.
mögliche Exposition
A potential danger to those involved
in manufacture, formulation, and application of this broad
spectrum dithiocarbamatefungicide. Some dithiocarbamates
have been used as rubber components. DFG warns of danger of skin sensitization. The BPS Pesticide incident in
West Helena, AK resulted in an explosion and death of
three firemen. The burning of a 1000-lb sack of Azinphos
Methyl or the flashing of Maneb which was present on the
facility may have caused the explosion
Stoffwechselwegen
Maneb and other alkylenebis(dithi0carbamate) fungicides are degraded
and metabolised via a common pathway. The primary degradation
reaction of maneb in water, soils, plants and animals involves the initial
dissociation of the metal complex and decomposition to numerous
degradation products including ethylenethiourea (ETU) and ethyleneurea
(EU) as major products (Scheme 1).
Versand/Shipping
UN2210 Maneb or Maneb preparations with
not <60% maneb, Hazard Class: 4.3; Labels: 4.3-Dangerous
when wet material, 4.2-Spontaneously combustible material. UN2968 Maneb stabilized or Maneb preparations,
stabilized against self-heating, Hazard Class: 4.3; Labels:
4.3-Dangerous when wet material
läuterung methode
Crystallise this fungicide from EtOH. It is soluble in CHCl3. It is a skin irritant.[Beilstein 4 III 149, 4 IV 234.]
Inkompatibilitäten
Incompatible with oxidizers (chlorates,
nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires
or explosions. Keep away from alkaline materials, strong
bases, strong acids, oxoacids, epoxides, water.
Dithiocarbamate esters are combustible. They react violently with powerful oxidizers such as calcium hypochlorite. Poisonous gases are generated by the thermal
decomposition of Dithiocarbamate compounds, including
carbon disulfide, oxides of sulfur, oxides of nitrogen,
hydrogen sulfide, ammonia, and methylamine. Thio and
dithiocarbamates slowly decompose in aqueous solution
to form carbon disulfide and methylamine or other
amines. Such decompositions are accelerated by acids.
Flammable gases are generated by the combination of
dithiocarbamate with aldehydes, nitrides, and hydrides.
Dithiocarbamate are incompatible with acids, peroxides,
and acid halides.
Waste disposal
Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA
regulations governing storage, transportation, treatment,
and waste disposal. Maneb is unstable to moisture and is
hydrolyzed by acids and hot water. It decomposes at about
100℃ but may spontaneously decompose vigorously when
stored in bulk. Incineration is the preferred disposal
means. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package
label directions or by contacting your local or federal environmental control agency, or by contacting your regional
EPA office
Maneb Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
