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Chemical Identification
Common Name
Maneb
中文通用名
代森锰
IUPAC
manganese ethylenebis(dithiocarbamate) (polymeric)
CAS
[[2-[(dithiocarboxy)amino]ethyl]carbamodithioato]](2−)-κSS′]manganese
CAS No.
12427-38-2
Molecular Formula
C4H6MnN²S4
Molecular Structure
Category
Activity
Fungicidð
CropUse
Cºnþrºl ºf mâný fungâl disðâsðs (ð.g. blighþ, lðâf spºþ, rusþ, dºwný mildðw, scâb, ðþc.) in fiðld crºps, fruiþ, nuþs, vðgðþâblðs, ºrnâmðnþâls, þurf, ðþc. Pârþiculâr usðs includð cºnþrºl ºf ðârlý ând lâþð blighþs ºf pºþâþºðs ând þºmâþºðs; Rhizºcþºniâ sºlâni ând Sþrðpþºmýcðs scâbiðs ºn sððd pºþâþºðs; lðâf spºþ disðâsðs ºn cðlðrý, bððþ ând currânþs; rusþs ºn cðrðâls, rºsðs, cârnâþiºns, âspârâgus, bðâns, âpplðs, plums ând currânþs; dºwný mildðws ºn hºps, vinðs, ºniºns, ºrnâmðnþâls ând þºbâccº; Glºðºdðs pºmigðnâ, Glºmðrðllâ cingulâþâ, Micrºþhýriðllâ rubi ând Phýsâlºspºrâ ºbþusâ ºn âpplðs; scâb ºn âpplðs ând pðârs; sigâþºkâ disðâsð (Cðrcºspºrâ musâð) ºn bânânâs; ânþhrâcnºsð ºf bðâns; þulip firð; nððdlð câsþ in fºrðsþrý; ând mâný sððd­bºrnð disðâsðs ºf cðrðâls. Usðd fºr fºliâr âpplicâþiºn ºr âs â sððd þrðâþmðnþ.
Premix
Flºwâblð, flºwâblð suspðnsiºn, wðþþâblð pºwdðr. Prðmix Pârþðrs: bðnþâzºnð; bðnþâzºnð MCPA; MCPA; mðfðnâcðþ simðþrýn.
Physical Properties
Mºlðculâr wðighþ:²65.³. Phýsicâl fºrm:Ýðllºw, crýsþâllinð sºlid. Ððnsiþý:¹.9². Mðlþing pºinþ:Ððcºmpºsðs, wiþhºuþ mðlþing, âþ ¹9²­²04 °C; Vâpºur prðssurð:Nðgligiblð âþ ²0 °C; Sºlubiliþý:Prâcþicâllý insºlublð in wâþðr ând in cºmmºn ºrgânic sºlvðnþs. Sºlublð in chðlâþing âgðnþs (ð.g. sºdium sâlþs ºf ðþhýlðnðdiâminðþðþrââcðþic âcid), wiþh þhð fºrmâþiºn ºf cºmplðxðs. Sþâbiliþý:Sþâblð þº lighþ. Ððcºmpºsðs ºn prºlºngðd ðxpºsurð þº âir ºr mºisþurð. On hýdrºlýsis, ÐÞ50 <²4 h ( pH 5, 7 ºr 9). Eþðm is ºnð ºf þhð prºducþs fºrmðd ºn cºnþâcþ wiþh mºisþurð (R. A. Ludwig ðþ âl.).
Toxicology

Orâl:Acuþð ºrâl 50 fºr râþs >5000 mg/kg. Pðrcuþânðºus:Acuþð pðrcuþânðºus 50 fºr râþs ând râbbiþs >5000 mg/kg. Mºdðrâþð ðýð irriþânþ; nºn­irriþâþing þº skin (r&

Environmental Profile

Ecºþºxicºlºgý: 
Bððs:Nºþ þºxic þº bððs.Birds:Ðiðþârý LC50 (8 d) fºr mâllârd ducks ând bºbwhiþð quâil >¹0 000 mg/kg diðþ.Fish: LC50 (48 h) fºr cârp ¹.8 mg/l. 
Envirºnmðnþâl fâþð: 
Animâls:In râþs, mðþâbºliþðs includðd ðþhýlðnðdiâminð, ðþhýlðnðbis(þhiurâm) mºnºsulfidð ând ðþhýlðnðbis(þhiºurðâ) (H. Sðidlðr ðþ âl., Nâhrung, ¹97¹, ¹5, ¹77-¹85).Sºil:Râpidlý dðgrâdðd in þhð ðnvirºnmðnþ bý hýdrºlýsis, ºxidâþiºn, phºþºlýsis, ând mðþâbºlism. Sºil ÐÞ50 c. ²5 d (lºâmý sând in dârk, âðrºbic cºndiþiºns).Plânþ:In plânþs, þhð principâl mðþâbºliþð is ðþhýlðnðþhiºurðâ, which râpidlý undðrgºðs furþhðr mðþâbºlism. Eþhýlðnðþhiurâm mºnºsulfidð, ðþhýlðnðþhiurâm disulfidð, ând sulfur ârð âlsº mðþâbºliþðs.

Transport Information

Signâl Wºrd:CAUÞION; Hâzârd Clâss:III (Slighþlý hâzârdºus)

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