Zineb

Bezeichnung:Zineb

CAS-Nr12122-67-7

Englisch Name:Zineb

CBNumberCB1497049

SummenformelC4H6N2S4Zn

Molgewicht275.75

MOL-Datei12122-67-7.mol

Synonyma

Zineb

Zinkethylenbis(dithiocarbamat)

((1,2-Ethandiylbis(dithiocarbamato))(2-))zinc

Zineb physikalisch-chemischer Eigenschaften

Schmelzpunkt	157°C (rough estimate)
Dampfdruck	<1x l0^-5 at 20 °C
Flammpunkt	90℃
storage temp.	2-8°C
Löslichkeit	DMSO (Heated, Very Slightly)
Aggregatzustand	Water-Insoluble Powder
Wasserlöslichkeit	ca.10 mg l^-1 (room temperature)
Dichte	1.74 g/cm3
Merck	13,10220
BRN	4165797
InChIKey	AMHNZOICSMBGDH-UHFFFAOYSA-L
CAS Datenbank	12122-67-7(CAS DataBase Reference)
IARC	3 (Vol. 12, Sup 7) 1987
EPA chemische Informationen	Zineb (12122-67-7)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	37-43
S-Sätze:	8-24/25-46
RIDADR	UN 3077 9 / PGIII
WGK Germany	3
RTECS-Nr.	ZH3325000
HazardClass	6.1
PackingGroup	III
HS Code	29309090
Giftige Stoffe Daten	12122-67-7(Hazardous Substances Data)
Toxizität	LD50 orally in rats: >5000 mg/kg (Gaines)

Gefahreninformationscode (GHS)

Zineb Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
HELLGEFäRBTES PULVER.
PHYSIKALISCHE GEFAHREN
Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft möglich.
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen und beim Verbrennen unter Bildung giftiger und reizender Rauche mit Stickstoffoxiden und Schwefeloxiden. Instabil bei Einwirkung von Licht und Feuchtigkeit.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols.
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 Dermatitis hervorrufen. Wiederholter oder andauernder Kontakt kann zu Hautsensibilisierung führen. Möglich sind Auswirkungen auf Blut, Zentralnervensystem und Leber.
LECKAGE
NICHT in die Kanalisation spülen. Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.
R-Sätze Betriebsanweisung:
R37:Reizt die Atmungsorgane.
R43:Sensibilisierung durch Hautkontakt möglich.
S-Sätze Betriebsanweisung:
S8:Behälter trocken halten.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S46:Bei Verschlucken sofort ärztlichen Rat einholen und Verpackung oder Etikett vorzeigen.
Beschreibung
Zineb is a light-coloured powder/crystal and insoluble in water. Zineb is one of the nonsystemic (surface-acting) fungicides of the group ethylenebisdithiocarbamates (EBDCs). Zineb is a polymer of ethylene (bis)thiocarbamate units linked with zinc and used for the control and prevention of crop damage in the field and also to protect harvested crops from deterioration during storage or transport. Zineb was used to protect fruit and vegetable crops from a wide range of foliar and other diseases. It was available in the United States as wettable powder and dust formulations. Zineb can be formed by combining nabam and zinc sulphate in the spray tank.
Chemische Eigenschaften
Pure product is white crystal, industrial product is white to light yellow powder. Soluble in carbon disulfide and pyridine, insoluble in most organic solvents, insoluble in water (10mg/L). It is unstable to light, heat and humidity, and decomposes easily when it meets alkaline substances or copper. The decomposition products of zineb include ethylene thiourea, which is more toxic.
Verwenden
Zineb is a light-colored powder or crystal. It is a polymer of ethylene (bis) thiocarbamate units linked with zinc. Zineb is used to prevent crop damage in the field and to protect harvested crops from deterioration during storage or transport. It was used to protect fruit and vegetable crops from a wide range of foliar and other diseases. It was available in the United States as wettable powder and dust formulations. Zineb can be formed by combining nabam and zinc sulfate in a spray tank.
Verwenden
Zineb is a contact fungicide that provides protection against a wide variety of fungal diseases (including leaf spots, blights, rust, downy mildew, scab, etc.) in field crops, fruits, vines, vegetables, ornamentals, citrus and bananas.
Definition
ChEBI: Zineb is a polymeric complex of zinc with the ethylene bis(dithiocarbamate) anionic ligand. Formerly used as an agricultural fungicide for the control of downy mildews and rusts, its use is no longer permitted in the US or the EU. It has a role as an antifungal agrochemical. It is a macromolecule, a zinc coordination entity and a dithiocarbamate salt. It contains an ethylenebis(dithiocarbamate).
Allgemeine Beschreibung
An off-white powder. Used as a fungicide.
Air & Water Reaktionen
Decomposes gradually, accelerated by exposure to air, moisture, and heat. Insoluble in water. 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
Zineb is a zinc salt of a dithiocarbamic acid. May generate flammable gases with aldehydes, nitrides, and hydrides. Incompatible with acids, peroxides, and acid halides.
Hazard
Toxic by inhalation and ingestion; irritant to eyes and mucous membranes. Questionable carcinogen.
Brandgefahr
Flash point data for Zineb are not available, but Zineb is probably combustible.
Kontakt-Allergie
Zineb is a pesticide of the dithiocarbamate group. Sensitization can occur in gardeners and florists.
Stoffwechselwegen
Zineb and other alkylenebis( dithiocarbamate) fungicides are degraded and metabolised via a common pathway. The primary degradation reaction of zineb in water, soil, 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).
läuterung methode
Crystallise this herbicide several times from hot toluene or from hot CHCl3 by addition of EtOH. It is a skin irritant. [Beilstein 4 III 149, 4 IV 234.]
Degradation
[¹⁴C-ethylene]Zineb(1) was decomposed mainly to ETU (2) in an aqueous suspension after 14 days via the 5,6-dihydro-3H-imidazo[2,1-c]-1,2,4- dithiazole-3-thione (3) intermediate (Vonk, 1976). In dilute alkaline solution and in the presence of light, heat and moisture, zineb decomposed rapidly to compound 3 (Marshall, 1978). ETU (2) in aqueous solutions was further converted into 2-imidazoline (4) and EU (5) (kaars Sijpesteijn and Vonk, 1974). Zineb decomposed in sterile marine culture medium to yield ETU (2) and compound 3. In the presence of copper, an additional degradation product, ethylene diisothiocyanate (6), was also observed (Hunter and Evans, 1991).
Toxicity evaluation
Zineb has a low mammalian toxicity however, it may cause adverse reproduction/developement effects if ingested. It is moderately toxic to most fauna and flora.

Zineb Upstream-Materialien And Downstream Produkte

Zineb Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

12122-67-7, Zineb Verwandte Suche:

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