3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff

Bezeichnung:3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff

CAS-Nr330-55-2

Englisch Name:Linuron

CBNumberCB2749714

SummenformelC9H10Cl2N2O2

Molgewicht249.09

MOL-Datei330-55-2.mol

Synonyma

Linuron

3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff

N'-(3,4-dichlorphenyl)-N-methoxy-N-methylharnstoff

3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff physikalisch-chemischer Eigenschaften

Schmelzpunkt	93-94°C
Siedepunkt	180-190°C
Dichte	1.4909 (rough estimate)
Brechungsindex	1.6100 (estimate)
Flammpunkt	11 °C
storage temp.	APPROX 4°C
Löslichkeit	DMSO : 100 mg/mL (401.46 mM; Need ultrasonic)
pka	12.13±0.70(Predicted)
Aggregatzustand	Crystalline Solid
Farbe	White
Wasserlöslichkeit	0.0075 g/100 mL
BRN	2128725
CAS Datenbank	330-55-2(CAS DataBase Reference)
NIST chemische Informationen	N'-(3,4-Dichlorophenyl)-N-methoxy-N-methylurea(330-55-2)
EPA chemische Informationen	Linuron (330-55-2)

Sicherheit

Kennzeichnung gefährlicher	T;N,N,T,F
R-Sätze:	61-22-40-48/22-50/53-62-39/23/24/25-23/24/25-11
S-Sätze:	53-45-60-61-36/37-16-7
RIDADR	UN 3077
WGK Germany	3
RTECS-Nr.	YS9100000
HS Code	29280000
Giftige Stoffe Daten	330-55-2(Hazardous Substances Data)
Toxizität	LD50 orally in rats: 1500 mg/kg (Bailey, White)

Gefahreninformationscode (GHS)

Linuron Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSE KRISTALLE
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen unter Bildung giftiger Rauche mit Chlorwasserstoff und Stickstoffoxiden.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols und durch Verschlucken.
INHALATIONSGEFAHREN
Verdampfen bei 20°C vernachlässigbar; eine belästigende Partikelkonzentration in der Luft kann jedoch beim Versprühen oder Dispergieren schnell erreicht werden, vor allem als Pulver.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Möglich sind Auswirkungen auf das Blut. Führt zu Blutarmut.
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: Umgebungsluftunabhängiges Atemschutzgerät.
R-Sätze Betriebsanweisung:
R61:Kann das Kind im Mutterleib schädigen.
R22:Gesundheitsschädlich beim Verschlucken.
R40:Verdacht auf krebserzeugende Wirkung.
R48/22:Gesundheitsschädlich: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Verschlucken.
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R62:Kann möglicherweise die Fortpflanzungsfähigkeit beeinträchtigen.
R39/23/24/25:Giftig: ernste Gefahr irreversiblen Schadens durch Einatmen, Berührung mit der Haut und durch Verschlucken.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R11:Leichtentzündlich.
S-Sätze Betriebsanweisung:
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
Beschreibung
Linuron is found as white crystals that have no smell. It is very slightly soluble in water. Linuron can enter the body either by ingestion of contaminated food or water or by dermal contact. Linuron can cause nausea, vomiting, and diarrhea. Eye contact can cause irritation. There is little evidence available as to the effects of exposure to linuron on human health. However, exposure to linuron at normal background levels is unlikely to have any adverse effect on human health.
Chemische Eigenschaften
White crystalline solid or powder. Odorless. Commercial product may be available a water soluble or emulsifiable concentrate.
Verwenden
Linuron is used to control annual and perennial broadleaf and grassy weeds on crop and noncrop sites. It is used as a pre- and post-emergent herbicide. It works by inhibiting photosynthesis in target weed plants. It is used in soybean, cotton, potato, corn, bean, pea, winter wheat, asparagus, carrot, and fruit crops. It is also used on crops stored in warehouses and storerooms. Linuron is classified by the US Environmental Protection Agency (EPA) as a Restricted Use Pesticide (RUP).
Verwenden
Selective preemergence and postemergence herbicide used on a wide variety of food crops to control many annual broad-leaved and grass weeds.
Verwenden
Selective pre- and post-emergence herbicide. A restricted use pesticide.
Definition
ChEBI: A member of the class of ureas that is N-methyl urea substituted by a methoxy group at position 1 and a 3,4-dichlorophenyl group at position 3.
Allgemeine Beschreibung
Colorless crystals. Non corrosive. Used as an herbicide.
Air & Water Reaktionen
Hydrolyzed slowly by acids and bases.
Reaktivität anzeigen
A urea derivative.
Health Hazard
Lowtomoderatelytoxicbyingestion—LD50varying with experimental animals; 4-hourexposure to its vapors at 48 mg/m³ was lethalto rats; toxic properties similar to those ofMonuron.
LD50 oral (rat): 1146 mg/kg
LD50 oral (mouse): 2400 mg/kg
LD50 inhalation (rat): 48 mg/m³ /4 h.
Landwirtschaftliche Anwendung
Herbicide: Inhibits photosynthesis. Linuron is a selective, pre-emergence herbicide used to control grasses and broadleaf weeds in carrots, beans, peas, asparagus, maize, potatoes, soybeans, sorghum, wheat, bananas, coffee, cotton and ornamentals. It is also used for control of annual weeds in storehouses, roadsides, fence rows and other noncrop lands. Linuron is frequently used in formulations with other herbicides, insecticides and fungicides.
Handelsname
AFALON®; ALIBI®; ALISTELL®; BROADCIDE 20EC®; BRONOX®; CERTOLLIN ONIONS®; CLOVACORN EXTRA®; CROP WEEDSTOP®; DU PONT 326®[C]; FF6135' HERBICIDE 326®; GARNITAN®; H 326®; GEMINI®[C]; HERBICIDE 326®; HOE 2810®; JANUS®; LANDSIDE®; LINNET®; LINEX®; LINOROX®; LINUREX®; LOREX®; LOROX®[C]; MARKSMAN 1®; NEMINFEST®; ONSLAUGHT®; PRE-EMPT®; PREMALIN®; PROFALON®; ROTILIN®; SARCLEX®; SCARCLEX®; SINURON®; STAY KLEEN®; TEMPO®; TRIFARMON FL®; TRIFLURON®; TRILIN®; URANUS® (trifluralin + linuron); WARRIOR®
Sicherheitsprofil
Poison by inhalation. Moderately toxic by ingestion. Mutation data reported. A selective herbicide used in farming. Vlihen heated to decomposition it emits very toxic fumes of Cl and NOx. See also 3-@-CHLOROPHENYL)-1,1 DIMETHYLUREA.
mögliche Exposition
Inhibits photosynthesis. Linuron is a selective, pre-emergence urea herbicide used to control grasses and broadleaf weeds in carrots, beans, peas, asparagus, maize, potatoes, soybeans, sorghum, wheat, bananas, coffee, cotton, and ornamentals. It is also used for control of annual weeds in storehouses, roadsides, fence rows and other noncrop lands. Linuron is frequently used in formulations with other herbicides, insecticides, and fungicides
Environmental Fate
Soil. Linuron degraded in soil forming the common metabolite 3,4-dichloroaniline (Duke et al., 1991). In an aerobic, biologically active, organic-rich, pond sediment, linuron was converted to the intermediate 3-(3-chlorophenyl)-1-methoxymethylurea. This compound further degraded to unidentified compounds (Stepp et al., 1985).
Linuron was degraded by Bacillus sphaericus in soil forming N,O-dimethylhydroxylamine and carbon dioxide (Engelhardt et al., 1972). Only 1 ppm 3,4-dichloroaniline was identified in soils after incubation of soils containing 500 ppm linuron (Belasco and Pe
The half-lives for linuron in soil incubated in the laboratory under aerobic conditions ranged from 56 to 88 days with an average of 75 days (Moyer et al., 1972; Hance, 1974; Usorol and Hance, 1974). In field soils, the average half-life for linuron was 8
Plant. Undergoes demethylation and demethoxylation in plants (Hartley and Kidd, 1987). Metabolites identified in carrots 117 days after treatment were 3,4-dichlorophenylurea, 3-(3,4-dichlorophenyl)-1-methylurea and 3,4-dichloroaniline. About 87% of the linuron remained unreacted (Loekke, 1974).
Photolytic. When an aqueous solution of linuron was exposed to summer sunlight for 2 months, 3-(3-chloro-4-hydroxyphenyl)-1-methoxy-1-methylurea, 3,4-dichlorophenylurea and 3-(3,4-dichlorophenyl)-1-methylurea formed at yields of 13, 10 and 2%, re
Stoffwechselwegen
The main photoproducts initially formed in the phototransformation of linuron and chlorbromuron in aqueous solution result from photolysis, i.e. hydroxylation with release of the halide ion, and from elimination of a methoxy group. The orientation of the reaction depends on the wavelength: short wavelengths (254 nm) favor demethoxylation and photolysis in the meta position,whereas, with black light longer than 330 nm, photolysis in the para position is the main reaction observed. In soils, 4-bromo-3-chloroaniline is identified as a soil degradation product of chlorbromuron.
Versand/Shipping
UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
Toxicity evaluation
As a reproductive and developmental toxicant, linuron works via androgen receptor antagonist activity; that is, it competes with testosterone for binding to the androgen receptor. In mouse tissues, linuron competitively blocked transcription through androgen receptor induced by dihydrotestosterone in a concentration-dependent manner.
Inkompatibilitäten
Amides are 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, and epoxides. Similar organic amides react with azo and diazo compounds, releasing toxic gases. Contact with reducing agents can release flammable gases. Amides are very weak bases but they can react as acids, forming salts. Mixing amides with dehydrating agents such as such as phosphorus pentoxide or thionyl chloride generates the corresponding nitrile
Waste disposal
Incinerate in a unit operating at 850C equipped with off-gas scrubbing equipment. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office

Linuron Upstream-Materialien And Downstream Produkte

3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

330-55-2, Linuron Verwandte Suche:

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