METSULFURON METHYL

Bezeichnung:METSULFURON METHYL

CAS-Nr74223-64-6

Englisch Name:METSULFURON METHYL

CBNumberCB9251528

SummenformelC14H15N5O6S

Molgewicht381.36

MOL-Datei74223-64-6.mol

METSULFURON METHYL physikalisch-chemischer Eigenschaften

Schmelzpunkt	158°C
Siedepunkt	181°C (rough estimate)
Dichte	1.4561 (rough estimate)
Brechungsindex	1.6460 (estimate)
storage temp.	0-6°C
Löslichkeit	DMSO (Slightly), Methanol (Slightly, Heated)
pka	2.55±0.10(Predicted)
Farbe	White to Off-White
Wasserlöslichkeit	27mg/L(temperature not stated)
BRN	587472
LogP	2.200
CAS Datenbank	74223-64-6(CAS DataBase Reference)
EPA chemische Informationen	Metsulfuron-methyl (74223-64-6)

Sicherheit

Kennzeichnung gefährlicher	N
R-Sätze:	50/53
S-Sätze:	60-61
RIDADR	UN3077 9/PG 3
WGK Germany	2
RTECS-Nr.	DH3563000
HS Code	29339900
Giftige Stoffe Daten	74223-64-6(Hazardous Substances Data)
Toxizität	LD50 in male and female rats, in male and female rabbits (mg/kg): >5000, >2000 orally; LC50 (96 hour) in American perch, rainbow trout: 150 ppm; LD50 in wild ducks: 2510 mg/kg (Lefebvre)

Gefahreninformationscode (GHS)

METSULFURON METHYL Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
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.
Chemische Eigenschaften
White, off-white or pale yellow crystalline solid. Slight, sweet odor; ester-like.
Chemische Eigenschaften
Light yellow solid
Verwenden
Herbicide.
Verwenden
Metsulfuron-methyl is an organic micro-pollutant.
Verwenden
Metsulfuron-methyl is a triazine urea herbicide used to control broad-leaved weeds in barley and wheat.
Definition
ChEBI: A N-sulfonylurea in which the sulfonyl group is attached to a 2-(methoxycarbonyl)phenyl group while a (4-methoxy-6-methyl-1,3,5-triazin-2-yl group replaces one of the amino hydrogens of the remaining urea group.
Landwirtschaftliche Anwendung
Herbicide: Metsulfuron-methyl is a pre-emergence and post-emergence herbicide used to control annual grasses, brush, woody plants and broadleaf weeds. It can be applied to cereals including barley, rye and wheat and to pastures. It is primarily used to control brush, woody plants and broadleaf weeds on rights-of-way, fence rows, storage areas, highways and other non-crop areas.
Handelsname
ALLIE®; ALLY®; ALLY-20DF®; ANSWER®; BRUSH-OFF®; CANVAS®; CIMARRON®; DMC® WEED CONTROL; DPD 63760H®; DPX 6376®; DPX-T 6376®; ESCORT®; FINESSE®; GROPPER®; NUP®; PARTISAN ®; PASTURE® MD; RIVERDALE®; ROSULFURON®
mögliche Exposition
Metsulfuron-methyl is a preemergence and postemergence sulfonylurea herbicide used to control annual grasses, brush, woody plants and broadleaf weeds. It can be applied to cereals including barley, rye and wheat and to pastures. It is primarily used to control brush, woody plants and broadleaf weeds on rights-of-way, fence rows, storage areas, highways and other noncrop areas.
Environmental Fate
Soil/Plant. Hydrolyzes in soil and plants to nontoxic products (Hartley and Kidd, 1987). The half-life in soil varies from 7 days to 1 month (Hartley and Kidd, 1987).
Ismail and Lee (1995) studied the persistence of metsulfuron-methyl in a sandy loam (pH 5.1) and clay soil (3.1) under laboratory conditions. Degradation was more rapid in non-sterilized than in sterilized soil. In non-sterilized soil, the rate of degradation increased with increasing soil moisture content. When the moisture level in the sandy loam and clay soil was increased from 20 to 80% of field capacity at 35°C, the half-lives were reduced from 9.0 to 5.7 and 11.2 to 4.6, days, respectively. The investigators concluded that the disappearance of metsulfuron-methyl in soil resulted from microbial degradation and chemical hydrolysis.
Stoffwechselwegen
In soils, under aerobic conditions, metsulfuron methyl is degraded by the cleavage of the sulfonylurea linkage, resulting in the formation of methyl 2- (aminosulfonyl)benzoate, 4-methoxy-6-methyl-2-amino- 1,3,5-triazine, and saccharin as major products. Under anaerobic conditons, free acid of metsulfuron methyl and the resulting O-demethylation product are identified. The formation of two ring-opening products at the triazine moiety is observed. Under acidic conditions, hydrolytic degradation products identified are involved in the soil degradation products. In plants, the specific metabolites are identified as the hydroxylation product of the phenyl ring of metsulfuron methyl and 4-methoxy-6-hydroxymethyl-2-amino-1,3,5- triazine. Mammalian metabolites are also included in the soil metabolites.
Versand/Shipping
UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
Inkompatibilitäten
Strong oxidizers. Stable in air to about 140 C. It is hydrolyzed in acid solutions.
Waste disposal
It is the responsibility of chemical waste generators to determine the toxicity and physical properties and of a discarded chemical and to properly identify its classification and certification as a hazardous waste and to determine the disposal method. United States Environmental Protection Agency guidelines for the classification determination are listed in 40 CFR Parts 261.3. In addition, waste generators must consult and follow all regional, national, state and local hazardous waste laws to ensure complete and accurate classification and disposal methods. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Offer surplus and nonrecyclable solutions to a licensed disposal company. Dissolve or mix the pesticide with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.

METSULFURON METHYL Upstream-Materialien And Downstream Produkte

METSULFURON METHYL Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

74223-64-6, METSULFURON METHYL Verwandte Suche:

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