Iodosulfuron methyl sodium

Bezeichnung:Iodosulfuron methyl sodium

CAS-Nr144550-36-7

Englisch Name:Iodosulfuron methyl sodium

CBNumberCB9498466

SummenformelC14H13IN5NaO6S

Molgewicht529.2

MOL-Datei144550-36-7.mol

Iodosulfuron methyl sodium physikalisch-chemischer Eigenschaften

Schmelzpunkt	152°
storage temp.	0-6°C
Löslichkeit	Solubility in organic solvents (g/l at 20 °C) Acetonitrile 52 Ethyl acetate 23 n‐Heptane 0.001 Methanol 12 2‐Propanol 4.4 Toluene 2.1
pka	Dissociation constant (pKa at 20 °C) 3.22 (Under strong acidic conditions – pH 2 – formation of iodosulfuron‐methyl)
Farbe	Off-White to Pale Beige
Wasserlöslichkeit	Solubility in water (g/l at 20 °C) 0.16 (pH 5) 25.0 (pH 7) 65.0 (pH 9).
CAS Datenbank	144550-36-7(CAS DataBase Reference)
EPA chemische Informationen	Iodosulfuron-methyl-sodium (144550-36-7)

Sicherheit

Kennzeichnung gefährlicher	N
R-Sätze:	50/53
S-Sätze:	60-61
RIDADR	UN 3077
WGK Germany	2
Toxizität	LD50 in rats (mg/kg): 2678 orally; >2000 dermally (Hacker)

Gefahreninformationscode (GHS)

Iodosulfuron methyl sodium 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.
Verwenden
Iodosulfuron Methyl Ester Sodium is used as a pesticide.
Landwirtschaftliche Anwendung
At a rate of 2.5–10 g a.i. ha−1, iodosulfuron‐methyl‐sodium (AE F115008) controls more than 50 different broadleaf weed species, including some very competitive weeds that cause a substantial reduction of cereal productivity, for example, G. aparine, M. chamomilla, S. media, Raphanus ssp., Cirsium arvense, and Lamium ssp. While the application of iodosulfuronmethyl‐ sodium at the lower end of the suggested use rate is usually sufficient for control of broadleaf weeds, a higher rate is needed for consistent grass weed control. Major grass weeds controlled with a 7.5–10 g a.i. ha−1 dose rate applied at the three‐leaf stage up to the end of tillering are Agrostis gigantea, A. spica‐venti, Lolium multiflorum, L. perenne, L. persicum, L. rigidum, Phalaris brachystachys, P. canariensis, P. paradoxa, P. annua, and P. trivialis.
When introduced in 1999, iodosulfuron‐methyl‐sodium was the first “safened” sulfonylurea herbicide available commercially and has been marketed by Bayer CropScience for use both in cereals and maize. A “safener,” such as mefenpyr‐ diethyl, is a chemical that, when applied to crop plants, reduces the injury caused by herbicides to an acceptable level. Ideally, a safener does not reduce activity against the target weeds. When a series of experiments was conducted to compare the behavior of iodosulfuron‐methyl‐sodium with and without mefenpyr‐diethyl as safener, the results suggested that the safener acted via a specific catalytic enhancement of herbicide degradation in cereals, but not in target weeds such as wild oat.
In cereals, iodosulfuron‐methyl‐sodium is available commercially under the trade name “Hussar” as a straight product in a 1 : 3 ratio with mefenpyr‐diethyl as safener. The compound is also sold in various combinations with other mixing partners, such as “Hussar® OF” (+ fenoxaprop‐p‐ethyl + mefenpyr‐diethyl), “Sekator®/Chekker®” (+ amidosulfuron + mefenpyr‐diethyl), “Cossack®” (+ mesosulfuron + mefenpyrdiethyl), and “Atlantis®” (+ mesosulfuron + mefenpyr‐diethyl).

Iodosulfuron methyl sodium Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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