Triclopyr Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
WEISSEODER FARBLOSE FLOCKIGE KRISTALLE
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen und unter Einwirkung von UV-Licht. Es entstehen giftige und ätzende Rauche mit
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2006).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols, über die Haut und durch Verschlucken.
INHALATIONSGEFAHREN
Eine belästigende Partikelkonzentration in der Luft kann schnell erreicht werden.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Reizt möglicherweise mechanisch.
LECKAGE
Persönliche Schutzausrüstung: Atemschutzgerät, P1-Filter für inerte Partikel. Verschüttetes Material in Behältern sammeln. Reste mit viel Wasser wegspülen.
R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
White to Off-White Solid
Verwenden
Triclopyr is a selective post-emergence herbicide.
Definition
ChEBI: A monocarboxylic acid that is (pyridin-2-yloxy)acetic acid substituted by chloro groups at positions 3, 5 and 6. It is an agrochemical used as a herbicide.
Landwirtschaftliche Anwendung
Herbicide: Triclopry is a systemic herbicide used on rice, range
land and pasture, rights-of-way, forestry and grasslands,
including home lawns, for control of broadleaf weeds and
woody plants. Triclopry is usually available as a triclopyr
butoxyethyl ester (BEE) or as a triclopry triethylamine
salt (TEA). Registered for use in the U.S. Some products
may be classified as Restricted Use Pesticides (RUP).
Registered for use in EU countries
.
U.S. Maximum Allowable Residue Levels for Triclopyr
and its metabolites 3,5,6,-trichloro-2-pyridinol and
2-methoxy-3,5,6-trichloropyridine [40 CFR 180.417
(a)(1)]: for the combined residues of the herbicide in
or on the following raw agricultural commodities: fish
3.0 ppm; grass, forage 500 ppm; grass, forage, hay
500 ppm;shellfish3.5 ppm.[40 CFR 180.417 (a)(2)]:
in or on the following agricultural commodities: egg
0.05 ppm; meat, fat, and meat byproducts, except kidney
and liver, of cattle, goat, hog, horse and sheep 0.05 ppm;
meat, fat, and meat byproducts, except kidney, of poultry
0.1 ppm; milk 0.01 ppm; liver and kidney of cattle, goat,
hog, horse and sheep 0.5 ppm; rice, grain 0.3 ppm; rice,
straw10.0 ppm.
Handelsname
[Note: See the following record, Triclopyr,
triethylamine salt, for trade names containing the salt of
triclopry] ACCESS®; CROSSBOW®, (triclopyr + 2,4-D
ester); ET®; GARLON®; GRAZON® Triclopyr;
PATHFINDER®; REDEEM®; RELY®; REMEDY®;
RIVERDALE TAHOE® Nufarm (Australia); TURFLON®
Sicherheitsprofil
Moderately toxic by ingestion. Anexperimental teratogen. Experimental reproductiveeffects. Used as an herbicide. When heated todecomposition it emits toxic fumes of Clí and NOx.
Environmental Fate
Soil. In soil, triclopyr degraded to 3,5,6-trichloro-2-pyridinol and 2-methoxy-3,5,6-
trichloropyridine (Norris et al., 1987). The major route of dissipation from soil is likely
due to microbial degradation (Newton et al., 1990).
Fifty-four days after triclopyr was applied to soil at a rate of 5.6 kg/ha, the majority
(65%) remained in the top 10 cm of soil (Lee et al., 1986a).
Ashton and Monaco (1991) reported triclopyr had an average half-life of 46 days and
is in?uenced by soil type and climatic conditions.
Plant. Lewer and Owen (1989) found 3,5,6-trichloro-2-pyridinol as the major metab-
olite in plants. Cultured soybean cells metabolized triclopyr to dimethyl triclopyr-aspartate
and dimethyl triclopyr-glutamate which can be rehydrolyzed to form the parent compound.
At an application rate of 3.4 kg/ha, the dissipation half-life was 3.7 days. At an
application rate of 3.3 kg/ka, the dissipation half-lives of triclopyr in brown, browse and
litter samples were 73.5, 202.3 and 31 days, respectively (Norris et al., 1987).
Stoffwechselwegen
After 7 days in a soybean cell suspension culture, the
major metabolites of trichlopyr are formed and
identified as the aspartate (major) and glutamate
(minor) amide conjugates.
Stoffwechsel
The average half-life of triclopyr
in soil is 46 days. Because triclopyr is sensitive to light,
the length of time that it remains on the surface may
moderate its persistence. Adsorption to soil is limited and
is governed by the anion exchange capacity. Insignificant
amounts are lost via volatilization. The propensity of
triclopyr to translocate in the environment with soil water,
is unknown.
Triclopyr Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
