CHLOROXURON C화학적 특성, 용도, 생산
화학적 성질
Chloroxuron is a combustible, colorless crystalline solid
용도
Herbicide.
일반 설명
Odorless colorless powder or white crystals. Used as a selective pre- and early post-emergence herbicide in soybeans, strawberries, various vegetable crops and ornamentals. Root- and foliage-absorbed herbicide selective in leek, celery, onion, carrot and strawberry.
반응 프로필
Fire may produce irritating or poisonous gases. When heated to decomposition CHLOROXURON emits very toxic fumes of chlorides and nitrogen oxides. [EPA, 1998].
건강위험
This is highly toxic by ingestion. Under certain conditions, CHLOROXURON will form carcinogenic dimethylnitrosamine.
화재위험
(Non-Specific -- Pesticide, Solid, n.o.s.) Fire may produce irritating or poisonous gases. When heated to decomposition CHLOROXURON emits very toxic fumes of chlorides and nitrogen oxides.
잠재적 노출
A potential danger to those involved in the manufacture, formulation, and application of chloroxuron for use as a selective pre- and early postemergency herbicide in soybeans, strawberries; various vegetable crops, and ornamentals. It is a root- and foliageabsorbed herbicide selective in leek, celery, onion, carrot, and strawberry.
환경귀착
Soil. Hartley and Kidd (1987) reported 4-(4-chlorophenoxy)aniline as a soil metabolite.
Chloroxuron was degraded by microorganisms in humus soil and a sandy loam to form
N′-(4-chlorophenoxy)phenyl-N-methylurea, N′-(4-chloro-phenoxy)phenylurea and (4-
chlorophenoxy)aniline and two minor unidentified compounds (Geissbühler et al., 1963a).
Residual activity in soil is limited to approximately 4 months (Hartley and Kidd, 1987).
Plant. In plants, chloroxuron is degraded to monomethylated and demethylated derivatives followed by decarboxylation forming 4-(4-chlorophenoxy)aniline (Humburg et al.,
1989)
Photolytic. The UV irradiation of an aqueous solution of chloroxuron for 13 hours
resulted in 90% decomposition of the herbicide. Products identified (% yield) were mono-
(2.2%) and didemethylated (4.2%) products and carbon dioxide (64%) (Plimmer
Chemical/Physical. Hydrolyzes in strong acids and bases forming 4-(4-chloro-phenoxy)aniline (Hartley and Kidd, 1987). Emits toxic fumes of nitrogen oxides, cyanides
and chlorine when heated to decomposition (Sax and Lewis, 1987)
운송 방법
UN2767 Phenylurea pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials
비 호환성
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, epoxides.
폐기물 처리
Incinerate in a unit with effluent gas scrubbing. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
CHLOROXURON 준비 용품 및 원자재
원자재
준비 용품
