4,4'-ジクロロベンジル酸エチル 化学特性,用途語,生産方法
外観
白色～わずかにうすい褐色, 結晶～粉末
溶解性
水10mg/l(20℃)。アセトン, ジクロロメタン, メタノール, トルエン各1,000, n-オクタノール700, ヘキサン600(全てg/kg 20℃)。メタノール及びアセトンに極めて溶けやすく、水にほとんど溶けない。
農薬用途
ダニ駆除剤
説明
Chlorobenzilate is an organochlorine pesticide belonging to
the same class as dichlorodiphenyltrichloroethane (DDT).
It was originally developed by Ciba–Geigy and introduced
in 1952.
化学的特性
Ethyl 4,40
-dichlorobenzilate is a yellow solid
when pure. The technical product is a brownish liquid.
使用
The primary use of chlorobenzilate is as an acaricide for mite
control on citrus crops and in beehives. It has a narrow
insecticidal action, killing only mites and ticks. Historically,
chlorobenzilate was used as a synergist for DDT. Although
now banned for use in the United States and Europe, it is
believed to be used on crops other than citrus in other
countries.
一般的な説明
Viscous yellow liquid or pale yellow crystals. Light brown crystalline solid.
空気と水の反応
Insoluble in water.
反応プロフィール
CHLOROBENZILATE is hydrolyzed by alkalis and strong acids. Incompatible with lime .
健康ハザード
Moderately toxic by oral route; toxic symptoms similar to DDT and Perthane; ingestionof large dose can produce nausea, vomiting,tremor and convulsions; skin or eye contactcan cause irritation; application of 25 mgproduced moderate irritation of eye inrabbits; adequate evidence of carcinogenicityin experimental animals; produced tumors inrats and mice; evidence of carcinogenicity inhumans remains unknown.
LD50 oral (rat): 700 mg/kg
LD50 oral (mouse): 729 mg/kg.
火災危険
Flash point data for CHLOROBENZILATE are not available; however, CHLOROBENZILATE is probably combustible.
安全性プロファイル
Suspected carcinogen
with experimental carcinogenic,
neoplastigenic, and tumorigenic data.
Moderately toxic by ingestion. A skin and
eye irritant. A pesticide. When heated to
decomposition it emits toxic fumes of Cl-.
職業ばく露
It is a buffer in many chemical intermediates; an organochlorine miticide; to kill mites, ticks,
and other insects; as a synergist for DDT.
Incompatibilities: Strong acids, strong bases; lime.
環境運命予測
Biological. Rhodotorula gracilis, a yeast isolated from an insecticide-treated soil,
degraded chlorobenzilate in a basal medium supplemented by sucrose. Metabolites identified by this decarboxylation process were 4,4′-dichlorobenzilic acid, 4,4′-dichlorobenzophenone and carbon dioxide (Miyazaki et al., 1969, 1970).
Soil. Though no products were identified, the half-life of chlorobenzilate in two fine
sandy soils was estimated to be 1.5–5 weeks (Wheeler, 1973).
Photolytic. Chlorobenzilate should not undergo direct photolysis since it does not
absorb UV light at wavelengths greater than 290 nm (Gore et al., 1971).
輸送方法
UN2996 Organochlorine pesticides, liquid, toxic,
Hazard Class: 6.1; Labels: 6.1-Poisonous materials.UN2761
Organochlorine pesticides, solid, toxic, Hazard Class: 6.1;
Labels: 6.1-Poisonous materials.
廃棄物の処理
Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant
(≥100 kg/mo) must conform to EPA regulations governing
storage, transportation, treatment, and waste disposal. 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.
4,4'-ジクロロベンジル酸エチル 上流と下流の製品情報
原材料
準備製品