2,2-ジクロロプロピオン酸 ナトリウム 化学特性,用途語,生産方法
外観
白色, 結晶性粉末～粉末
溶解性
水900g/kg(25℃)。エタノール185, メタノール179,ア セトン1.4, ベンゼン0.02, ジエチルエーテル0.16(全てg/kg 25℃)。水及びエタノールに溶けやすく、アセトンに溶けにくい。
使用上の注意
アルゴン封入
使用
2,2-Dichloropropionic acid sodium salt is a selective, systemic herbicide used to control perennial and annual grasses on noncrop land, fruits, vegetables and some aquatic weeds.
安全性プロファイル
Moderately toxic by
ingestion. Mutation data reported. When
heated to decomposition it emits toxic
fumes of Na2O and Cl-.
環境運命予測
Soil. Undergoes dechlorination and the liberation of carbon dioxide in soil. The residual
activity is limited to approximately 3–4 months (Hartley and Kidd, 1987). The average
half-life for dalapon-sodium in soil incubated in the laboratory under aerobic conditions
was 15 days (Namdeo, 1972)
Photolytic. Dalapon (free acid) is subject to photodegradation. When an aqueous
solution (0.25 M) was irradiated with UV light at 253.7 nm at 49°C, 70% degraded in 7
hours. Pyruvic acid is formed which is subsequently decarboxylated to acetaldehy
Chemical/Physical. Slowly reacts with moisture at room temperature forming pyruvic
acid (Frank and Demint, 1969; Kenaga, 1974), hydrochloric acid and sodium chloride
(Kenaga, 1974; Wolfe et al., 1990). The reported hydrolysis half-life of dalapon
Products reported from the combustion of the free acid (dalapon) at 900°C include
carbon monoxide, carbon dioxide, chlorine and hydrochloric acid (Kennedy et al., 1972a)
2,2-ジクロロプロピオン酸 ナトリウム 上流と下流の製品情報
原材料
準備製品