2-(2,4-ジクロロフェノキシ)プロピオン酸 化学特性,用途語,生産方法
外観
白色〜わずかにうすい黄褐色, 結晶〜粉末又は塊
溶解性
アセトンに溶けやすく、水に極めて溶けにくい。
用途
農薬(除草剤、植物成長調整剤)
用途
ジクロルプロップ試験用標準品。
農薬用途
除草剤
化学的特性
2,4-DP is a combustible, colorless to yellowish
to tan crystalline solid with a faint phenolic odor
定義
ChEBI: An aromatic ether that is 2-hydroxypropanoic acid in which the hydroxy group at position 2 has been converted to its 2,4-dichlorophenyl ether.
一般的な説明
Yellowish to colorless solid. Soluble in organic solvents. Used as an herbicide.
反応プロフィール
Dichlorprop is an organic acid. Neutralizes bases in exothermic reactions.
安全性プロファイル
Suspected carcinogen.
Poison by ingestion. Moderately toxic by
skin contact. An experimental teratogen.
Other experimental reproductive effects.
Mutation data reported. A fumigant. When
heated to decomposition it emits toxic
fumes of Cl-.
職業ばく露
A phenoxy herbicide
環境運命予測
The average field half-life is
10 days. Microbial degradation and plant uptake account
for the short half-life of dichlorprop. Losses due to leaching,
photodegradation, and volatilization are minimal.
代謝
Chemical. Dichlorprop and its salts are very stable, but
esters readily hydrolyze under acidic and basic conditions.
Plant. Degradation of the side chain of dichlorprop to
form 2,4-dichlorophenol is most common. Dichlorprop may
be conjugated to form glucosides, diglucosides, and to a
limited extent triglucosides.
Soil. The degradation pathway of dichlorprop is similar
in plants and soils, forming 2,4-dichlorophenol. Evidence
indicates that some microbial communities preferentially
degrade the R-enantiomer.
輸送方法
UN3345 Phenoxyacetic acid derivative pesticide,
solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous
materials
純化方法
Crystallise 2,4-DP from MeOH. It is a plant growth substance, a herbicide and is TOXIC. The R(+)-and S(-)-enantiomers have m 124o (from *C6H6) and [] D ±35.2o (c 1, Me2CO). [Beilstein 6 H 189, 6 III 708, 6 IV 922-923.]
不和合性
Dust may form explosive mixture with
air. Contact with oxidizers may cause a fire and explosion
hazard. The aqueous solution is a weak acid. Attacks many
metals in presence of moisture. Compounds of the carboxyl
group react with all bases, both inorganic and organic (i.e.,
amines) releasing substantial heat, water and a salt that
may be harmful. Incompatible with arsenic compounds
(releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides
(releasing heat, toxic and possibly flammable gases),
thiosulfates and dithionites (releasing hydrogen sulfate and
oxides of sulfur).
廃棄物の処理
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.
2-(2,4-ジクロロフェノキシ)プロピオン酸 上流と下流の製品情報
原材料
準備製品