2-(2,4,5-トリクロロフェノキシ)酢酸 化学特性,用途語,生産方法
外観
白色, 結晶〜結晶性粉末
溶解性
水に不溶, DMSO : ≧100mg/ml (20度), 95%エタノール : ≧100mg/ml, メタノール : 496g/l, アセトン : ≧100mg/ml, トルエン : 7.32g/l。水150mg/l(25℃)。ジエチルエーテル,エタノール, メタノール, トルエン＞50, ヘプタン400(全てmg/l )。N,N -ジメチルホルムアミドに溶ける。
用途
試薬
農薬用途
除草剤
化学的特性
white to light tan odourless solid
物理的性質
Colorless to pale brown, odorless crystals. Odor threshold from water is 2.92 mg/kg (quoted,
Keith and Walters, 1992). Metallic taste.
使用
It is suitable for plant cell culture tested. Post-emergence herbicide.
定義
ChEBI: A chlorophenoxyacetic acid that is phenoxyacetic acid in which the ring hydrogens at postions 2, 4 and 5 are substituted by chlorines.
一般的な説明
Light tan solid (melting point 153°C). Insoluble in water. Contact may irritate the skin.
空気と水の反応
Insoluble in water.
反応プロフィール
2,4,5-Trichlorophenoxyacetic acid is a weak acid. Reacts with organic and inorganic bases to form water-soluble salts and with alcohols to form esters. Incompatible with strong oxidizing agents and strong bases. Can corrode metals, especially if moist. May harm painted surfaces .
健康ハザード
Overexposure to dust by inhalation or ingestion may cause fatigue, nausea, vomiting, lowered blood pressure, convulsions, coma. Dust may irritate eyes and skin.
火災危険
Special Hazards of Combustion Products: Toxic hydrogen chloride and phosgene gases may be formed.
職業ばく露
Those engaged in the manufacture, formulation, and application of this herbicide used to control woody and herbaceous weeds. The EPA has issued a rebuttable presumption against registration of 2,4,5-T for pesticide uses, however. The Viet Nam war era defoliant, Agent Orange, was a mixture of 2,4,5-T and 2,4-D.
発がん性
2,4,5-T was not mutagenic in bacterial
assays, and it did not induce aneuploidy or
somatic mutation in vitro. In vivo it did not
cause micronuclei in mice or dominant lethal
mutations in mice or rats.
輸送方法
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3345 Phenoxyacetic acid derivative pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
純化方法
Crystallise this herbicide from *benzene. [Beilstein 6 III 721.] (CANCER SUSPECT)
不和合性
The aqueous solution is a weak acid. Incompatible with sulfuric acid, bases, ammonia, aliphatic amines; alkanolamines, isocyanates, alkylene oxides; epichlorohydrin; strong oxidizers, such as chlorine, bromine, fluorine, and strong bases.
廃棄物の処理
Two disposal procedures have been discussed for 2,4,5-T: (1) Mix with excesssodium carbonate, add water and let stand for 24 hours before flushing down the drain with excess water; and (2) pour onto vermiculite and incinerate with wood, paper, and waste alcohol. 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. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
2-(2,4,5-トリクロロフェノキシ)酢酸 上流と下流の製品情報
原材料
準備製品