2,4-디클로로페녹시에타노익 엑시드
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2,4-디클로로페녹시에타노익 엑시드 속성
- 녹는점
- 136-140 °C (lit.)
- 끓는 점
- 160 °C (0.4 mmHg)
- 밀도
- 1.563
- 증기압
- 0.4 mm Hg ( 160 °C)
- 굴절률
- 1.5000 (estimate)
- 인화점
- 160°C/0.4mm
- 저장 조건
- 2-8°C
- 용해도
- 유기용매(에탄올, 아세톤, 디옥산)에 용해됨
- 산도 계수 (pKa)
- pK1:2.64 (25°C)
- 물리적 상태
- 수정 같은
- 색상
- 회백색부터 황갈색까지
- pH 범위
- Acidic
- Odor Threshold
- 3.13 ppm
- 수용성
- 약간 용해됨. 보관 시 분해됨. 0.0890g/100mL
- Merck
- 14,2796
- BRN
- 1214242
- Henry's Law Constant
- 6.72 and 0.84 x 10-5 atm?m3/mol were reported at pH values of 1 and 7, respectively (wetted-wall column, Rice et al., 1997a)
- 노출 한도
- NIOSH REL: TWA 10 mg/m3, IDLH 100 mg/m3; OSHA PEL: TWA 10 mg/m3; ACGIH TLV: TWA 10 mg/m3.
- 안정성
- 안정적이지만 습기에 민감하고 빛에 민감할 수도 있습니다. 강한 산화제와 호환되지 않으며 많은 금속을 부식시킵니다. 물에서 분해됩니다.
- LogP
- 2.810
- CAS 데이터베이스
- 94-75-7(CAS DataBase Reference)
- IARC
- 2B (Vol. 113) 2018
- EPA
- 2,4-D (94-75-7)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn,Xi,T,F | ||
---|---|---|---|
위험 카페고리 넘버 | 22-37-41-43-52/53-39/23/24/25-23/24/25-36/37/38-11-36-20/21/22-67-66 | ||
안전지침서 | 24/25-26-36/37/39-46-61-2-45-36/37-27-16-7-9 | ||
유엔번호(UN No.) | UN 3077 9/PG 3 | ||
WGK 독일 | 2 | ||
RTECS 번호 | AG6825000 | ||
자연 발화 온도 | > 180 °C | ||
TSCA | Yes | ||
위험 등급 | 6.1 | ||
포장분류 | III | ||
HS 번호 | 29189090 | ||
유해 물질 데이터 | 94-75-7(Hazardous Substances Data) | ||
독성 | LD50 (oral): rat [free] 375 mg/kg, [-Na] 666-805 mg/kg. | ||
IDLA | 100 mg/m3 | ||
기존화학 물질 | KE-05-0002 | ||
유해화학물질 필터링 | 97-1-413 | ||
함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 2,4-디 및 이를 25% 이상 함유한 혼합물 |
2,4-디클로로페녹시에타노익 엑시드 C화학적 특성, 용도, 생산
개요
2,4-D free acids, esters, amines, and salts are formulated in water suspensions or solutions, or in various organic solvents, for application as systemic herbicides that are used postemergence for selective control of broadleaf weeds.화학적 성질
2,4-Dichlorophenoxyacetic acid is a white to yellow crystalline powder with a slight phenolic odor. It is used as a herbicide for the selective control of broad-leaved weeds in agriculture, and for the control of woody plants along roadsides, railways, and utilities rights of way. It is one of the most widely used herbicides in the world and is commonly used on crops such as wheat and corn, and on pasture and rangelands. It is also used to control broad-leaved aquatic weeds.물리적 성질
Odorless, white to pale yellow, powder or prismatic crystals. Impure formulations containing 2,4- D as the main component may have a phenolic odor.용도
2,4-Dichlorophenoxyacetic acid is often formulated as various forms of inorganic salts or esters. 2,4-D was first registered as a herbicide in 1948, and its annual production was estimated at 52–67 million lb in 1990. The primary use of 2,4-D is for control of broadleaf weeds, and as such, it is used for a large spectrum of applications in agriculture, forestry, and lawn care. 2,4-D also is used along right-ofways, on rangelands, parks, and in aquatic environments.정의
ChEBI: A chlorophenoxyacetic acid that is phenoxyacetic acid in which the ring hydrogens at postions 2 and 4 are substituted by chlorines.제조 방법
Two processes are currently used for the production of 2,4-Dichlorophenoxyacetic acid. In the first process, phenol is condensed with chloroacetic acid forming phenoxyacetic acid, which is subsequently chlorinated. In the second process, phenol is chlorinated, generating 2,4-dichlorophenol, which is subsequently condensed with chloroacetic acid. The butyl ester derivative of 2,4-D is produced by the esterification of the acid with butanol in the presence of a ferric chloride catalyst and chlorine (Liu et al., 2013).Preparation of 2,4-Dichlorophenoxyacetic acid
일반 설명
Odorless white to tan solid. Sinks in water.공기와 물의 반응
Decomposes rapidly in water.반응 프로필
2,4-Dichlorophenoxyacetic acid is incompatible with strong oxidizers. 2,4-Dichlorophenoxyacetic acid is corrosive to metals.화재위험
Special Hazards of Combustion Products: Toxic and irritating hydrogen chloride or phosgene gases may form.농업용
Herbicide, Plant growth regulator: 2,4-Dichlorophenoxyacetic acid was introduced as a plant growth-regulator in 1942. 2, 4-D is the most widely used herbicide in the United States and its used in more than 100 countries. It is registered in the United States as a herbicide for control of broadleaf plants and as a plant growth-regulator. There are many forms or derivatives of 2,4-D including esters, amines, and salts. It is used in cultivated agriculture, in pasture and rangeland applications, forest management, home, garden, and to control aquatic vegetation. It may be found in emulsion form, in aqueous solutions (salts), and as a dry compound. The product Agent Orange, made by Monsanto Chemical and used extensively throughout Vietnam, was about 50% 2,4-D. However, the controversies associated with the use of Agent Orange involved a contaminant (dioxin) in the 2,4,5-T component of the defoliant. In 1964 Agent Orange replaced Agent Purple a mixture of the n-butyl esters of 2,4-D and 2,4,5-T plus the isobutyl ester of 2,4,5-T.상품명
Hedonal; 2,4-D; Estone; Agrotect; Fernesta; Fernimine; Netagrone; Tributon; Vergemaster; Amoxone; Dicopur; Dormone; Ipaner; Moxone; Phenox; Pielik; Rhodia; Weedone; B-Selektonon.잠재적 노출
2,4-Dichlorophenoxyacetic acid, was introduced as a plant growth-regulator in 1942. It is registered in the United States as a herbicide for control of broadleaf plants and as a plant growth-regulator. Thus, workers engaged in manufacture, formulation or application are affected, as may be citizens in areas of application. The Vietnam war era defoliant, Agent Orange, was a mixture of 2,4-D and 2,4,5-T.Carcinogenicity
Collectively, the epidemiological and toxicological data show that 2,4-D is not likely to be carcinogenic in humans unless it is acting through an unknown mechanism that is not evident in animals. According to the calculated RfD and data from exposure studies, the general public should not experience toxic effects from exposure to 2,4-D. Because workers involved in the manufacture or application of 2,4-D may be exposed to levels above the RfD, appropriate protective equipment should be used.환경귀착
2,4-Dichlorophenoxyacetic acid (2,4-d) is rapidly degraded by microbes in soil and water, with a half-life of 3-22 days in different soils. 2,4-d is weakly sorbed by soil with sorption generally increasing with increasing soil organic carbon content. Leaching to groundwater is most likely in coarse-grained sandy soils with low organic content or with very basic soils. In general, little runoff occurs with 2,4-d or its amine salts.신진 대사
Chemical. 2,4-D and its salts are very stable, but esters are sensitive to hydrolysis under acidic and basic conditions. In the field, 2,4-D losses due to photodegradation are minor. 2,4-D is a strong acid and forms water-soluble salts with amines and alkali metals. A sequestering agent is included in 2,4-D formulations to prevent precipitation of Ca2+ andMg2+ salts in hard water.Plant. 2,4-D detoxification occurs relatively slowly in plants. There are many possible routes of detoxification, and these are usually grouped into those reactions that are consistent with phase I metabolism and those that are consistent with phase II metabolism. Phase I reactions that have been observed to occur with 2,4-D include dechlorination, decarboxylation, hydroxylation, and dealkylation. Phase II reactions that have been observed to occur with 2,4-D include conjugation of the side chain to amino acids, particularly glutamate and aspartate, and glucose conjugation following hydroxylation of the phenoxy ring. Selectivity differences among broadleaf species may be accounted for by differences in the rates of 2,4-D detoxification.
Soil. Microbial degradation in the soil involves cleavage of the acid side chain, decarboxylation, hydroxylation, and ring opening.
운송 방법
UN3345 Phenoxyacetic acid derivative pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. A DOT regulated marine pollutant.Purification Methods
Crystallise 2,4-D from MeOH. It is a plant growth substance, a herbicide and is TOXIC. [Beilstein 6 IV 908.]비 호환성
A weak acid, incompatible with bases. Decomposes in sunlight or heat, forming hydrogen chloride and phosgene. Contact with strong oxidizers may cause fire and explosions.폐기물 처리
Incineration of phenoxys is effective in 1 second @ 982 C, using a straight combustion process or @ 482℃ using catalytic combustion. Over 99% decomposition was reported when small amounts of 2,4-D were burned in a polyethylene bag. See "References" for additional detail. In accordance with 40CFR165, follow (31); recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by follow- ing (100) Package (2) 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.2,4-디클로로페녹시에타노익 엑시드 준비 용품 및 원자재
원자재
준비 용품
2,4-디클로로페녹시에타노익 엑시드 공급 업체
글로벌( 541)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12456 | 58 |
Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 +86-17331933971 |
deasea125996@gmail.com | China | 2503 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 7845 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15928 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21691 | 55 |
career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 |
admin@nexconn.com | China | 10248 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8823 | 58 |