S,S,S-트리부틸 삼티오인산

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H301：삼키면 유독함

  H310：피부와 접촉하면 치명적임

  H410：장기적 영향에 의해 수생생물에 매우 유독함

• 예방조치문구

  P273：환경으로 배출하지 마시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P301+P310：삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.

  P302+P350：피부에 묻은 경우,비눗물로 부드럽게 씻기

  P310：즉시 의료기관(의사)의 진찰을 받으시오. 삼켰다면 즉시 의료기관(의사)의 도움을 받으시오.

  P501：...에 내용물 / 용기를 폐기 하시오.

S,S,S-트리부틸 삼티오인산 화학적 특성, 용도, 생산

• 개요

  DEF is a cholinesterase-inhibiting organophosphorus pesticide compound used as a cotton defoliant that was registered in 1960.DEF is a colorless to pale-yellow transparent liquid with a skunk-like odor.It is completely miscible with n-hexane, dichloromethane, toluene, and 2-propanol and has an octanol–water partition coefficient of 3.31×10⁵ at 25°C. DEF toxicity is primarily attributed to inhibition of various esterases, including acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), neuropathic target esterase (NTE), and carboxylesterase, resulting in increased accumulation of endogenous acetylcholine (ACh) in cholinergic nerve terminals and related effector organs.

• 화학적 성질

  Tribufos is a colorless to yellow liquid. Tribufos is relatively stable to acids and heat and is hydrolyzed slowly under alkaline conditions. Tribufos has a mercaptan or skunk-like odor. Tribufos has a mercaptan or skunk-like odor. Practically insoluble in water (2.3×10^-4 g/ 100 mL); completely miscible in dichloromethane, n-hexane, 2-propanol, toluene.

• 용도

  1,2,4-Tributylphosphorotrithioate is a defoliant for cotton.

• 일반 설명

  Colorless to pale yellow liquid with mercaptan-like odor. Insoluble in water; soluble in aliphatic, aromatic, and chlorinated hydrocarbons.. Used as a growth regulator.

• 공기와 물의 반응

  Insoluble in water. Hydrolyzed slowly by alkaline conditions.

• 반응 프로필

  An organophosphate derivative. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

• 위험도

  Cholinesterase inhibitor.

• 농업용

  Herbicide, Defoliant, Plant growth regulator: Tribufos is an organophosphate defoliant used for cotton crops. It is specifically used to defoliate cotton in preparation for machine harvesting. It was first registered in the United States in 1961. Not approved for use in EU countries . Registered for use in the U.S.

• 상품명

  B-1776®; BUTIFOS®; BUTIPHOS®[C]; CHEMAGRO® 1776; CHEMAGRO® B-1776; DE- GREEN®; DEF®; DEF DEFOLIANT®; DELEAFDEFOLIANT®; EASY OFF®-D; E-Z-OFF® D; FOLEX® 6EC FOS-FALL® A; ORTHO® phosphate defoliant

• Safety Profile

  A poison by ingestion, skin contact, and intraperitoneal routes. Experimental reproductive effects. Animal experiments show an anti-cholinesterase effect. When heated to decomposition it emits toxic fumes of PO, and SO,. See also PARATHION, PHOSPHATES, ESTERS, and SULFATES.

• Carcinogenicity

  No carcinogenic effects occurred when rats were given diets with 0, 4, 40, or 320 ppm tribufos (equivalent to 0.0, 0.2, 1.8, and 16.8 mg/kg/day in males and 0.0, 0.2, 2.3, and 21.1 mg/kg/day in females, respectively) for 2 years .
  In a carcinogenicity study, mice were fed diets containing tribufos at doses of 0, 10, 50, or 250 ppm (equivalent to 0.0, 1.64, 8.28, or 48.02 mg/kg/day in males and 0.0, 2.08, 11.14, or 63.4 mg/kg/day in females) for 90 weeks . Carcinogenic effects were evident at 250 ppm (48.02 mg/kg/day in males and 63.4 mg/kg/day in females). Males exhibited a statistically significant increase in hemangiosarcomas and adenocarcinomas of the small intestines and females exhibited a statistically significant increase in alveolar/bronchiolar adenomas.

• 환경귀착

  Soil. Hydrolyzes in soil to ethyl mercaptan, carbon dioxide and diisobutylamine (Hartley and Kidd, 1987). Butylate is probably subject to degradation of soil microorganisms. It was reported that butylate may degrade via hydrolysis of the ester linkage forming the corresponding mercaptan (ethyl mercaptan), alkylamine (diisobutylamine) and carbon dioxide. Transthiolation and oxidation of the mercaptan forms the alcohol which may further oxidize to afford a metabolic pool (Kaufman, 1967). Somasundaram and Coats (1991) reported butylate in soils is oxidized to the corresponding sulfoxide. The reported half-life in soil is approximately 1.5–10 weeks (Worthing and Hance, 1991). The reported half-life of butylate in a loam soil at 21–27°C was 3 weeks (Humburg et al., 1989). Residual activity in soil is limited to approximately 4 months (Hartley and Kidd, 1987).
  Groundwater. According to the U.S. EPA (1986) butylate has a high potential to leach to groundwater.
  Plant. In plants, butylate is metabolized to carbon dioxide, diisobutylamine, fatty acids, conjugates of amines and other compounds (Hartley and Kidd, 1987; Humburg et al., 1989).

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