1,2,3-trichlorobenzene appears as a white solid with a sharp chlorobenzene odor. Insoluble in water and denser than water. Hence sinks in water. Melting point 63-64°C (145-147°F).
颜色/状态:
Colorless liquid
蒸汽密度:
6.2 (NTP, 1992) (Relative to Air)
蒸汽压力:
0.21 mm Hg at 25 °C
亨利常数:
0.00 atm-m3/mole
分解:
When heated to decomp, it emits toxic fumes of /hydrogen chloride/. /2,3,6-trichlorobenzoic acid/
粘度:
1.68 mPa.s at 50 °C
汽化热:
291 J/g at 100 °C; 271.7 J/g at 150 °C; 251.6 J/g at 200 °C
1,2,3-trichlorobenzene is metabolized to n-acetyl-s-(2,3,4-trichlorophenyl)-l-cysteine, 2,3,4-trichlorophenol, & 3,4,5-trichlorophenol in rabbits. /from table/
In metabolic studies with rabbits using each of the 3 isomeric trichlorobenzenes at 0.5 g/kg, 1,2,3-trichlorobenzene was the one most rapidly metabolized ... in 5 days, 62% ... underwent glucuronic conjugation. The major metabolite was 2,3,4-trichlorophenol; small amt of 3,4,5-trichlorophenol, 3,4,5-trichlorocatechol, & mercapturic acid were ... detected.
Trichlorobenzene is absorbed via oral, inhalation, and dermal routes. It is believed to be metabolized via cytochrome p-450 enzymes into metabolites that include phenols, mercapturic acid, and catechols.(T38)
Trichlorobenzene may uncouple mitochondrial oxidative phosphorylation, inducing potassium ion release and inhibiting respiratory control. It's metabolites may covalently bind to cellular proteins and alkylate DNA. (A154, A155)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
致癌物分类
对人类不具有致癌性(未被国际癌症研究机构IARC列名)。
No indication of carcinogenicity to humans (not listed by IARC).
来源:Toxin and Toxin Target Database (T3DB)
毒理性
健康影响
高浓度的三氯苯可能会损害肝脏、肾脏和甲状腺。
High levels of trichlorobenzene may damage the liver, kidney, and thyroid. (A153)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
暴露途径
该物质可以通过吸入其气溶胶和通过吞食被吸收进人体。
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
暴露途径
口服 (T38);吸入 (T38);皮肤给药 (T38)
Oral (T38) ; inhalation (T38) ; dermal (T38)
来源:Toxin and Toxin Target Database (T3DB)
吸收、分配和排泄
兔子口服1,2,3-三氯苯五天后,78%的给药量以单体酚的形式被排出。
... Five days after the oral administration of 1,2,3-trichlorobenzene to rabbits, 78% ... of the administered dose was excreted as monophenols.
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
三氯苯的所有三种同分异构体都被胃肠道、完整皮肤和肺吸收了。
All three isomers of trichlorobenzene were absorbed from the gastrointestinal tract, intact skin, and lung.
The tissue distribution and elimination of 1,2,3-trichlorobenzene, 1,2,4-trichlorobenzene, and 1,3,5-trichlorobenzene were examined in male Sprague Dawley rats. Fasted animals were given single doses of 10 mg/kg of the (14)C labeled isomers by gavage. Serial sacrifices were performed at 0.5, 1, and 24 hr and 1, 2, 7, 14, 28, and 56 days post administration. Radioassays utilized the liver, kidneys, spleen, brain, pancreas, lung, heart, thigh muscle, skin, perirenal fat, testes, bladder, adrenals, epididymis, seminal vesicles, prostate, gastrointestinal tract, blood, and salivary glands. The data for each tissue was fitted to a linear compartmental pharmacokinetic model. The amount of (14)C excreted in urine and feces was determined daily for 1,2,3-trichlorobenzene and 1,3,5-trichlorobenzene isomers. Radioactivity from the labeled isomers appeared in the blood and tissues within 30 min of administration, peaked at approximately 4 hr, and slowly declined to background levels. Radioactivity attributed to 1,2,4-trichlorobenzene dropped to background levels after 28 days. The bladder, kidney, fat, skin, liver, and adrenals showed high 1,2,4-trichlorobenzene activity up to 24 hr post treatment. Radioactivity due to 1,2,3-trichlorobenzene dropped to background levels after 56 days for liver, fat, and skin and 28 days for the other tissues. The highest 1,2,3-trichlorobenzene concentrations were found in liver, fat, kidney, and bladder. Significant levels of radioactivity from 1,3,5-trichlorobenzene remained in the tissues after 56 days for all tissues examined. Approx 85% of 1,3,5-trichlorobenzene and 92% of the 1,2,3-trichlorobenzene were excreted within 24 hr of dosing. Compartmental analysis showed 1,3,5-trichlorobenzene to have the highest values for the linear coefficients of exponential decay.
Kinetic study of the hydrogenolysis of polychlorobenzenes over a Pd/C catalyst in an alkaline aqueous-n-hexane system
摘要:
The kinetics of the hydrogenolysis of chlorobenzene, dichlorobenzenes and some trichlorobenzenes over a 10% Pd/C catalyst was studied using a multiphase system. The reactions were carried out in a batch reactor with an aqueous NaOH/n-hexane solution of chloroaromatic compound as the liquid phase. Benzene was the final product of the hydrogenolysis of all the compounds studied. Hydrogenolysis was more effective in the presence of in situ generated hydrogen than gaseous hydrogen. The initial reaction rates and TOFs of dichlorobenzenes and trichlorobenzenes were slightly lower than those of chlorobenzene. The position of the chlorine atoms in trichlorobenzenes affects the kinetics of the removal of the first chlorine from these molecules. The differences in chlorine reactivity were explained by the inductive and steric effects induced by the benzene-CI bonds. (C) 2010 Elsevier B.V. All rights reserved.
Nine 1,3-dichlorobenzene congeners were selected as model compds. to assess the relative rates of proton abstraction from 4- and 5-positions ("ortho" vs. "meta" metalation). Using lithium 2,2,6,6-tetramethylpiperidide as the basic reagent, the chlorine-adjacent 4-position underwent metalation exclusively. In contrast, attack at the chlorine-remote 5-position became significant even in the case of moderately
A tetrazolinone compound of formula (1):
wherein R
1
and R
2
each independently represents a hydrogen atom, etc.;
R
3
represents a C1-C6 alkyl group, etc.; R
4
, R
5
, and R
6
each independently represents a hydrogen atom, etc.; A represents a C6-C16 aryl group optionally having one or more atoms or groups selected from Group P, etc.; Q represents the following group Q1, etc.; and
X represents an oxygen atom or a sulfur atom, has excellent control activity against pests.
Disclosed are electroluminescent devices that comprise organic layers that contain certain 2H-benzotriazole compounds. The 2H-benzotriazole compounds of blue-emitting, durable, organo-electrouminescent layers. The electroluminescent devices may be employed for full color display panels in for example mobile phones, televisions and personal computer screens.
Sodiummethoxide reacts with dichlorobenzenes in HMPA to give the chloroanisoles as a result of a SNAr process. Excess MeONa then effects the demethylation of the ethers to give the chlorophenols via an SN2 reaction. With tri- and tetrachlorobenzenes the initially formed chloroanisoles can be dealkylated to chlorophenols or can suffer further substitution to give the chlorodimethoxybenzenes; these
由于S N Ar过程,甲醇钠与HMPA中的二氯苯反应生成氯茴香醚。然后过量的MeONa通过S N 2反应使醚脱甲基,得到氯酚。用三氯苯和四氯苯可以将最初形成的氯茴香醚脱烷基化为氯酚,或者可以进一步取代生成氯二甲氧基苯;它们与过量的MeONa反应,得到氯甲氧基苯酚。在取代基的电子效应的基础上,介绍并讨论了用二,三和四氯苯的各种异构体获得的结果。
[EN] METHODS FOR PRODUCING ARYLSULFUR PENTAFLUORIDES<br/>[FR] PROCÉDÉS DE PRODUCTION DE PENTAFLUORURES DE SOUFRE ARYLÉS
申请人:IM & T RES INC
公开号:WO2010014665A1
公开(公告)日:2010-02-04
Novel methods for preparing arylsulfur pentafluorides are disclosed. Arylsulfur halotetrafluoride is reacted with a fluoride source under hydrous conditions to form an arylsulfur pentafluoride. The purification method is also disclosed.