| Kev piav qhia |
Trichlorobenzenes (TCBs) yog cov tshuaj hluavtaws uas tshwm sim hauv peb hom isomeric sib txawv. Peb chlorinated cyclic aromatic isomers yog 1,2,3-trichlorobenzene (1,2,{5}}TCB), 1,2,4-trichlorobenzene (1,2,{11}} TCB), thiab 1,3,5-trichlorobenzene (1,3,{17}}TCB). 1,2,4-TCB yog ib qho ntawm 188 cov tshuaj uas raug xaiv los ua cov pa phem hauv huab cua raws li Txoj Cai Huv Huv. |
| Chemical Properties |
1,2,3-Trichlorobenzene thiab 1,3,5-trichlorobenzene yog cov khoom tsis muaj xim, thaum 1,2,4-trichlorobenzene yog cov kua tsis muaj xim. Txawm hais tias peb lub isomers ntawm trichlorobenzenes muaj tib lub cev hnyav thiab cov mis, lawv txhua tus yuav muaj cov tshuaj lom neeg thiab tshuaj lom neeg sib txawv. Ib qho ntawm cov isomers (1,2,{11}}trichlorobenzene) yog tsim los ntawm ntau qhov ntau thiab siv los ua cov kuab tshuaj kom yaj cov ntaub ntawv tshwj xeeb xws li roj, waxes, resins, roj, thiab roj hmab. Nws kuj nquag siv los tsim dyes thiab textiles. Lwm ob isomers, 1,2,3-trichlorobenzene thiab 1,3,{17}}trichlorobenzene, yog tsim nyob rau hauv qis thiab siv tsawg dua. |
| Siv |
Trichlorobenzenes feem ntau yog siv los ua cov kuab tshuaj hauv kev lag luam tshuaj lom neeg. 1,2,4-Trichlorobenzene yog kev lag luam tseem ceeb tshaj plaws isomer. 1,2,4-Trichlorobenzene yog siv los ua cov kuab tshuaj nyob rau hauv cov tshuaj tiv thaiv rau yaj roj, waxes, thiab resins. Tsis tas li ntawd, nws kuj yog siv los ua cov khoom siv dye. 1,2,3- Trichlorobenzene yog siv los ua ib qho nruab nrab rau kev tsim tshuaj tua kab, pigments, thiab dyes. 1,3,5-Trichlorobenzene tsis yog lag luam lag luam thiab muaj kev siv tsawg heev raws li cov tshuaj nruab nrab. Tsis tas li ntawd, trichlorobenzenes kuj tseem siv tau los ua cov tshuaj degreasing, ua cov tso tsheb hlau luam thiab cov twj tso kua mis, thiab ua cov khoom siv hauv cov khoom siv ntoo thiab cov tshuaj abrasive. Lwm yam kev siv me me suav nrog kev ua haujlwm hlau, cov xim pleev xim, thiab cov tshuaj tiv thaiv corrosion hauv cov tshuaj tsuag. Yav dhau los, sib xyaw isomers ntawm trichlorobenzenes tau siv los tswj cov kab mob; Txawm li cas los xij, lawv siv tau raug txiav lawm. |
| Siv |
Detoxification los ntawm catalytic hydrotreatment ntawm 1,2, 3-Trichlorobenzene yog siv rau kev pov tseg cov organic pov tseg cov kua ua kua. Raws li cov ntsiab lus ntawm trichlorobenzene mixt siv rau kev tswj cov kab mob. Raws li transformer kua, dye carrier & hnyav. Solvent rau siab melting khoom, Coolant nyob rau hauv hluav taws xob installation thiab iav tempering. Hauv polyester dyeing, lubricants, Thaum tshav kub kub hloov nruab nrab. Raws li tshuaj lom neeg nruab nrab rau 2, 3-dichlorophenol. |
| Txhais |
ChEBI: 1,2,3-trichlorobenzene yog trichlorobenzene nqa chloro hloov pauv ntawm txoj haujlwm 1, 2 thiab 3. |
| Kev piav qhia dav dav |
Cov khoom dawb nrog cov ntxhiab tsw chlorobenzene. Insoluble nyob rau hauv dej thiab denser tshaj dej. Yog li ntawd, nyob rau hauv dej. Melting point 63-64 degree (145-147 degree F). |
| Cua & Dej Reactions |
Insoluble hauv dej. |
| Reactivity Profile |
1,2,3-Trichlorobenzene tuaj yeem cuam tshuam nrog cov tshuaj oxidizing. . Tej zaum yuav tawm cov tshuaj lom hydrogen chloride thiab phosgene gases hauv hluav taws. |
| Health Hazard |
Kev nqus pa tuaj yeem ua rau khaus ntawm qhov ua pa. Irritating rau qhov muag. Tej zaum yuav redden tawv nqaij ntawm kev sib cuag. Kev noj haus yuav ua rau lub siab puas tsuaj. |
| Environmental txoj hmoo |
Tshuaj lom neeg.Nyob rau hauv aerobic tej yam kev mob, av microbes muaj peev xwm degrading 1,2,3- trichlorobenzene mus rau 1,2- thiab 1,3-dichlorobenzene thiab carbon dioxide (Kobayashi thiab Rittman, 1982). Kev sib xyaw ntawm cov kab mob hauv av los yog Pseudomonas sp. Hloov 1,2,3-trichlorobenzene rau 2,3,{13}}, 3,4,{16}}, thiab 2,3,{19}}trichlorophenol (Ballschiter thiab Scholz, 1980) .
Hauv cov kab lis kev cai enrichment tau muab los ntawm qhov chaw muaj kab mob hauv Bayou d'Inde, LA, 1,2, 3- trichlorobenzene underwent reductive dechlorination mus rau 1,2- thiab 1,3-dichlorobenzene ntawm tus txheeb ze molar yields ntawm 1 thiab 99%, feem. Qhov siab tshaj plaws dechlorination tus nqi, raws li cov qauv pom zoo Michaelis-Menten, yog 60 nM / d (Pavlostathis thiab Prytula, 2000).
Photolytic.Lub hnub ci irradiation ntawm 1,2, 3-trichlorobenzene (20 g) hauv ib 100-mL borosilicate iav-stoppered Erlenmeyer hwj rau 56 d yielded 32 ppm pentachlorobiphenyl (Uyeta li al., 1976).
Tshuaj / Lub cev.Ntawm 70.0 degree thiab pH qhov tseem ceeb ntawm 3.07, 7.13, thiab 9.80, hydrolysis ib nrab-lub neej raug suav ua 19.2, 15.0, thiab 34.4 d, raws li (Ellington li al., 1986 ). Emits chloride fumes thaum rhuab mus rau decomposition. |
| Txoj Kev Purification |
Crystallize nws los ntawm EtOH. [Beilstein 5 IV 664.] |
| Kev tshuaj ntsuam toxicity |
Lub siab yog lub hom phiaj tseem ceeb ntawm trichlorobenzenes tsis hais txog ntawm txoj kev raug. Cov txheej txheem ntawm lub siab toxicity tshwm sim los ntawm cov tshuaj no tsis tau piav qhia. Nws tuaj yeem koom nrog nruab nrab arene oxides tsim thaum pib hloov mus rau trichlorophenols. Tsis tas li ntawd, raug rau 1,2, 4-TCB induced porphyria nyob rau hauv nas los ntawm inducing δ-aminolevulinic acid (ALA) synthetase, tus nqi-txheej enzyme nyob rau hauv lub biosynthesis ntawm heme, thiab kuj heme oxygenase, ib tug ratelimiting enzyme nyob rau hauv qhov degradation ntawm heme synthetase, thiab yog li ntawd nce heme ntau lawm. |
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