4-Bromo-3-fluorotoluene (CAS # 452-74-4)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | R10 - Flammable R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| HS Code | 2 903990 |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 3 |
| Packing Group | III |
Taw qhia
4-Bromo-3-fluorotoluene yog ib qho organic compound. Cov hauv qab no yog kev qhia txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
4-Bromo-3-fluorotoluene yog cov kua tsis muaj xim nrog lub nplhaib benzene thiab bromine thiab fluorine hloov pauv. Nws muaj ib tug pungent tsw ntawm chav tsev kub. Nws tsis zoo soluble hauv dej txias tab sis tuaj yeem yaj hauv cov kuab tshuaj organic.
Siv:
4-Bromo-3-fluorotoluene yog ib qho tseem ceeb nruab nrab ntawm cov organic synthesis. Nws kuj yog feem ntau siv nyob rau hauv cov khoom siv, piv txwv li rau cov synthesis ntawm polymers nrog cov khoom tshwj xeeb.
Txoj kev:
Kev npaj ntawm 4-bromo-3-fluorotoluene yog ua tiav los ntawm reacting hydrogen fluoride (HF) thiab hydrogen bromide (HBr) nrog cov toluene-raws li cov tebchaw hauv cov tshuaj tiv thaiv. Cov tshuaj tiv thaiv no yuav tsum tau ua ntawm qhov kub thiab txias thiab siv cov kua qaub catalyst.
Cov ntaub ntawv kev nyab xeeb:
4-Bromo-3-fluorotoluene yog ib qho tshuaj lom neeg thiab yuav tsum tau zam los ntawm kev sib cuag ncaj qha rau ntawm daim tawv nqaij, qhov muag, thiab ua pa. Thaum siv, cov cuab yeej tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab lub ntsej muag tiv thaiv yuav tsum hnav. Thaum tuav cov khoom sib xyaw no, cov txheej txheem kuaj xyuas kev nyab xeeb yuav tsum tau ua raws thiab ua haujlwm hauv qhov chaw muaj cua zoo. Nws yuav tsum tau muab cia rau hauv qhov chaw qhuav, txias thiab zoo-ventilated, deb ntawm qhov hluav taws kub thiab qhib nplaim taws. Ib qho kev lag luam uas siv cov khoom sib txuas yuav tsum tau ua nrog cov cuab yeej tsim nyog thiab cov xwm txheej, nrog rau kev cob qhia tsim nyog thiab cov neeg ua haujlwm uas nkag siab txog kev ua haujlwm nyab xeeb.
