2 5-Difluorotoluene (CAS # 452-67-5)
| Risk Codes | 11 - Cov nplaim hluav taws kub heev |
| Kev nyab xeeb piav qhia | S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S29 - Tsis txhob muab tso rau hauv qhov dej. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 3 |
| HS Code | 2 903990 |
| Kev Ceeb Toom | Flamable |
| Hazard Class | 3 |
| Packing Group | II |
Taw qhia
2,5-Difluorotoluene yog ib qho organic compound.
Zoo:
2,5-Difluorotoluene yog cov kua tsis muaj xim nrog cov ntxhiab tsw qab benzene. Nws tsis zoo soluble hauv dej thiab soluble hauv cov kuab tshuaj organic xws li ethanol, ether thiab benzene. 2,5-Difluorotoluene ruaj khov rau huab cua, tab sis maj mam decomposes thaum raug lub teeb.
Siv:
2,5-Difluorotoluene muaj ntau yam kev siv hauv kev lag luam. Thib ob, nws kuj tseem siv los ua cov tshuaj fluorination reagent hauv cov organic synthesis, uas tuaj yeem qhia cov fluorine atoms rau hauv cov molecules, nce cov haujlwm ntawm cov molecules thiab hloov cov tshuaj lom neeg. Vim nws cov khoom tshwj xeeb ntawm lub cev thiab tshuaj lom neeg, 2,5-difluorotoluene tuaj yeem siv los ua cov kuab tshuaj thiab cov tshuaj rho tawm.
Txoj kev:
Cov synthesis ntawm 2,5-difluorotoluene feem ntau tau los ntawm cov tshuaj fluorinated. Cov txheej txheem tshwj xeeb suav nrog cov tshuaj tiv thaiv ntawm benzene nrog cov roj fluorine nyob rau hauv lub xub ntiag ntawm ib tug muaj zog fluorinating tus neeg sawv cev, los yog kev siv ntawm bisulfate fluoric acid ua fluorine qhov chaw rau fluorinated tshuaj.
Cov ntaub ntawv kev nyab xeeb:
Thaum siv thiab khaws cia 2,5-difluorotoluene, cov hauv qab no yuav tsum tau muab sau tseg: nws yog cov organic hnyav, volatile thiab yuav tsum tau zam los ntawm inhalation thiab tiv nrog daim tawv nqaij. Qhov thib ob, nws ua rau khaus qhov muag, tawv nqaij thiab ua pa, thiab yuav tsum tau siv cov kev tiv thaiv tsim nyog, xws li hnav tsom iav tiv thaiv, hnav khaub ncaws tiv thaiv thiab siv hnab looj tes tiv thaiv. Nws yuav tsum tau ua haujlwm nyob rau hauv qhov chaw uas muaj cua zoo thiab tsis txhob sib cuag nrog qhov chaw hluav taws kub los tiv thaiv cov xwm txheej tsis xav tau xws li hluav taws kub thiab tawg.
