2-Bromo-4-fluorobenzotrifluoride (CAS # 351003-21-9)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S23 - Tsis txhob ua pa. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. |
| WGK Germany | 3 |
| HS Code | 2 903990 |
| Hazard Class | IRRITANT |
Taw qhia
Nws yog ib qho organic compound nrog cov tshuaj formula C7H3BrF4. Nws yog cov xim tsis muaj xim rau daj ntseg daj nrog cov ntxhiab tsw tshwj xeeb ntawm chav sov.
Xwm:
1. melting point: -33 ℃
2. Kub taw tes: 147-149 ℃
3. Ceev: 1.889g/cm³
4. Solubility: Soluble nyob rau hauv organic solvents xws li ether, ethanol thiab dichloromethane, insoluble nyob rau hauv dej.
Siv:
Nws yog tsuas yog siv los ua ib qho nruab nrab hauv cov organic synthesis. Nws yog feem ntau siv nyob rau hauv tshuaj synthesis, tshuaj catalysis thiab organic cov ntaub ntawv, xws li benzopyrazolones, cyclic macrocyclization, organic photoelectric cov ntaub ntawv synthesis, thiab lwm yam.
Txoj Kev Npaj:
Txoj kev npaj ntawm calcium yog tsuas yog los ntawm cov tshuaj tiv thaiv ntawm bromobenzene thiab trifluorotoluene nyob rau hauv qhov tsim nyog. Feem ntau, bromobenzene reacts nrog trifluorotoluene nyob rau hauv lub xub ntiag ntawm tooj liab hmoov los yog cuprous nyob rau hauv cua sov los tsim fluorotoluene.
Cov ntaub ntawv kev nyab xeeb:
Nws yog khaus thiab yuav tsum tsis txhob kov ncaj qha rau ntawm daim tawv nqaij thiab qhov muag. Cov cuab yeej tiv thaiv tus kheej xws li hnab looj tes tiv thaiv, tsom iav thiab cov khaub ncaws tiv thaiv yuav tsum hnav thaum siv thiab tuav. Tsis txhob nqus nws cov vapors thiab nco ntsoov ua haujlwm hauv qhov chaw muaj cua zoo. Tsis tas li ntawd, nws yuav tsum tau muab khaws cia rau hauv lub thawv kaw, kom deb ntawm qhov chaw kub thiab hluav taws. Hauv kev siv lossis pov tseg, thov ua raws li cov txheej txheem kev nyab xeeb. Yog tias muaj qhov xau tshwm sim, kev tu kom tsim nyog thiab kev pov tseg yuav tsum tau ua. Yog tias tsim nyog, tus kws tshaj lij yuav tsum tau sab laj.
