4-Bromo-3-fluorobenzotrifluoride (CAS # 40161-54-4)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. R51 - Tshuaj lom rau cov kab mob hauv dej R36 - Khau qhov muag R38 - Irritating rau ntawm daim tawv nqaij R37 - Ua rau khaus khaus ua pa |
| 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. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S36 - Hnav khaub ncaws tiv thaiv zoo. S37 - Hnav cov hnab looj tes tsim nyog. |
| HS Code | 2 903990 |
| Hazard Class | IRRITANT |
Taw qhia
yog ib qho organic compound, tshuaj formula rau C7H3BrF4, nws cov tsos yog tsis muaj xim los yog lub teeb daj kua. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
- Ceev: approx. 1.894g/cm³
- Melting point: kwv yees li -23 ° C
- Boiling point: txog 166-168 ° C
-Solubility: Nws yog soluble nyob rau hauv cov organic solvents, xws li ethanol, dimethylformamide thiab dichloromethane.
Siv:
Nws yog tsuas yog siv nyob rau hauv lub teb ntawm organic synthesis raws li ib tug raw khoom rau cov synthesis ntawm ntau yam tshuaj thiab intermediates. Nws yog feem ntau siv hauv cov tshuaj fluorination thiab cov tshuaj tiv thaiv alkylation. Tsis tas li ntawd, nws tseem tuaj yeem siv los npaj cov tshuaj tua kab, cov ntaub ntawv photoelectric thiab lwm cov organic tebchaw.
Txoj Kev Npaj:
Muaj ntau txoj kev sib txuas ntawm phosphor, thiab ib txoj hauv kev tau txais los ntawm cov tshuaj tiv thaiv ntawm 4-bromo-fluorobenzene thiab fluorine gas nyob rau hauv lub xub ntiag ntawm ib tug catalyst. Txoj kev npaj tshwj xeeb yuav tsum muaj qee yam kev ua haujlwm hauv chav kuaj thiab tej yam kev mob.
Cov ntaub ntawv kev nyab xeeb:
- feem ntau kuj muaj kev nyab xeeb raws li kev siv ib txwm siv. Txawm li cas los xij, txhua yam tshuaj lom neeg yuav tsum tau siv kom raug thiab ua raws li cov txheej txheem ua haujlwm nyab xeeb.
- Hnav cov cuab yeej tiv thaiv tsim nyog xws li hnab looj tes tiv thaiv, tsom iav thiab lub ntsej muag tiv thaiv thaum siv.
-Tsis txhob ua pa nws cov vapors lossis tiv nrog daim tawv nqaij thiab qhov muag.
-Thaum khaws cia thiab tuav, tsis txhob sib cuag nrog cov oxidants muaj zog thiab kub kub.
-Thaum muaj kev sib cuag los yog siv tsis raug, nrhiav kev kho mob tam sim ntawd.
